Notice of Final Approval for an Alternative Means of Emission Limitation at Chevron Phillips Chemical Company LP, 27822-27827 [2017-12688]
Download as PDF
27822
Federal Register / Vol. 82, No. 116 / Monday, June 19, 2017 / Notices
Ford: https://www.epa.gov/vehicle-andengine-certification/ford-compliancematerials-light-duty-greenhouse-gasghg-standards
Hyundai: https://www.epa.gov/vehicleand-engine-certification/hyundaicompliance-materials-light-dutygreenhouse-gas-ghg-standards
EPA is providing a 30-day comment
period on the applications for off-cycle
credits described in this action, as
specified by the regulations. The
manufacturers may submit a written
rebuttal of comments for EPA’s
consideration, or may revise an
application in response to comments.
After reviewing any public comments
and any rebuttal of comments submitted
by manufacturers, EPA will make a final
decision regarding the credit requests.
EPA will make its decision available to
the public by placing a decision
document (or multiple decision
documents) in the docket and on EPA’s
Web site at the same manufacturerspecific pages shown previously. While
the broad methodologies used by these
manufacturers could potentially be used
for other vehicles and by other
manufacturers, the vehicle specific data
needed to demonstrate the off-cycle
emissions reductions would likely be
different. In such cases, a new
application would be required,
including an opportunity for public
comment.
Dated: May 16, 2017.
Byron J. Bunker,
Director, Compliance Division, Office of
Transportation and Air Quality, Office of Air
and Radiation.
[FR Doc. 2017–12737 Filed 6–16–17; 8:45 am]
BILLING CODE 6560–50–P
ENVIRONMENTAL PROTECTION
AGENCY
[EPA–HQ–OAR–2014–0738; FRL–9963–44–
OAR]
Notice of Final Approval for an
Alternative Means of Emission
Limitation at Chevron Phillips
Chemical Company LP
Environmental Protection
Agency (EPA).
ACTION: Notice; final approval.
asabaliauskas on DSKBBXCHB2PROD with NOTICES
AGENCY:
This notice announces our
approval of the Alternative Means of
Emission Limitation (AMEL) request
from Chevron Phillips Chemical
Company LP (CP Chem) under the Clean
Air Act (CAA) to operate a multi-point
ground flare (MPGF) at their ethylene
plant in Baytown, Texas, and to operate
an MPGF at their polyethylene plant in
SUMMARY:
VerDate Sep<11>2014
17:09 Jun 16, 2017
Jkt 241001
Old Ocean, Texas. This approval notice
specifies the operating conditions and
monitoring, recordkeeping, and
reporting requirements that these
facilities must follow to demonstrate
compliance with the approved AMEL.
DATES: The approval of the AMEL
request for the MPGF at CP Chem’s
ethylene plant in Baytown, Texas, and
the MPGF at CP Chem’s polyethylene
plant in Old Ocean, Texas, is effective
on June 19, 2017.
ADDRESSES: The Environmental
Protection Agency (EPA) has established
a docket for this action under Docket ID
No. EPA–HQ–OAR–2014–0738. All
documents in the docket are listed on
the https://www.regulations.gov Web
site. Although listed in the index, some
information is not publicly available,
e.g., confidential business information
(CBI) or other information whose
disclosure is restricted by statute.
Certain other material, such as
copyrighted material, is not placed on
the Internet and will be publicly
available only in hard copy form.
Publicly available docket materials are
available either electronically through
https://www.regulations.gov, or in hard
copy at the EPA Docket Center, EPA
WJC West Building, Room Number
3334, 1301 Constitution Ave. NW.,
Washington, DC. The Public Reading
Room hours of operation are 8:30 a.m.
to 4:30 p.m. Eastern Standard Time
(EST), Monday through Friday. The
telephone number for the Public
Reading Room is (202) 566–1744, and
the telephone number for the Air Docket
is (202) 566–1742.
FOR FURTHER INFORMATION CONTACT: For
questions about this final action, contact
Mr. Andrew Bouchard, Sector Policies
and Programs Division (E143–01), Office
of Air Quality Planning and Standards
(OAQPS), U.S. Environmental
Protection Agency, Research Triangle
Park, North Carolina 27711; telephone
number: (919) 541–4036; fax number:
(919) 541–3470; and email address:
bouchard.andrew@epa.gov.
SUPPLEMENTARY INFORMATION:
Acronyms and Abbreviations. We use
multiple acronyms and terms in this
notice. While this list may not be
exhaustive, to ease the reading of this
notice and for reference purposes, the
EPA defines the following terms and
acronyms here:
AMEL alternative means of emission
limitation
Btu/scf British thermal units per standard
cubic foot
CAA Clean Air Act
CBI confidential business information
CFR Code of Federal Regulations
CP Chem Chevron Phillips Chemical
PO 00000
Frm 00041
Fmt 4703
Sfmt 4703
Company LP
EPA Environmental Protection Agency
Eqn equation
HAP hazardous air pollutants
HP high pressure
LFL lower flammability limit
LFLcz lower flammability limit of
combustion zone gas
LFLvg lower flammability limit of flare vent
gas
MPGF multi-point ground flare
NESHAP national emission standards for
hazardous air pollutants
NHV net heating value
NHVcz net heating value of combustion
zone gas
NHVvg net heating value of flare vent gas
NSPS new source performance standards
OAQPS Office of Air Quality Planning and
Standards
scf standard cubic feet
VOC volatile organic compounds
Organization of This Document. The
information in this notice is organized
as follows:
I. Background
A. Summary
B. Regulatory Flare Requirements and CP
Chem’s AMEL Request
II. Summary of Public Comments on CP
Chem’s AMEL Request
III. Final Notice of Approval of CP Chem’s
AMEL Request and Required Operating
Conditions
I. Background
A. Summary
In a Federal Register notice dated
April 4, 2017, the EPA provided public
notice and solicited comment on CP
Chem’s AMEL request under the CAA
for the operation of an MPGF at an
ethylene plant in Baytown, Texas, and
for the operation of an MPGF at a
polyethylene plant in Old Ocean, Texas
(see 82 FR 16392).1 This action solicited
comment on all aspects of the AMEL
request, including the operating
conditions specified in that action that
are necessary to achieve a reduction in
emissions of volatile organic
compounds (VOC) and organic
hazardous air pollutants (HAP) at least
equivalent to the reduction in emissions
required by various standards in 40 CFR
parts 60, 61, and 63 that apply to
emission sources that would be
controlled by these MPGFs. These
standards incorporate the design and
operating requirements for flares in the
General Provisions to parts 60 and 63 as
part of the emission reduction
requirements. Because the two proposed
MPGFs cannot meet the velocity
requirements in these General
1 The MPGFs at both the ethylene plant and
polyethylene plant will utilize pressure-assisted
burners on all the high pressure (HP) stages;
however, the first two stages on the MPGF at the
polyethylene plant will also be steam-assisted.
E:\FR\FM\19JNN1.SGM
19JNN1
Federal Register / Vol. 82, No. 116 / Monday, June 19, 2017 / Notices
Provisions, CP Chem requested an
AMEL. In its request, CP Chem
demonstrates that the proposed AMEL
for each of the two facilities would
achieve at least equivalent emissions
reductions as flares that meet the
standards in the General Provisions.
This action provides a summary of the
comments received as part of the public
review process, our response to those
comments, and our approval of the
AMEL request received from CP Chem
for use of MPGFs at both their ethylene
plant in Baytown, Texas, and
polyethylene plant in Old Ocean, Texas,
along with the operating conditions they
must follow for demonstrating
compliance with the approved AMEL.
B. Regulatory Flare Requirements and
CP Chem’s AMEL Request
CP Chem submitted a complete MPGF
AMEL request, following the MPGF
AMEL framework that was published in
the Federal Register (see 81 FR 23480,
April 21, 2016), to the EPA on
November 28, 2016. CP Chem sought an
AMEL to operate an MPGF for use
during limited HP maintenance, startup,
and shutdown events, as well as during
upset events at their ethylene plant in
Baytown, Texas. In addition, CP Chem
sought an AMEL to operate an MPGF
during certain routine operations (i.e.,
the first two stages only), as well as
during periods of maintenance, startup,
shutdown, and upset at their
polyethylene plant in Old Ocean, Texas.
