Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 112 - CONTROL OF AIR POLLUTION FROM SULFUR COMPOUNDS › Subchapter F - REQUIREMENTS IN THE HUTCHINSON COUNTY NONATTAINMENT AREA › Division 4 - REQUIREMENTS FOR THE PHILLIPS 66 BORGER REFINERY › Section 112.233 - Monitoring Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a) Separately for
					 29 FCCU Stack (EPN 29P1) and 40 FCCU Stack (EPN 40P1), the owner or operator
					 shall 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 or provide exemptions for certain activities; 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 temperature monitor with a minimum accuracy of ±1%;
					 convert data from all monitoring devices to a common concentration, flow,
					 pressure, and temperature measurement basis and calculate and record 15-minute
					 and subsequent block one-hour average sulfur dioxide
					 (SO2) emissions.
(b) Separately for SRU Incinerator (EPN 34I1)
					 and SCOT Unit Incinerator (EPN 43I1), the owner or operator shall install,
					 operate, calibrate, and maintain a CEMS as specified in 40 Code of Federal
					 Regulations (CFR) §60.106a(a), regardless of whether these provisions
					 otherwise apply; use an analyzer with an accuracy of plus or minus
					 (±)2.5%, a dedicated totalizing gas flow measurement system with an
					 accuracy of ±5%, and temperature monitor with an accuracy of ±1%;
					 convert data from all monitoring devices to a common concentration, flow,
					 pressure, and temperature measurement basis and calculate and record 15-minute
					 and subsequent block one-hour average SO2
					 emissions.
(c) The owner or
					 operator shall install, operate, calibrate, and maintain dedicated
					 instrumentation according to the manufacturers' specifications to continuously
					 and separately monitor the flow rate and the total sulfur concentration of the
					 inlet gas streams of EPN 66FL1, EPN 66FL2, EPN 66FL3, and EPN 66FL12, in
					 accordance with the
					 40
					 CFR §
												60.107a(e) and
					 (f)(1), regardless of whether these
					 provisions otherwise apply or provide an exemption for any flare activities, as
					 follows:
(1) 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%;
(2) monitor the temperature of gases routed
					 to each flare using a separate temperature measurement device with an accuracy
					 of ±1%; and
(3) monitor the
					 sulfur content of the combined inlet flare gas stream as follows:
(A) using a separate dedicated analyzer
					 capable of accurately measuring and recording total sulfur (including
					 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 applicability or exemptions, and determine hourly
					 SO2 emissions using the following equation; or
Attached Graphic
(B) 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
					 40
					 CFR §
														60.107a(e)(2)
					 methodology regardless of applicability or exemptions, and calculate the
					 SO2 emissions from each flare for each operating hour
					 using the following equation:
Attached Graphic