analysis for CO will focus on combustion units: the two modified reformers and the proposed new No. 2 Urea Plant boiler. CO emissions from combustion units are a function of oxygen availability (excess air), flame temperature, residence time at flame temperature, combustion zone design, and turbulence. Alternative CO control methods include exhaust gas cleanup methods such as catalytic oxidation, and front-end methods such as combustion control wherein CO formation is suppressed within the combustors. A search of EPA’s RBLC follows. It was noted that only two BACT determinations relied on an oxidative catalyst, while all others relied on good combustion. Non-feasibility of oxidative catalysts will be discussed later. Natural Gas Fired Primary Boilers > 250 MMBTUH Carbon Monoxide – Permit RBLC Facility State Issuance BACT Limit ID Date Good combustion FL-0350 Port Dolphin Energy Florida 12/01/11 practices, 0.015 lb/MMBTU CO Good combustion IA-0105 Iowa Fertilizer Iowa 10/26/12 practices, 0.0013 lb/MMBTU CO Oxidation catalyst, IA-0106 CF Industries Port Neal Iowa 7/12/13 – 0.0013 lb/MMBTU Good design and proper LA-0231 Lake Charles Gasification Louisiana 6/22/09 operation, 0.036 lb/MMBTU Good combustion, LA-0254 Ninemile Generating Louisiana 8/16/2011 natural gas fuel, 0.084 lb/MMBTU Good combustion NE-0054 Cargill, Inc. Nebraska 3/01/13 practices Operation within mfg NV-0049 Harrah’s Operating Co. Nevada 8/20/09 specs, 0.037 lb/MMBTU Flue gas recirculation, NV-0049 Harrah’s Operating Co. Nevada 8/20/09 0.0705 lb/MMBTU Operation within mfg NV-0049 Harrah’s Operating Co. Nevada 8/20/09 specs, 0.0173 lb/MMBTU Operation within mfg NV-0049 Harrah’s Operating Co. Nevada 8/20/09 specs, 0.0172 lb/MMBTU Operation within mfg NV-0049 Harrah’s Operating Co. Nevada 8/20/09 0.0073 lb/MMBTU
analysis for CO will focus on combustion units: the two modified reformers and the proposed new No. 2 Urea Plant boiler. CO emissions from combustion units are a function of oxygen availability (excess air), flame temperature, residence time at flame temperature, combustion zone design, and turbulence. Alternative CO control methods include exhaust gas cleanup methods such as catalytic oxidation, and front-end methods such as combustion control wherein CO formation is suppressed within the combustors. A search of EPA’s RBLC follows. It was noted that only two BACT determinations relied on an oxidative catalyst, while all others relied on good combustion. Non-feasibility of oxidative catalysts will be discussed later. Natural Gas Fired Primary Boilers > 250 MMBTUH – Carbon Monoxide RBLC ID Facility State Permit Issuance Date BACT Limit FL-0350 Port Dolphin Energy Florida 12/01/11 Good combustion practices, 0.015 lb/MMBTU CO IA-0105 Iowa Fertilizer Iowa 10/26/12 Good combustion practices, 0.0013 lb/MMBTU CO IA-0106 CF Industries – Port Neal Iowa 7/12/13 Oxidation catalyst, 0.0013 lb/MMBTU LA-0231 Lake Charles Gasification Louisiana 6/22/09 Good design and proper operation, 0.036 lb/MMBTU LA-0254 Ninemile Generating Louisiana 8/16/2011 Good combustion, natural gas fuel, 0.084 lb/MMBTU NE-0054 Cargill, Inc. Nebraska 3/01/13 Good combustion practices NV-0049 Harrah’s Operating Co. Nevada 8/20/09 Operation within mfg specs, 0.037 lb/MMBTU NV-0049 Harrah’s Operating Co. Nevada 8/20/09 Flue gas recirculation, 0.0705 lb/MMBTU NV-0049 Harrah’s Operating Co. Nevada 8/20/09 Operation within mfg specs, 0.0173 lb/MMBTU NV-0049 Harrah’s Operating Co. Nevada 8/20/09 Operation within mfg specs, 0.0172 lb/MMBTU NV-0049 Harrah’s Operating Co. Nevada 8/20/09 Operation within mfg 0.0073 lb/MMBTU
2011441-c2p.docx