In its request, CP Chem cited various
regulatory requirements in 40 CFR parts
27823
60, 61, and 63 that will apply to the
flare vent gas streams that will be
collected and routed to their MPGFs at
each of these two plants. See Table 1 for
a list of regulations, by subparts, that CP
Chem has identified as applicable to the
two plants described above. These new
source performance standards (NSPS)
and national emissions standards for
hazardous air pollutants (NESHAP)
require that flares subject to these
subparts meet the flare design and
operating requirements in the General
Provisions of part 60 and 63,
respectively (i.e., 40 CFR 60.18(b) and
63.11(b)). CP Chem is requesting that
the EPA approve the AMEL to be used
by each of the two plants for complying
with the flare requirements in the
relevant subparts as specified in Table
1.
TABLE 1—SUMMARY OF APPLICABLE RULES THAT MAY APPLY TO VENT STREAMS CONTROLLED BY MULTI-POINT GROUND
FLARES
CP chem
ethylene plant
CP chem
polyethylene
plant
Rule citation from Title 40 CFR
that allow for use of a flare
NSPS Subpart VV ..........................
NSPS Subpart VVa ........................
NSPS Subpart DDD .......................
NSPS Subpart NNN .......................
NSPS Subpart RRR .......................
NESHAP Subpart FF ......................
NESHAP Subpart SS .....................
NESHAP Subpart UU .....................
NESHAP Subpart XX .....................
........................
X
........................
X
X
X
X
X
X
X
........................
X
........................
........................
........................
........................
........................
........................
NESHAP Subpart YY .....................
X
........................
NESHAP Subpart FFFF .................
asabaliauskas on DSKBBXCHB2PROD with NOTICES
Applicable rules with vent streams
going to control device(s)
........................
X
60.482–10(d) ..................................
60.482–10a(d) ................................
60.562–1(a)(1)(i)(C) .......................
60.662(b) ........................................
60.702(b) ........................................
61.349(a)(2) ...................................
63.982(b) ........................................
63.1034 ..........................................
63.1091 ..........................................
* Note—This subpart cross-references to NESHAP subpart FF
above.
Table 7 to § 63.1103(e) cross-references to NESHAP subpart SS
above.
63.2450(e)(2) .................................
The provisions in each NSPS and
NESHAP cited in Table 1 that ensure
flares meet certain specific requirements
when used to satisfy the requirements of
the NSPS or NESHAP were established
as work practice standards pursuant to
CAA sections 111(h)(1) or 112(h)(1). For
standards established according to these
provisions, CAA sections 111(h)(3) and
112(h)(3) allow the EPA to permit the
use of an AMEL by a source if, after
notice and opportunity for comment,2 it
is established to the Administrator’s
satisfaction that such AMEL will
achieve emission reduction at least
equivalent to the reduction required
under the CAA section 111(h)(1) or
2 CAA section 111(h)(3) specifically requires that
the EPA provide an opportunity for a public
hearing. The EPA provided an opportunity for a
public hearing in the April 4, 2017, Federal
Register action. However, no public hearing was
requested.
VerDate Sep<11>2014
17:09 Jun 16, 2017
Jkt 241001
112(h)(1) standard. As noted in Table 1,
many of the NSPS and NESHAP in the
table above also include specific
regulatory provisions allowing sources
to request an AMEL.
CP Chem sought such an AMEL
request because their MPGFs are not
designed to operate below the maximum
permitted velocity requirements for
flares in the General Provisions of 40
CFR parts 60 and 63. CP Chem provided
information that the MPGFs they
propose to use will achieve a reduction
in emissions at least equivalent to the
reduction in emissions for flares
complying with these General
Provisions requirements (for further
background information on the
regulatory flare requirements and a
facility’s ability to request an AMEL, see
82 FR 16392–16399, April 4, 2017).
PO 00000
Frm 00042
Fmt 4703
Sfmt 4703
Provisions for alternative means of
emission limitation
60.484(a)–(f).
60.484a(a)–(f).
CAA section 111(h)(3).
CAA section 111(h)(3).
CAA section 111(h)(3).
61.353(a); also see 61.12(d).
CAA section 112(h)(3).
63.1021(a)–(d).
63.1097(b)(1).
63.1113.
63.2545(b)(1); also see 63.6(g).
II. Summary of Public Comments on CP
Chem’s AMEL Request
The EPA received eight public
comments on this action. The public
comments received fell into one of the
following three bins: (1) General support
for CP Chem’s AMEL request, (2)
general opposition to CP Chem’s AMEL
request, and (3) general comments
outside the scope of the action. None of
the comments raised issues or otherwise
mentioned any specific aspect of the
MPGFs (including any operating
condition) proposed for either of the
two plants or the EPA’s authority to
approve these AMEL under the CAA.
None of the commenters who opposed
the EPA’s proposal to approve the
AMEL with the operating conditions
specified in the April 4, 2017, action
asserted that the EPA lacked authority
to approve the AMEL or that the AMEL
would not achieve at least equivalent
E:\FR\FM\19JNN1.SGM
19JNN1
Federal Register / Vol. 82, No. 116 / Monday, June 19, 2017 / Notices
Btu/scf.
Qvg = Cumulative volumetric flow of flare
vent gas during the 15-minute block
period, standard cubic feet (scf).
Qs = Cumulative volumetric flow of total
assist steam during the 15-minute block
period, scf.
asabaliauskas on DSKBBXCHB2PROD with NOTICES
Where:
LFLvg = Lower flammability limit of flare vent
gas, volume percent (vol %).
n = Number of components in the vent gas.
i = Individual component in the vent gas.
Xi = Concentration of component i in the vent
gas, vol %.
LFLi = Lower flammability limit of
component i as determined using values
VerDate Sep<11>2014
17:09 Jun 16, 2017
Jkt 241001
published by the U.S. Bureau of Mines
(Zabetakis, 1965), vol %. All inerts,
including nitrogen, are assumed to have
an infinite LFL (e.g., LFLN2 = ∞, so that
XN2/LFLN2 = 0). LFL values for common
flare vent gas components are provided
in Table 2.
(ii) For all MPGF HP stages at CP
Chem’s ethylene plant and for all MPGF
PO 00000
Frm 00043
Fmt 4703
Sfmt 4703
NHVvg = Net heating value of flare vent gas,
Btu/scf. Flare vent gas means all gas
found just prior to the MPGF. This gas
includes all flare waste gas (i.e., gas from
facility operations that is directed to a
flare for the purpose of disposing of the
gas), flare sweep gas, flare purge gas and
flare supplemental gas, but does not
include pilot gas.
i = Individual component in flare vent gas.
n = Number of components in flare vent gas.
xi = Concentration of component i in flare
vent gas, volume fraction.
NHVi = Net heating value of component i
determined as the heat of combustion
where the net enthalpy per mole of
offgas is based on combustion at 25
degrees Celsius (°C) and 1 atmosphere
(or constant pressure) with water in the
gaseous state from values published in
the literature, and then the values
converted to a volumetric basis using
20 °C for ‘‘standard temperature.’’ Table
2 summarizes component properties
including net heating values.
(ii) For all MPGF HP stages at CP
Chem’s ethylene plant and for all MPGF
HP stages, excluding stage 1 and 2 for
CP Chem’s polyethylene plant, NHVvg =
NHVcz.
(iii) For HP stages 1 and 2 of CP
Chem’s polyethlene plant MPGF, NHVcz
shall be calculated using the following
equation:
(b) Calculation of LFLcz
(i) The owner or operator shall
determine LFLcz from compositional
analysis data by using the following
equation:
HP stages, excluding stages 1 and 2 for
CP Chem’s polyethylene plant, LFLvg =
LFLcz.
(iii) For HP stages 1 and 2 of CP
Chem’s polyethlene plant MPGF, LFLcz
shall be calculated using the following
equation:
E:\FR\FM\19JNN1.SGM
19JNN1
EN19JN17.002
Where:
NHVcz = Net heating value of combustion
zone gas, Btu/scf.
