Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 117 - CONTROL OF AIR POLLUTION FROM NITROGEN COMPOUNDS › Subchapter B - COMBUSTION CONTROL AT MAJOR INDUSTRIAL, COMMERCIAL, AND INSTITUTIONAL SOURCES IN OZONE NONATTAINMENT AREAS › Division 3 - HOUSTON-GALVESTON-BRAZORIA OZONE NONATTAINMENT AREA MAJOR SOURCES › Section 117.330 - Operating Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a) The owner
					 or operator shall operate any unit subject to the emission specifications of
					 §
											117.305
					 of this title (relating to Emission Specifications for Reasonably Available
					 Control Technology (RACT)) in compliance with those limitations.
(b) The owner or operator shall operate any
					 unit subject to the plant-wide emission specification of §
											117.315
					 of this title (relating to Alternative Plant-Wide Emission Specifications) such
					 that the assigned maximum nitrogen oxides (NOX) emission
					 rate for each unit expressed in units of the applicable emission limit and
					 averaging period, is in accordance with the list approved by the executive
					 director pursuant to §
											117.352
					 of this title (relating to Final Control Plan Procedures for Reasonably
					 Available Control Technology).
(c)
					 The owner or operator shall operate any unit subject to the source cap emission
					 limits of §
											117.323 of
					 this title (relating to Source Cap) in compliance with those
					 limitations.
(d) All units subject
					 to the emission limitations of §§
											117.305,
					 117.315,
					 or
					 117.323 of
					 this title must be operated so as to minimize NOX
					 emissions, consistent with the emission control techniques selected, over the
					 unit's operating or load range during normal operations. Such operational
					 requirements include the following.
(1) Each
					 boiler, except for wood-fired boilers, must be operated with oxygen
					 (O2), carbon monoxide (CO), or fuel trim.
(2) Each boiler and process heater controlled
					 with forced flue gas recirculation (FGR) to reduce NOX
					 emissions must be operated such that the proportional design rate of FGR is
					 maintained, consistent with combustion stability, over the operating
					 range.
(3) Each boiler and process
					 heater controlled with induced draft FGR to reduce NOX
					 emissions must be operated such that the operation of FGR over the operating
					 range is not restricted by artificial means.
(4) Each unit controlled with steam or water
					 injection must be operated such that injection rates are maintained to limit NO
					 X concentrations to less than or equal to the NO
					 X concentrations achieved at maximum rated capacity
					 (corrected to 15% O2 on a dry basis for stationary gas
					 turbines).
(5) Each unit controlled
					 with post-combustion control techniques must be operated such that the reducing
					 agent injection rate is maintained to limit NOX
					 concentrations to less than or equal to the NOX
					 concentrations achieved at maximum rated capacity.
(6) Each stationary internal combustion
					 engine controlled with nonselective catalytic reduction must be equipped with
					 an automatic air-fuel ratio (AFR) controller that operates on exhaust
					 O2 or CO control and maintains AFR in the range required
					 to meet the engine's applicable emission limits.
(7) Each stationary internal combustion
					 engine must be checked for proper operation of the engine according to §
												117.8140(b)
					 of this title (relating to Emission Monitoring for Engines).