Current through Register Vol. 50, No. 9, September 20, 2024
A.
Applicability. The provisions of this rule shall apply to the owner or operator
of any glycol dehydrator that:
1. is not
required to install controls according to LAC:33.III.Chapter 51; or
2. is not required to install controls
according to LAC:33.III.2115.
B. Requirements. Any glycol dehydrator not
exempt under Subsection C of this Section shall have a control device with the
following efficiency:
1. an existing glycol
dehydrator, constructed prior to October 20, 1994, shall:
a. demonstrate to the administrative
authority, using methods found in Subsection D of this Section, a 70 percent or
greater reduction of still-column emissions; or
b. if the control device is a condenser,
annually achieve an average final exhaust temperature less than
110°F;
2. a new glycol
dehydrator, constructed on or after October 20, 1994, and not subject to
LAC:33.III.2115 or Chapter 51, shall ensure an 85 percent or greater reduction
of still-column emissions using approved methods found in Subsection D of this
Section; and
3. a glycol dehydrator
using a flare or other combustion device as a control device shall be deemed to
have equivalent efficiencies to the control efficiencies of Subparagraph B.1.a
and Paragraph B.2 of this Section provided the flare or other combustion device
is permitted in accordance with LAC 33:III.Chapter 5. Glycol dehydrators using
a flare as a control device shall ensure destruction of emissions to the flare
stack by maintaining the heat content of the flare gas above 300 Btu/scf and by
documenting daily visual observations of the continuous presence of a
flame.
C. Exemptions. A
glycol dehydrator is exempt from the requirements of this Section if any of the
following conditions are met:
1. the owner
can demonstrate to the administrative authority that the glycol dehydrator
operates fewer than 200 hours per year; or
2. the owner can demonstrate to the
administrative authority, using method or methods found in Subsection D of this
Section, that the total uncontrolled VOC emissions from the glycol dehydrator
are not in excess of 9 tons per year. Once the glycol dehydrator becomes an
affected unit, it does not revert to an exempted unit when the emissions drop
below 9 tons per year, unless otherwise exempted by the approval of the
administrative authority.
D. Test Methods. The emissions from glycol
dehydrators affected by Subsection A of this Section shall be determined using
the following methods, as appropriate:
1.
rich/lean glycol mass balance using pressurized sample, for determining
uncontrolled emissions;
2. total
capture stack condensation;
3.
partial stack condensation;
4.
conventional stack measurements using Methods 18 and 25 ( 40 CFR Part 60,
Appendix A, as incorporated by reference at LAC 33:III.3003) for determining
volatile organic compound emissions; or
5. alternative methods of testing as approved
by the administrative authority.
E. Compliance Schedule. All facilities
affected by this Section shall be in compliance as soon as practicable, but in
no event later than October 20, 1996, except those facilities required to
submit a Part 70 permit application. Facilities required to submit a Part 70
permit application shall be in compliance by April 20, 1996.
F. Recordkeeping. The owner or operator of
any facility subject to this rule shall maintain the following information on
the premises, or an alternative location approved by the administrative
authority for at least five years and shall make the following information
available to representatives of the Louisiana Department of Environmental
Quality upon request:
1. a record of the
results of any testing conducted in accordance with Subsection D of this
Section;
2. the date of any
maintenance and repair of the required control device and the duration of
uncontrolled emissions during such activities;
3. glycol units subject to Subparagraph B.1.b
of this Section shall maintain:
a. a record of
final exhaust temperature and time observed recorded twice a week on different
days during daylight hours; and
b.
a record of all temperature exceedances greater than or equal to 120° F, the
date of each temperature exceedance, and a brief explanation describing the
circumstances of the temperature exceedance; and
4. glycol units for which exemptions are
being claimed shall maintain:
a. a record of
total hours of operation on an annual basis if claiming an exemption under
Paragraph C.1 of this Section; or
b. a record of actual throughput per day and
the glycol circulation rate if claiming an exemption under Paragraph C.2 of
this Section.
G. Reporting Requirements
1. The owner or operator of a facility shall
submit to the Office of Environmental Services a permit application after
installation of controls unless exempt from permitting pursuant to LAC
33:III.Chapter 5.
2. If no permit
is required pursuant to LAC 33:III.Chapter 5, the owner or operator of a
facility shall submit to the Office of Environmental Services a new or updated
emission inventory questionnaire after installation of controls.
AUTHORITY NOTE:
Promulgated in accordance with
R.S.
30:2054.