NHVvg = Net heating value of flare vent gas
for the 15-minute block period as
determined according to (1)(a)(i) above,
Where:
EN19JN17.001
III. Final Notice of Approval of CP
Chem’s AMEL Request and Required
Operating Conditions
Based on information the EPA
received from CP Chem and the
comments received through the public
comment period, we are approving CP
Chem’s request for an AMEL and
establishing operating requirements for
the MPGF at CP Chem’s ethylene plant
in Baytown, Texas, and the MPGF at CP
Chem’s polyethylene plant in Old
Ocean, Texas. The operating conditions
for CP Chem’s MPGF that will achieve
a reduction in emissions at least
equivalent to the reduction in emissions
being controlled by a steam-assisted, airassisted, or non-assisted flare complying
with the requirements of either 40 CFR
63.11(b) or 40 CFR 60.18(b) are as
follows: (1) The MPGF system for all HP
stages at CP Chem’s ethylene plant and
for all HP stages excluding stage 1 and
2 for CP Chem’s polyethylene plant
must be designed and operated such
that the net heating value of the
combustion zone gas (NHVcz) is greater
than or equal to 800 British thermal
units per standard cubic foot (Btu/scf) or
lower flammability limit of the
combustion zone gas (LFLcz) is less than
or equal to 6.5 percent by volume. The
MPGF system for HP stages 1 and 2 of
CP Chem’s polyethlene plant must be
designed and operated such that the
NHVcz is greater than or equal to 600
Btu/scf or the LFLcz is less than or equal
to 8.0 percent by volume. Owners or
operators must demonstrate compliance
with the NHVcz or LFLcz metric by
continuously complying with a 15minute block average. Owners or
operators must calculate and monitor
for the NHVcz or LFLcz according to the
following:
(a) Calculation of NHVcz
(i) The owner or operator shall
determine the net heating value of flare
vent gas (NHVvg) by following the
requirements of (1)(d)–(1)(e) below. If an
owner or operator elects to use a
monitoring system capable of
continuously measuring (i.e., at least
once every 15 minutes), calculating, and
recording the individual component
concentrations present in the flare vent
gas, NHVvg shall be calculated using the
following equation:
emissions reductions as flares that meet
the standards in the General Provisions.
Additionally, the one commenter who
generally opposed CP Chem’s AMEL
request did not provide any substantive
reason for why they opposed the
request, other than to note that existing
regulations should be followed.
Therefore, no changes have been made
to the operating conditions specified in
the April 4, 2017, action.
EN19JN17.000
27824
27825
Federal Register / Vol. 82, No. 116 / Monday, June 19, 2017 / Notices
Where:
LFLcz = Lower flammability limit of
combustion zone gas, vol %.
LFLvg = Lower flammability limit of flare vent
gas, vol %.
Qvg = Cumulative volumetric flow of flare
vent gas during the 15-minute block
period, scf.
Qs = Cumulative volumetric flow of total
assist steam during the 15-minute block
period, scf.
(c) The operator of an MPGF system
shall install, operate, calibrate, and
maintain a monitoring system capable of
continuously measuring the volumetric
flow rate of flare vent gas (Qvg) and the
volumetric flow rate of total assist steam
(Qs).
(i) The flow rate monitoring systems
must be able to correct for the
temperature and pressure of the system
and output parameters in standard
conditions (i.e., a temperature of 20 °C
(68 °F) and a pressure of 1 atmosphere).
(ii) Mass flow monitors may be used
for determining volumetric flow rate of
flare vent gas provided the molecular
weight of the flare vent gas is
determined using compositional
analysis so that the mass flow rate can
be converted to volumetric flow at
standard conditions using the following
equation:
Where:
Qvol = Volumetric flow rate, scf per second.
Qmass = Mass flow rate, pounds per second.
385.3 = Conversion factor, scf per poundmole.
MWt = Molecular weight of the gas at the
flow monitoring location, pounds per
pound-mole.
(iii) Mass flow monitors may be used
for determining volumetric flow rate of
total assist steam. Use Equation 5 to
convert mass flow rates to volumetric
flow rates. Use a molecular weight of 18
pounds per pound-mole for total assist
steam.
(d) The operator shall install, operate,
calibrate, and maintain a monitoring
system capable of continuously
measuring (i.e., at least once every 15
minutes), calculating, and recording the
individual component concentrations
present in the flare vent gas or the
owner or operator shall install, operate,
calibrate, and maintain a monitoring
system capable of continuously
measuring, calculating, and recording
NHVvg (in Btu/scf).
(e) For each measurement produced
by the monitoring system used to
comply with (1)(d) above, the operator
shall determine the 15-minute block
average as the arithmetic average of all
measurements made by the monitoring
system within the 15-minute period.
(f) The operator must follow the
calibration and maintenance procedures
according to Table 3. Maintenance
periods, instrument adjustments, or
checks to maintain precision and
accuracy and zero and span adjustments
may not exceed 5 percent of the time the
flare is receiving regulated material.
TABLE 2—INDIVIDUAL COMPONENT PROPERTIES
C2H2 ......
C6H6 ......
C4H6 ......
C4H6 ......
C4H10 .....
C4H10 .....
C4H8 ......
C4H8 ......
C4H8 ......
CO2 ........
CO .........
C3H6 ......
C2H6 ......
C2H4 ......
H2 ...........
H2S ........
CH4 ........
C3H4 ......
N2 ...........
O2 ..........
C5H12 .....
C3H4 ......
C3H8 ......
C3H6 ......
H2O ........
VerDate Sep<11>2014
17:09 Jun 16, 2017
Jkt 241001
PO 00000
Frm 00044
Fmt 4703
Sfmt 4703
E:\FR\FM\19JNN1.SGM
26.04
78.11
54.09
54.09
58.12
58.12
56.11
56.11
56.11
44.01
28.01
42.08
30.07
28.05
2.02
34.08
16.04
40.06
28.01
32.00
72.15
40.06
44.10
42.08
18.02
19JNN1
NHVi
(British
thermal units
per standard
cubic foot)
1,404
3,591
2,794
2,690
2,957
2,968
2,830
2,928
2,826
0
316
2,185
1,595
1,477
274
587
896
2,088
0
0
3,655
2,066
2,281
2,150
0
LFLi
(volume %)
2.5
1.3
2.0
2.0
1.8
1.8
1.6
1.8
1.7
∞
12.5
2.4
3.0
2.7
4.0
4.0
5.0
1.7
∞
∞
1.4
2.16
2.1
2.4
∞
EN19JN17.004
Acetylene .................................................................................................................
Benzene ...................................................................................................................
1,2-Butadiene ..........................................................................................................
1,3-Butadiene ..........................................................................................................
iso-Butane ................................................................................................................
n-Butane ..................................................................................................................
cis-Butene ................................................................................................................
iso-Butene ................................................................................................................
trans-Butene ............................................................................................................
Carbon Dioxide ........................................................................................................
Carbon Monoxide ....................................................................................................
Cyclopropane ...........................................................................................................
Ethane .....................................................................................................................
Ethylene ...................................................................................................................
Hydrogen .................................................................................................................
Hydrogen Sulfide .....................................................................................................
Methane ...................................................................................................................
Methyl-Acetylene .....................................................................................................
Nitrogen ...................................................................................................................
Oxygen ....................................................................................................................
Pentane+ (C5+) .......................................................................................................
Propadiene ..............................................................................................................
Propane ...................................................................................................................
Propylene .................................................................................................................
Water .......................................................................................................................
MWi
(pounds per
pound-mole)
EN19JN17.003
asabaliauskas on DSKBBXCHB2PROD with NOTICES
Component
Molecular
formula
27826
Federal Register / Vol. 82, No. 116 / Monday, June 19, 2017 / Notices
TABLE 3—ACCURACY AND CALIBRATION REQUIREMENTS
Parameter
Flare Vent Gas Flow
Rate.
Flow Rate for All
Flows Other Than
Flare Vent Gas.
Pressure ..................
Net Heating Value
by Calorimeter.
asabaliauskas on DSKBBXCHB2PROD with NOTICES
Net Heating Value
by Gas Chromatograph.
Accuracy requirements
±20 percent of flow rate at velocities Performance evaluation biennially (every 2 years) and following any period of
ranging from 0.1 to 1 foot per second.
more than 24 hours throughout which the flow rate exceeded the maximum
±5 percent of flow rate at velocities
rated flow rate of the sensor, or the data recorder was off scale. Checks of
greater than 1 foot per second.
all mechanical connections for leakage monthly. Visual inspections and
checks of system operation every 3 months, unless the system has a redundant flow sensor.
Select a representative measurement location where swirling flow or abnormal
velocity distributions due to upstream and downstream disturbances at the
point of measurement are minimized.
