Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 112 - CONTROL OF AIR POLLUTION FROM SULFUR COMPOUNDS › Subchapter E - REQUIREMENTS IN THE HOWARD COUNTY NONATTAINMENT AREA › Division 1 - REQUIREMENTS FOR THE ALON USA BIG SPRING REFINERY › Section 112.103 - Monitoring Requirements

Current through Reg. 49, No. 28; July 12, 2024
The owner or operator shall continuously monitor
						equipment subject to sulfur dioxide (SO2) emission
						limits or standards in § 112.102 of this title (relating to Control
						Requirements) as follows:
(1) install,
					 operate, calibrate, and maintain a continuous emissions monitoring system
					 (CEMS) as specified in 40 Code of Federal Regulations (CFR)
					 §60.105a(g)(1), (2) and (5) regardless of whether these provisions
					 otherwise apply; use an analyzer with a minimum analyzer accuracy of plus or
					 minus (±) 2.5%, a dedicated totalizing gas flow measurement system with
					 a minimum measurement accuracy of ±5%, and a temperature monitor with a
					 minimum accuracy of ±1%; convert data from all monitoring devices to a
					 common concentration, flow, pressure, and temperature basis, and calculate and
					 record 15-minute and subsequent block one-hour average
					 SO2 emissions from FCCU ESP Stack (EPN
					 06ESPPCV);
(2) for the North East
					 Flare (EPN 14NEASTFLR), Crude Flare (EPN 02CRUDEFLR), Reformer Flare (EPN
					 05REFMFLR), and South Flare (EPN 16SOUTHFLR), install, operate, calibrate, and
					 maintain designated instrumentation according to the manufacturers'
					 specifications to continuously monitor the gas stream flare inlet temperature,
					 the total inlet gas flow rate, and the total sulfur concentration as specified
					 in
					 40
					 CFR §
												60.107a(e) and
					 (f)(1), regardless of whether these
					 provisions otherwise apply or exempt flare activities, as follows:
(A) monitor the total volumetric flow rate of
					 gases routed to each flare using a separate dedicated totalizing gas flow meter
					 with an accuracy of ±5%;
(B)
					 monitor the temperature of gases routed to each flare using a separate
					 temperature measurement device with an accuracy of ±1%; and
(C) monitor the sulfur content of the
					 combined inlet flare gas stream as follows:
(i) using a separate dedicated analyzer
					 capable of accurately measuring and recording total sulfur (including sulfur
					 dioxide (SO2), hydrogen sulfide
					 (H2S), and organic sulfur compounds levels) with an
					 accuracy of ±5% on a continuous basis, the sulfur concentration must be
					 determined in accordance
					 40
					 CFR §
														60.107a(e)(1)
					 regardless of whether these requirements are otherwise applicable or exempt the
					 flare, and hourly SO2 emissions must be determined using
					 the following equation; or
Attached Graphic
(ii) using a separate dedicated
					 analyzer capable of accurately measuring and recording
					 H2S to an accuracy of ±5% on a continuous basis,
					 determine the H2S concentration in the flared gas
					 stream, derive an inlet flare gas total sulfur concentration for each monitored
					 hourly H2S concentration in accordance with
					 40
					 CFR §
														60.107a(e)(2)
					 methodology regardless of whether these requirements are otherwise applicable
					 or exempt the flare, and calculate the SO2 emissions for
					 each operating hour using the following equation:
Attached Graphic