Current through Register Vol. 48, No. 39, March 25, 2024
Subpart 1.
Fluid catalytic cracking unit catalyst regenerators.
Fluid catalytic cracking unit catalyst regenerators:
A. Opacity.
(1) The owner or operator of any new fluid
catalytic unit catalyst regenerator and the owner or operator of an existing
fluid catalytic cracking unit catalyst regenerator for fluid bed catalyst
cracking units of greater than 20,000 barrels per day fresh feed capacity shall
install, calibrate, maintain, and operate a continuous monitoring system for
the measurement of opacity of emissions discharged into the atmosphere from the
regenerator.
(2) The continuous
monitoring system shall be spanned at 60, 70, or 80 percent opacity.
B. Coke burn-off. The average coke
burn-off rate (thousands of pounds per hour or thousands of kilograms per hour)
and hours of operation of any fluid catalytic cracking unit catalyst
regenerator shall be recorded daily.
Subp. 2.
Fuel gas combustion
devices.
Fuel gas combustion devices:
A. Sulfur dioxide.
(1) The owner or operator of a new fuel gas
combustion device at a petroleum refinery shall install, calibrate, maintain,
and operate a continuous monitoring system for the measurement of sulfur
dioxide in the gases discharged into the atmosphere.
(2) The pollutant gas used to prepare
calibration gas mixtures and for calibration checks shall be sulfur dioxide
(SO2).
(3)
The span shall be set at 100 ppm.
(4) Reference Method 6 shall be used for
conducting monitoring system performance specifications.
(5) For the purpose of reports under part
7017.1110, subpart
2, periods of excess
emissions that shall be reported are defined as any six-hour period during
which the average emissions (arithmetic average of six continuous one-hour
periods) of sulfur dioxide as measured by a continuous monitoring system exceed
the applicable standards of performance in part
7011.1410.
B. Hydrogen sulfide. The owner or operator of
a new fuel gas combustion device at a petroleum refinery may elect to install a
continuous monitoring system for the measurement of hydrogen sulfide in the
fuel gas instead of the sulfur dioxide monitor described in item A. The owner
or operator shall notify the commissioner in writing of such election. The
owner or operator who elects to install the hydrogen sulfide monitor shall not
be required to do so until monitoring requirements for such a system are
promulgated; provided, however, the commissioner may require the installation
of a sulfur dioxide monitor under the provisions of part
7017.1006.
Subp. 3.
Incinerator waste heat
boilers.
The owner or operator of any fluid catalytic cracking unit
catalyst regenerator at a petroleum refinery which utilizes an
incinerator-waste heat boiler to combust the exhaust gases from the catalyst
regenerator shall record daily the rate of combustion of liquid or solid fossil
fuels (gallons per hour or liters per hour, pounds per hour or kilograms per
hour) and the hours of operation during which liquid or solid fossil fuels are
combusted in the incinerator-waste heat boiler.