±5 percent over the normal range of Conduct a flow sensor calibration check at least biennially (every two years);
flow measured or 1.9 liters per
conduct a calibration check following any period of more than 24 hours
minute (0.5 gallons per minute),
throughout which the flow rate exceeded the manufacturer’s specified maxwhichever is greater, for liquid flow.
imum rated flow rate or install a new flow sensor.
±5 percent over the normal range of At least quarterly, inspect all components for leakage, unless the continuous
flow measured or 280 liters per
parameter monitoring system has a redundant flow sensor.
minute (10 cubic feet per minute),
whichever is greater, for gas flow.
±5 percent over the normal range Record the results of each calibration check and inspection.
measured for mass flow.
Locate the flow sensor(s) and other necessary equipment (such as straightening vanes) in a position that provides representative flow; reduce swirling
flow or abnormal velocity distributions due to upstream and downstream disturbances.
±5 percent over the normal range Review pressure sensor readings at least once a week for straight-line (unmeasured or 0.12 kilopascals (0.5
changing) pressure and perform corrective action to ensure proper pressure
inches of water column), whichever is
sensor operation if blockage is indicated.
greater.
Performance evaluation annually and following any period of more than 24
hours throughout which the pressure exceeded the maximum rated pressure
of the sensor, or the data recorder was off scale. Checks of all mechanical
connections for leakage monthly. Visual inspection of all components for integrity, oxidation, and galvanic corrosion every 3 months, unless the system
has a redundant pressure sensor.
Select a representative measurement location that minimizes or eliminates pulsating pressure, vibration, and internal and external corrosion.
±2 percent of span ................................ Calibration requirements should follow manufacturer’s recommendations at a
minimum.
Temperature control (heated and/or cooled as necessary) the sampling system
to ensure proper year-round operation.
Where feasible, select a sampling location at least 2 equivalent diameters
downstream from and 0.5 equivalent diameters upstream from the nearest
disturbance. Select the sampling location at least 2 equivalent duct diameters
from the nearest control device, point of pollutant generation, air in-leakages,
or other point at which a change in the pollutant concentration or emission
rate occurs.
As specified in Performance Specifica- Follow the procedure in PS 9 of 40 CFR part 60, appendix B, except that a sintion (PS) 9 of 40 CFR part 60, apgle daily mid-level calibration check can be used (rather than triplicate analpendix B.
ysis), the multi-point calibration can be conducted quarterly (rather than
monthly), and the sampling line temperature must be maintained at a minimum temperature of 60 °C (rather than 120 °C).
(2) The MPGF system shall be
operated with a flame present at all
times when in use. Each burner on HP
stages 1 and 2 of CP Chem’s
polyethylene plant MPGF must have a
pilot with a continuously lit pilot flame.
Additionally, each HP stage of CP
Chem’s ethylene plant MPGF and all HP
stages, excluding stages 1 and 2 for CP
Chem’s polyethylene plant MPGF, must
have at least two pilots with a
continuously lit pilot flame. Each pilot
flame must be continuously monitored
by a thermocouple or any other
equivalent device used to detect the
presence of a flame. The time, date, and
duration of any complete loss of pilot
flame on any of the individual MPGF
burners on HP stages 1 and 2 of CP
VerDate Sep<11>2014
Calibration requirements
17:09 Jun 16, 2017
Jkt 241001
Chem’s polyethylene plant MPGF, on
any of the HP stages of CP Chem’s
ethylene plant MPGF, and on any of the
HP stages, excluding stages 1 and 2 of
CP Chem’s polyethylene plant MPGF,
must be recorded. Each monitoring
device must be maintained or replaced
at a frequency in accordance with the
manufacturer’s specifications.
(3) The MPGF system shall be
operated with no visible emissions
except for periods not to exceed a total
of 5 minutes during any 2 consecutive
hours. A video camera that is capable of
continuously recording (i.e., at least one
frame every 15 seconds with time and
date stamps) images of the flare flame
and a reasonable distance above the
flare flame at an angle suitable for
PO 00000
Frm 00045
Fmt 4703
Sfmt 4703
visible emissions observations must be
used to demonstrate compliance with
this requirement. The owner or operator
must provide real-time video
surveillance camera output to the
control room or other continuously
manned location where the video
camera images may be viewed at any
time.
(4) The operator of an MPGF system
shall install and operate pressure
monitor(s) on the main flare header, as
well as a valve position indicator
monitoring system capable of
monitoring and recording the position
for each staging valve to ensure that the
MPGF operates within the range of
tested conditions or within the range of
the manufacturer’s specifications. The
E:\FR\FM\19JNN1.SGM
19JNN1
asabaliauskas on DSKBBXCHB2PROD with NOTICES
Federal Register / Vol. 82, No. 116 / Monday, June 19, 2017 / Notices
pressure monitor shall meet the
requirements in Table 3. Maintenance
periods, instrument adjustments or
checks to maintain precision and
accuracy, and zero and span
adjustments may not exceed 5 percent
of the time the flare is receiving
regulated material.
(5) Recordkeeping Requirements.
(a) All data must be recorded and
maintained for a minimum of 3 years or
for as long as required under applicable
rule subpart(s), whichever is longer.
(6) Reporting Requirements.
(a) The information specified in
sections III (6)(b) and (c) of this
document below must be reported in the
timeline specified by the applicable rule
subpart(s) for which the MPGF will
control emissions.
(b) Owners or operators shall include
the following information in their initial
Notification of Compliance status
report:
(i) Specify flare design as a pressureassisted MPGF. CP Chem’s polyethylene
plant shall also clearly note that HP
stages 1 and 2 are also steam-assisted.
(ii) All visible emission readings,
NHVcz and/or LFLcz determinations, and
flow rate measurements. For MPGF, exit
velocity determinations do not need to
be reported as the maximum permitted
velocity requirements in the General
Provisions at 40 CFR 60.18(b) and 40
CFR 63.11(b) are not applicable.
(iii) All periods during the
compliance determination when a
complete loss of pilot flame on any stage
of MPGF burners occurs, and, for HP
stages 1 and 2 of CP Chem’s
polyethylene plant MPGF, all periods
during the compliance determination
when a complete loss of pilot flame on
an individual burner occurs.
(iv) All periods during the compliance
determination when the pressure
monitor(s) on the main flare header
show the MPGF burners operating
outside the range of tested conditions or
outside the range of the manufacturer’s
specifications.
(v) All periods during the compliance
determination when the staging valve
position indicator monitoring system
indicates a stage of the MPGF should
not be in operation and is or when a
stage of the MPGF should be in
operation and is not.
(c) The owner or operator shall notify
the Administrator of periods of excess
emissions in their Periodic Reports.
These periods of excess emissions shall
include:
(i) Records of each 15-minute block
for all HP stages of CP Chem’s ethylene
plant MPGF and for all HP stages
excluding stages 1 and 2 of CP Chem’s
polyethylene plant MPGF during which
VerDate Sep<11>2014
17:09 Jun 16, 2017
Jkt 241001
there was at least 1 minute when
regulated material was routed to the
MPGF and a complete loss of pilot flame
on a stage of burners occurred, and, for
HP stages 1 and 2 of CP Chem’s
polyethylene plant MPGF, records of
each 15-minute block during which
there was at least 1 minute when
regulated material was routed to the
MPGF and a complete loss of pilot flame
on an individual burner occurred.
(ii) Records of visible emissions
events (including the time and date
stamp) that exceed more than 5 minutes
in any 2-hour consecutive period.
(iii) Records of each 15-minute block
period for which an applicable
combustion zone operating limit (i.e.,
NHVcz or LFLcz) is not met for the MPGF
when regulated material is being
combusted in the flare. Indicate the date
and time for each period, the NHVcz
and/or LFLcz operating parameter for the
period and the type of monitoring
system used to determine compliance
with the operating parameters (e.g., gas
chromatograph or calorimeter). For CP
Chem’s polyethylene plant MPGF, also
indicate which HP stages were in use.
(iv) Records of when the pressure
monitor(s) on the main flare header
show the MPGF burners are operating
outside the range of tested conditions or
outside the range of the manufacturer’s
specifications. Indicate the date and
time for each period, the pressure
measurement, the stage(s) and number
of MPGF burners affected, and the range
of tested conditions or manufacturer’s
specifications.
(v) Records of when the staging valve
position indicator monitoring system
indicates a stage of the MPGF should
not be in operation and is or when a
stage of the MPGF should be in
operation and is not. Indicate the date
and time for each period, whether the
stage was supposed to be open, but was
closed or vice versa, and the stage(s) and
number of MPGF burners affected.
Dated: June 1, 2017.
Stephen Page,
Director, Office of Air Quality Planning and
Standards.
[FR Doc. 2017–12688 Filed 6–16–17; 8:45 am]
BILLING CODE 6560–50–P
FEDERAL ELECTION COMMISSION
Sunshine Act Notice
Federal Election Commission.
Thursday, June 22, 2017
at 10:00 a.m.
PLACE: 999 E Street NW., Washington,
DC (Ninth Floor).
AGENCY:
DATE AND TIME:
PO 00000
Frm 00046
Fmt 4703
Sfmt 4703
STATUS:
27827
This hearing will be open to the
public.
Audit Hearing:
Illinois Republican Party.
Individuals who plan to attend and
require special assistance, such as sign
language interpretation or other
reasonable accommodations, should
contact Dayna Brown, Secretary and
Clerk, at (202) 694–1040, at least 72
hours prior to the hearing date.
PERSON TO CONTACT FOR INFORMATION:
Judith Ingram, Press Officer, Telephone:
(202) 694–1220.
ITEM TO BE DISCUSSED:
Dayna C. Brown,
Secretary and Clerk of the Commission.
[FR Doc. 2017–12785 Filed 6–15–17; 11:15 am]
BILLING CODE 6715–01–P
FEDERAL RESERVE SYSTEM
Notice of Proposals To Engage in or
To Acquire Companies Engaged in
Permissible Nonbanking Activities
The companies listed in this notice
have given notice under section 4 of the
Bank Holding Company Act (12 U.S.C.
1843) (BHC Act) and Regulation Y, (12
CFR part 225) to engage de novo, or to
acquire or control voting securities or
assets of a company, including the
companies listed below, that engages
either directly or through a subsidiary or
other company, in a nonbanking activity
that is listed in § 225.28 of Regulation Y
(12 CFR 225.28) or that the Board has
determined by Order to be closely
related to banking and permissible for
bank holding companies. Unless
otherwise noted, these activities will be
conducted throughout the United States.
Each notice is available for inspection
at the Federal Reserve Bank indicated.
The notice also will be available for
inspection at the offices of the Board of
Governors. Interested persons may
express their views in writing on the
question whether the proposal complies
with the standards of section 4 of the
BHC Act.
Unless otherwise noted, comments
regarding the applications must be
received at the Reserve Bank indicated
or the offices of the Board of Governors
not later than July 3, 2017.
A. Federal Reserve Bank of Dallas
(Robert L. Triplett III, Senior Vice
President) 2200 North Pearl Street,
Dallas, Texas 75201–2272:
1. First Baird Bancshares, Inc.,
Weatherford, Texas; to acquire directly
and indirectly voting shares of Sharp
BancSystems, Inc., Bedford, Texas, and
thereby engage in data processing
activities pursuant to section
225.28(b)(14)(i) of Regulation Y.
E:\FR\FM\19JNN1.SGM
19JNN1
Agencies
[Federal Register Volume 82, Number 116 (Monday, June 19, 2017)]
[Notices]
[Pages 27822-27827]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-12688]
-----------------------------------------------------------------------
ENVIRONMENTAL PROTECTION AGENCY
[EPA-HQ-OAR-2014-0738; FRL-9963-44-OAR]
Notice of Final Approval for an Alternative Means of Emission
Limitation at Chevron Phillips Chemical Company LP
AGENCY: Environmental Protection Agency (EPA).
ACTION: Notice; final approval.
-----------------------------------------------------------------------
SUMMARY: This notice announces our approval of the Alternative Means of
Emission Limitation (AMEL) request from Chevron Phillips Chemical
Company LP (CP Chem) under the Clean Air Act (CAA) to operate a multi-
point ground flare (MPGF) at their ethylene plant in Baytown, Texas,
and to operate an MPGF at their polyethylene plant in Old Ocean, Texas.
This approval notice specifies the operating conditions and monitoring,
recordkeeping, and reporting requirements that these facilities must
follow to demonstrate compliance with the approved AMEL.
DATES: The approval of the AMEL request for the MPGF at CP Chem's
ethylene plant in Baytown, Texas, and the MPGF at CP Chem's
polyethylene plant in Old Ocean, Texas, is effective on June 19, 2017.
ADDRESSES: The Environmental Protection Agency (EPA) has established a
docket for this action under Docket ID No. EPA-HQ-OAR-2014-0738. All
documents in the docket are listed on the https://www.regulations.gov
Web site. Although listed in the index, some information is not
publicly available, e.g., confidential business information (CBI) or
other information whose disclosure is restricted by statute. Certain
other material, such as copyrighted material, is not placed on the
Internet and will be publicly available only in hard copy form.
Publicly available docket materials are available either electronically
through https://www.regulations.gov, or in hard copy at the EPA Docket
Center, EPA WJC West Building, Room Number 3334, 1301 Constitution Ave.
NW., Washington, DC. The Public Reading Room hours of operation are
8:30 a.m. to 4:30 p.m. Eastern Standard Time (EST), Monday through
Friday. The telephone number for the Public Reading Room is (202) 566-
1744, and the telephone number for the Air Docket is (202) 566-1742.
FOR FURTHER INFORMATION CONTACT: For questions about this final action,
contact Mr. Andrew Bouchard, Sector Policies and Programs Division
(E143-01), Office of Air Quality Planning and Standards (OAQPS), U.S.
Environmental Protection Agency, Research Triangle Park, North Carolina
27711; telephone number: (919) 541-4036; fax number: (919) 541-3470;
and email address: bouchard.andrew@epa.gov.
SUPPLEMENTARY INFORMATION:
Acronyms and Abbreviations. We use multiple acronyms and terms in
this notice. While this list may not be exhaustive, to ease the reading
of this notice and for reference purposes, the EPA defines the
following terms and acronyms here:
AMEL alternative means of emission limitation
Btu/scf British thermal units per standard cubic foot
CAA Clean Air Act
CBI confidential business information
CFR Code of Federal Regulations
CP Chem Chevron Phillips Chemical Company LP
EPA Environmental Protection Agency
Eqn equation
HAP hazardous air pollutants
HP high pressure
LFL lower flammability limit
LFLcz lower flammability limit of combustion zone gas
LFLvg lower flammability limit of flare vent gas
MPGF multi-point ground flare
NESHAP national emission standards for hazardous air pollutants
NHV net heating value
NHVcz net heating value of combustion zone gas
NHVvg net heating value of flare vent gas
NSPS new source performance standards
OAQPS Office of Air Quality Planning and Standards
scf standard cubic feet
VOC volatile organic compounds
Organization of This Document. The information in this notice is
organized as follows:
I. Background
A. Summary
B. Regulatory Flare Requirements and CP Chem's AMEL Request
II. Summary of Public Comments on CP Chem's AMEL Request
III. Final Notice of Approval of CP Chem's AMEL Request and Required
Operating Conditions
I. Background
A. Summary
In a Federal Register notice dated April 4, 2017, the EPA provided
public notice and solicited comment on CP Chem's AMEL request under the
CAA for the operation of an MPGF at an ethylene plant in Baytown,
Texas, and for the operation of an MPGF at a polyethylene plant in Old
Ocean, Texas (see 82 FR 16392).\1\ This action solicited comment on all
aspects of the AMEL request, including the operating conditions
specified in that action that are necessary to achieve a reduction in
emissions of volatile organic compounds (VOC) and organic hazardous air
pollutants (HAP) at least equivalent to the reduction in emissions
required by various standards in 40 CFR parts 60, 61, and 63 that apply
to emission sources that would be controlled by these MPGFs. These
standards incorporate the design and operating requirements for flares
in the General Provisions to parts 60 and 63 as part of the emission
reduction requirements. Because the two proposed MPGFs cannot meet the
velocity requirements in these General
[[Page 27823]]
Provisions, CP Chem requested an AMEL. In its request, CP Chem
demonstrates that the proposed AMEL for each of the two facilities
would achieve at least equivalent emissions reductions as flares that
meet the standards in the General Provisions.
---------------------------------------------------------------------------
\1\ The MPGFs at both the ethylene plant and polyethylene plant
will utilize pressure-assisted burners on all the high pressure (HP)
stages; however, the first two stages on the MPGF at the
polyethylene plant will also be steam-assisted.
---------------------------------------------------------------------------
This action provides a summary of the comments received as part of
the public review process, our response to those comments, and our
approval of the AMEL request received from CP Chem for use of MPGFs at
both their ethylene plant in Baytown, Texas, and polyethylene plant in
Old Ocean, Texas, along with the operating conditions they must follow
for demonstrating compliance with the approved AMEL.
B. Regulatory Flare Requirements and CP Chem's AMEL Request
CP Chem submitted a complete MPGF AMEL request, following the MPGF
AMEL framework that was published in the Federal Register (see 81 FR
23480, April 21, 2016), to the EPA on November 28, 2016. CP Chem sought
an AMEL to operate an MPGF for use during limited HP maintenance,
startup, and shutdown events, as well as during upset events at their
ethylene plant in Baytown, Texas. In addition, CP Chem sought an AMEL
to operate an MPGF during certain routine operations (i.e., the first
two stages only), as well as during periods of maintenance, startup,
shutdown, and upset at their polyethylene plant in Old Ocean, Texas. In
its request, CP Chem cited various regulatory requirements in 40 CFR
parts 60, 61, and 63 that will apply to the flare vent gas streams that
will be collected and routed to their MPGFs at each of these two
plants. See Table 1 for a list of regulations, by subparts, that CP
Chem has identified as applicable to the two plants described above.
These new source performance standards (NSPS) and national emissions
standards for hazardous air pollutants (NESHAP) require that flares
subject to these subparts meet the flare design and operating
requirements in the General Provisions of part 60 and 63, respectively
(i.e., 40 CFR 60.18(b) and 63.11(b)). CP Chem is requesting that the
EPA approve the AMEL to be used by each of the two plants for complying
with the flare requirements in the relevant subparts as specified in
Table 1.
Table 1--Summary of Applicable Rules that May Apply to Vent Streams Controlled by Multi-Point Ground Flares
----------------------------------------------------------------------------------------------------------------
Rule citation from
Applicable rules with vent streams CP chem CP chem Title 40 CFR that Provisions for
going to control device(s) ethylene plant polyethylene allow for use of a alternative means of
plant flare emission limitation
----------------------------------------------------------------------------------------------------------------
NSPS Subpart VV................... ............... X 60.482-10(d)........ 60.484(a)-(f).
NSPS Subpart VVa.................. X ............... 60.482-10a(d)....... 60.484a(a)-(f).
NSPS Subpart DDD.................. ............... X 60.562-1(a)(1)(i)(C) CAA section
111(h)(3).
NSPS Subpart NNN.................. X ............... 60.662(b)........... CAA section
111(h)(3).
NSPS Subpart RRR.................. X ............... 60.702(b)........... CAA section
111(h)(3).
NESHAP Subpart FF................. X ............... 61.349(a)(2)........ 61.353(a); also see
61.12(d).
NESHAP Subpart SS................. X ............... 63.982(b)........... CAA section
112(h)(3).
NESHAP Subpart UU................. X ............... 63.1034............. 63.1021(a)-(d).
NESHAP Subpart XX................. X ............... 63.1091............. 63.1097(b)(1).
* Note--This subpart
cross-references to
NESHAP subpart FF
above.
NESHAP Subpart YY................. X ............... Table 7 to Sec. 63.1113.
63.1103(e) cross-
references to
NESHAP subpart SS
above.
NESHAP Subpart FFFF............... ............... X 63.2450(e)(2)....... 63.2545(b)(1); also
see 63.6(g).
----------------------------------------------------------------------------------------------------------------
The provisions in each NSPS and NESHAP cited in Table 1 that ensure
flares meet certain specific requirements when used to satisfy the
requirements of the NSPS or NESHAP were established as work practice
standards pursuant to CAA sections 111(h)(1) or 112(h)(1). For
standards established according to these provisions, CAA sections
111(h)(3) and 112(h)(3) allow the EPA to permit the use of an AMEL by a
source if, after notice and opportunity for comment,\2\ it is
established to the Administrator's satisfaction that such AMEL will
achieve emission reduction at least equivalent to the reduction
required under the CAA section 111(h)(1) or 112(h)(1) standard. As
noted in Table 1, many of the NSPS and NESHAP in the table above also
include specific regulatory provisions allowing sources to request an
AMEL.
---------------------------------------------------------------------------
\2\ CAA section 111(h)(3) specifically requires that the EPA
provide an opportunity for a public hearing. The EPA provided an
opportunity for a public hearing in the April 4, 2017, Federal
Register action. However, no public hearing was requested.
---------------------------------------------------------------------------
CP Chem sought such an AMEL request because their MPGFs are not
designed to operate below the maximum permitted velocity requirements
for flares in the General Provisions of 40 CFR parts 60 and 63. CP Chem
provided information that the MPGFs they propose to use will achieve a
reduction in emissions at least equivalent to the reduction in
emissions for flares complying with these General Provisions
requirements (for further background information on the regulatory
flare requirements and a facility's ability to request an AMEL, see 82
FR 16392-16399, April 4, 2017).
II. Summary of Public Comments on CP Chem's AMEL Request
The EPA received eight public comments on this action. The public
comments received fell into one of the following three bins: (1)
General support for CP Chem's AMEL request, (2) general opposition to
CP Chem's AMEL request, and (3) general comments outside the scope of
the action. None of the comments raised issues or otherwise mentioned
any specific aspect of the MPGFs (including any operating condition)
proposed for either of the two plants or the EPA's authority to approve
these AMEL under the CAA. None of the commenters who opposed the EPA's
proposal to approve the AMEL with the operating conditions specified in
the April 4, 2017, action asserted that the EPA lacked authority to
approve the AMEL or that the AMEL would not achieve at least equivalent
[[Page 27824]]
emissions reductions as flares that meet the standards in the General
Provisions. Additionally, the one commenter who generally opposed CP
Chem's AMEL request did not provide any substantive reason for why they
opposed the request, other than to note that existing regulations
should be followed. Therefore, no changes have been made to the
operating conditions specified in the April 4, 2017, action.
III. Final Notice of Approval of CP Chem's AMEL Request and Required
Operating Conditions
Based on information the EPA received from CP Chem and the comments
received through the public comment period, we are approving CP Chem's
request for an AMEL and establishing operating requirements for the
MPGF at CP Chem's ethylene plant in Baytown, Texas, and the MPGF at CP
Chem's polyethylene plant in Old Ocean, Texas. The operating conditions
for CP Chem's MPGF that will achieve a reduction in emissions at least
equivalent to the reduction in emissions being controlled by a steam-
assisted, air-assisted, or non-assisted flare complying with the
requirements of either 40 CFR 63.11(b) or 40 CFR 60.18(b) are as
follows: (1) The MPGF system for all HP stages at CP Chem's ethylene
plant and for all HP stages excluding stage 1 and 2 for CP Chem's
polyethylene plant must be designed and operated such that the net
heating value of the combustion zone gas (NHVcz) is greater than or
equal to 800 British thermal units per standard cubic foot (Btu/scf) or
lower flammability limit of the combustion zone gas (LFLcz) is less
than or equal to 6.5 percent by volume. The MPGF system for HP stages 1
and 2 of CP Chem's polyethlene plant must be designed and operated such
that the NHVcz is greater than or equal to 600 Btu/scf or the LFLcz is
less than or equal to 8.0 percent by volume. Owners or operators must
demonstrate compliance with the NHVcz or LFLcz metric by continuously
complying with a 15-minute block average. Owners or operators must
calculate and monitor for the NHVcz or LFLcz according to the
following:
(a) Calculation of NHVcz
(i) The owner or operator shall determine the net heating value of
flare vent gas (NHVvg) by following the requirements of (1)(d)-(1)(e)
below. If an owner or operator elects to use a monitoring system
capable of continuously measuring (i.e., at least once every 15
minutes), calculating, and recording the individual component
concentrations present in the flare vent gas, NHVvg shall be calculated
using the following equation:
[GRAPHIC] [TIFF OMITTED] TN19JN17.000
Where:
NHVvg = Net heating value of flare vent gas, Btu/scf. Flare vent gas
means all gas found just prior to the MPGF. This gas includes all
flare waste gas (i.e., gas from facility operations that is directed
to a flare for the purpose of disposing of the gas), flare sweep
gas, flare purge gas and flare supplemental gas, but does not
include pilot gas.
i = Individual component in flare vent gas.
n = Number of components in flare vent gas.
xi = Concentration of component i in flare vent gas, volume
fraction.
NHVi = Net heating value of component i determined as the heat of
combustion where the net enthalpy per mole of offgas is based on
combustion at 25 degrees Celsius ([deg]C) and 1 atmosphere (or
constant pressure) with water in the gaseous state from values
published in the literature, and then the values converted to a
volumetric basis using 20 [deg]C for ``standard temperature.'' Table
2 summarizes component properties including net heating values.
(ii) For all MPGF HP stages at CP Chem's ethylene plant and for all
MPGF HP stages, excluding stage 1 and 2 for CP Chem's polyethylene
plant, NHVvg = NHVcz.
(iii) For HP stages 1 and 2 of CP Chem's polyethlene plant MPGF,
NHVcz shall be calculated using the following equation:
[GRAPHIC] [TIFF OMITTED] TN19JN17.001
Where:
NHVcz = Net heating value of combustion zone gas, Btu/scf.
NHVvg = Net heating value of flare vent gas for the 15-minute block
period as determined according to (1)(a)(i) above, Btu/scf.
Qvg = Cumulative volumetric flow of flare vent gas during the 15-
minute block period, standard cubic feet (scf).
Qs = Cumulative volumetric flow of total assist steam during the 15-
minute block period, scf.
(b) Calculation of LFLcz
(i) The owner or operator shall determine LFLcz from compositional
analysis data by using the following equation:
[GRAPHIC] [TIFF OMITTED] TN19JN17.002
Where:
LFLvg = Lower flammability limit of flare vent gas, volume percent
(vol %).
n = Number of components in the vent gas.
i = Individual component in the vent gas.
Xi = Concentration of component i in the vent gas, vol %.
LFLi = Lower flammability limit of component i as determined using
values published by the U.S. Bureau of Mines (Zabetakis, 1965), vol
%. All inerts, including nitrogen, are assumed to have an infinite
LFL (e.g., LFLN2 = [infin], so that XN2/LFLN2 = 0). LFL values for
common flare vent gas components are provided in Table 2.
(ii) For all MPGF HP stages at CP Chem's ethylene plant and for all
MPGF HP stages, excluding stages 1 and 2 for CP Chem's polyethylene
plant, LFLvg = LFLcz.
(iii) For HP stages 1 and 2 of CP Chem's polyethlene plant MPGF,
LFLcz shall be calculated using the following equation:
[[Page 27825]]
[GRAPHIC] [TIFF OMITTED] TN19JN17.003
Where:
LFLcz = Lower flammability limit of combustion zone gas, vol %.
LFLvg = Lower flammability limit of flare vent gas, vol %.
Qvg = Cumulative volumetric flow of flare vent gas during the 15-
minute block period, scf.
Qs = Cumulative volumetric flow of total assist steam during the 15-
minute block period, scf.
(c) The operator of an MPGF system shall install, operate,
calibrate, and maintain a monitoring system capable of continuously
measuring the volumetric flow rate of flare vent gas (Qvg) and the
volumetric flow rate of total assist steam (Qs).
(i) The flow rate monitoring systems must be able to correct for
the temperature and pressure of the system and output parameters in
standard conditions (i.e., a temperature of 20 [deg]C (68 [deg]F) and a
pressure of 1 atmosphere).
(ii) Mass flow monitors may be used for determining volumetric flow
rate of flare vent gas provided the molecular weight of the flare vent
gas is determined using compositional analysis so that the mass flow
rate can be converted to volumetric flow at standard conditions using
the following equation:
[GRAPHIC] [TIFF OMITTED] TN19JN17.004
Where:
Qvol = Volumetric flow rate, scf per second.
Qmass = Mass flow rate, pounds per second.
385.3 = Conversion factor, scf per pound-mole.
MWt = Molecular weight of the gas at the flow monitoring location,
pounds per pound-mole.
(iii) Mass flow monitors may be used for determining volumetric
flow rate of total assist steam. Use Equation 5 to convert mass flow
rates to volumetric flow rates. Use a molecular weight of 18 pounds per
pound-mole for total assist steam.
(d) The operator shall install, operate, calibrate, and maintain a
monitoring system capable of continuously measuring (i.e., at least
once every 15 minutes), calculating, and recording the individual
component concentrations present in the flare vent gas or the owner or
operator shall install, operate, calibrate, and maintain a monitoring
system capable of continuously measuring, calculating, and recording
NHVvg (in Btu/scf).
(e) For each measurement produced by the monitoring system used to
comply with (1)(d) above, the operator shall determine the 15-minute
block average as the arithmetic average of all measurements made by the
monitoring system within the 15-minute period.
(f) The operator must follow the calibration and maintenance
procedures according to Table 3. Maintenance periods, instrument
adjustments, or checks to maintain precision and accuracy and zero and
span adjustments may not exceed 5 percent of the time the flare is
receiving regulated material.
Table 2--Individual Component Properties
----------------------------------------------------------------------------------------------------------------
NHV (British
MW (pounds per thermal units
Component Molecular formula pound-mole) per standard LFL (volume %)
cubic foot)
----------------------------------------------------------------------------------------------------------------
Acetylene.............................. C2H2................... 26.04 1,404 2.5
Benzene................................ C6H6................... 78.11 3,591 1.3
1,2-Butadiene.......................... C4H6................... 54.09 2,794 2.0
1,3-Butadiene.......................... C4H6................... 54.09 2,690 2.0
iso-Butane............................. C4H10.................. 58.12 2,957 1.8
n-Butane............................... C4H10.................. 58.12 2,968 1.8
cis-Butene............................. C4H8................... 56.11 2,830 1.6
iso-Butene............................. C4H8................... 56.11 2,928 1.8
trans-Butene........................... C4H8................... 56.11 2,826 1.7
Carbon Dioxide......................... CO2.................... 44.01 0 [infin]
Carbon Monoxide........................ CO..................... 28.01 316 12.5
Cyclopropane........................... C3H6................... 42.08 2,185 2.4
Ethane................................. C2H6................... 30.07 1,595 3.0
Ethylene............................... C2H4................... 28.05 1,477 2.7
Hydrogen............................... H2..................... 2.02 274 4.0
Hydrogen Sulfide....................... H2S.................... 34.08 587 4.0
Methane................................ CH4.................... 16.04 896 5.0
Methyl-Acetylene....................... C3H4................... 40.06 2,088 1.7
Nitrogen............................... N2..................... 28.01 0 [infin]
Oxygen................................. O2..................... 32.00 0 [infin]
Pentane+ (C5+)......................... C5H12.................. 72.15 3,655 1.4
Propadiene............................. C3H4................... 40.06 2,066 2.16
Propane................................ C3H8................... 44.10 2,281 2.1
Propylene.............................. C3H6................... 42.08 2,150 2.4
Water.................................. H2O.................... 18.02 0 [infin]
----------------------------------------------------------------------------------------------------------------
[[Page 27826]]
Table 3--Accuracy and Calibration Requirements
------------------------------------------------------------------------
Accuracy Calibration
Parameter requirements requirements
------------------------------------------------------------------------
Flare Vent Gas Flow Rate...... 20 Performance
percent of flow evaluation
rate at biennially (every 2
velocities years) and following
ranging from 0.1 any period of more
to 1 foot per than 24 hours
second. throughout which the
5 flow rate exceeded
percent of flow the maximum rated
rate at flow rate of the
velocities sensor, or the data
greater than 1 recorder was off
foot per second. scale. Checks of all
mechanical
connections for
leakage monthly.
Visual inspections
and checks of system
operation every 3
months, unless the
system has a
redundant flow
sensor.
Select a
representative
measurement location
where swirling flow
or abnormal velocity
distributions due to
upstream and
downstream
disturbances at the
point of measurement
are minimized.
Flow Rate for All Flows Other 5 Conduct a flow sensor
Than Flare Vent Gas. percent over the calibration check at
normal range of least biennially
flow measured or (every two years);
1.9 liters per conduct a
minute (0.5 calibration check
gallons per following any period
minute), of more than 24
whichever is hours throughout
greater, for which the flow rate
liquid flow. exceeded the
manufacturer's
specified maximum
rated flow rate or
install a new flow
sensor.
5 At least quarterly,
percent over the inspect all
normal range of components for
flow measured or leakage, unless the
280 liters per continuous parameter
minute (10 cubic monitoring system
feet per has a redundant flow
minute), sensor.
whichever is
greater, for gas
flow.
5 Record the results of
percent over the each calibration
normal range check and
measured for inspection.
mass flow. Locate the flow
sensor(s) and other
necessary equipment
(such as
straightening vanes)
in a position that
provides
representative flow;
reduce swirling flow
or abnormal velocity
distributions due to
upstream and
downstream
disturbances.
Pressure...................... 5 Review pressure
percent over the sensor readings at
normal range least once a week
measured or 0.12 for straight-line
kilopascals (0.5 (unchanging)
inches of water pressure and perform
column), corrective action to
whichever is ensure proper
greater. pressure sensor
operation if
blockage is
indicated.
Performance
evaluation annually
and following any
period of more than
24 hours throughout
which the pressure
exceeded the maximum
rated pressure of
the sensor, or the
data recorder was
off scale. Checks of
all mechanical
connections for
leakage monthly.
Visual inspection of
all components for
integrity,
oxidation, and
galvanic corrosion
every 3 months,
unless the system
has a redundant
pressure sensor.
Select a
representative
measurement location
that minimizes or
eliminates pulsating
pressure, vibration,
and internal and
external corrosion.
Net Heating Value by 2 Calibration
Calorimeter. percent of span. requirements should
follow
manufacturer's
recommendations at a
minimum.
Temperature control
(heated and/or
cooled as necessary)
the sampling system
to ensure proper
year-round
operation.
Where feasible,
select a sampling
location at least 2
equivalent diameters
downstream from and
0.5 equivalent
diameters upstream
from the nearest
disturbance. Select
the sampling
location at least 2
equivalent duct
diameters from the
nearest control
device, point of
pollutant
generation, air in-
leakages, or other
point at which a
change in the
pollutant
concentration or
emission rate
occurs.
Net Heating Value by Gas As specified in Follow the procedure
Chromatograph. Performance in PS 9 of 40 CFR
Specification part 60, appendix B,
(PS) 9 of 40 CFR except that a single
part 60, daily mid-level
appendix B. calibration check
can be used (rather
than triplicate
analysis), the multi-
point calibration
can be conducted
quarterly (rather
than monthly), and
the sampling line
temperature must be
maintained at a
minimum temperature
of 60 [deg]C (rather
than 120 [deg]C).
------------------------------------------------------------------------
(2) The MPGF system shall be operated with a flame present at all
times when in use. Each burner on HP stages 1 and 2 of CP Chem's
polyethylene plant MPGF must have a pilot with a continuously lit pilot
flame. Additionally, each HP stage of CP Chem's ethylene plant MPGF and
all HP stages, excluding stages 1 and 2 for CP Chem's polyethylene
plant MPGF, must have at least two pilots with a continuously lit pilot
flame. Each pilot flame must be continuously monitored by a
thermocouple or any other equivalent device used to detect the presence
of a flame. The time, date, and duration of any complete loss of pilot
flame on any of the individual MPGF burners on HP stages 1 and 2 of CP
Chem's polyethylene plant MPGF, on any of the HP stages of CP Chem's
ethylene plant MPGF, and on any of the HP stages, excluding stages 1
and 2 of CP Chem's polyethylene plant MPGF, must be recorded. Each
monitoring device must be maintained or replaced at a frequency in
accordance with the manufacturer's specifications.
(3) The MPGF system shall be operated with no visible emissions
except for periods not to exceed a total of 5 minutes during any 2
consecutive hours. A video camera that is capable of continuously
recording (i.e., at least one frame every 15 seconds with time and date
stamps) images of the flare flame and a reasonable distance above the
flare flame at an angle suitable for visible emissions observations
must be used to demonstrate compliance with this requirement. The owner
or operator must provide real-time video surveillance camera output to
the control room or other continuously manned location where the video
camera images may be viewed at any time.
(4) The operator of an MPGF system shall install and operate
pressure monitor(s) on the main flare header, as well as a valve
position indicator monitoring system capable of monitoring and
recording the position for each staging valve to ensure that the MPGF
operates within the range of tested conditions or within the range of
the manufacturer's specifications. The
[[Page 27827]]
pressure monitor shall meet the requirements in Table 3. Maintenance
periods, instrument adjustments or checks to maintain precision and
accuracy, and zero and span adjustments may not exceed 5 percent of the
time the flare is receiving regulated material.
(5) Recordkeeping Requirements.
(a) All data must be recorded and maintained for a minimum of 3
years or for as long as required under applicable rule subpart(s),
whichever is longer.
(6) Reporting Requirements.
(a) The information specified in sections III (6)(b) and (c) of
this document below must be reported in the timeline specified by the
applicable rule subpart(s) for which the MPGF will control emissions.
(b) Owners or operators shall include the following information in
their initial Notification of Compliance status report:
(i) Specify flare design as a pressure-assisted MPGF. CP Chem's
polyethylene plant shall also clearly note that HP stages 1 and 2 are
also steam-assisted.
(ii) All visible emission readings, NHVcz and/or LFLcz
determinations, and flow rate measurements. For MPGF, exit velocity
determinations do not need to be reported as the maximum permitted
velocity requirements in the General Provisions at 40 CFR 60.18(b) and
40 CFR 63.11(b) are not applicable.
(iii) All periods during the compliance determination when a
complete loss of pilot flame on any stage of MPGF burners occurs, and,
for HP stages 1 and 2 of CP Chem's polyethylene plant MPGF, all periods
during the compliance determination when a complete loss of pilot flame
on an individual burner occurs.
(iv) All periods during the compliance determination when the
pressure monitor(s) on the main flare header show the MPGF burners
operating outside the range of tested conditions or outside the range
of the manufacturer's specifications.
(v) All periods during the compliance determination when the
staging valve position indicator monitoring system indicates a stage of
the MPGF should not be in operation and is or when a stage of the MPGF
should be in operation and is not.
(c) The owner or operator shall notify the Administrator of periods
of excess emissions in their Periodic Reports. These periods of excess
emissions shall include:
(i) Records of each 15-minute block for all HP stages of CP Chem's
ethylene plant MPGF and for all HP stages excluding stages 1 and 2 of
CP Chem's polyethylene plant MPGF during which there was at least 1
minute when regulated material was routed to the MPGF and a complete
loss of pilot flame on a stage of burners occurred, and, for HP stages
1 and 2 of CP Chem's polyethylene plant MPGF, records of each 15-minute
block during which there was at least 1 minute when regulated material
was routed to the MPGF and a complete loss of pilot flame on an
individual burner occurred.
(ii) Records of visible emissions events (including the time and
date stamp) that exceed more than 5 minutes in any 2-hour consecutive
period.
(iii) Records of each 15-minute block period for which an
applicable combustion zone operating limit (i.e., NHVcz or LFLcz) is
not met for the MPGF when regulated material is being combusted in the
flare. Indicate the date and time for each period, the NHVcz and/or
LFLcz operating parameter for the period and the type of monitoring
system used to determine compliance with the operating parameters
(e.g., gas chromatograph or calorimeter). For CP Chem's polyethylene
plant MPGF, also indicate which HP stages were in use.
(iv) Records of when the pressure monitor(s) on the main flare
header show the MPGF burners are operating outside the range of tested
conditions or outside the range of the manufacturer's specifications.
Indicate the date and time for each period, the pressure measurement,
the stage(s) and number of MPGF burners affected, and the range of
tested conditions or manufacturer's specifications.
(v) Records of when the staging valve position indicator monitoring
system indicates a stage of the MPGF should not be in operation and is
or when a stage of the MPGF should be in operation and is not. Indicate
the date and time for each period, whether the stage was supposed to be
open, but was closed or vice versa, and the stage(s) and number of MPGF
burners affected.
Dated: June 1, 2017.
Stephen Page,
Director, Office of Air Quality Planning and Standards.
[FR Doc. 2017-12688 Filed 6-16-17; 8:45 am]
BILLING CODE 6560-50-P