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<br />Systems and <br />Components <br />Description Operating Modes Injectate Catalyst Compounds <br />HRSG Cont. process to produce <br />steam. This steam was <br />directly injected into the <br />gas turbine to augment <br />power. <br />traditional manner – <br />it was used to augment <br />power in the gas turbine. <br />None None <br />Ammonia <br />Injection/Slip <br />System <br />Ammonia was added to the <br />stream of exhaust flue and was <br />adsorbed onto the Selective <br />Catalytic Reduction System <br />(SCR) catalyst. Ammonia that <br />was not reacted is called <br />ammonia slip. <br />The ammonia injection <br />system was in continuous <br />operation with the gas <br />turbine. <br />Ammonia (NH3) None <br />Catalytic Oxidation <br />Reduction System <br />Carbon monoxide (CO) and <br />hydrocarbons (HC) are converted <br />in the oxidation catalyst to carbon <br />dioxide and water vapor which are <br />non-toxic gases. The conversion <br />of CO and HC in the catalyst <br />requires oxygen. Oxidation <br />catalyst systems frequently <br />require that extra air, called <br />secondary air, be introduced into <br />the exhaust system in front of the <br />catalyst. <br />The catalytic oxidation <br />reduction system was in <br />continuous operation with <br />the gas turbine. <br />Air The catalyst is an <br />Engelhard Corporation <br />monolithic structure <br />(honeycomb) coated with a <br />proprietary precious metal <br />combination. Engelhard <br />Corporation was acquired <br />by the German company <br />BASF in 2006. <br />Continuous <br />Emission <br />Monitoring System <br />(CEMS) <br />The CEMS consisted of a <br />sample probe, filter, sample <br />line, gas conditioning <br />system, calibration gas <br />system, and a series of gas <br />analyzers. <br />The CEMS was in continuous <br />operation while the gas turbine <br />was operating. <br />None None <br />SCR The SCR is a means of <br />converting nitrogen oxides with <br />the aid of <br />a catalyst into diatomic <br />nitrogen and water. <br />Ammonia is added to a stream <br />of flue or exhaust gas and is <br />adsorbed onto the catalyst. <br />The SCR system was in <br />continuous operation while the <br />gas turbine was operating. <br />Ammonia (NH3) The catalyst used was a <br />proprietary metal oxide <br />design by Foster <br />Wheeler Energy <br />America. The SCR <br />catalysts were typically <br />made from various <br />ceramic materials used <br />as a carrier. Active <br />catalytic components <br />were usually either <br />oxides of base metals <br />(such as vanadium, <br />molybdenum and <br />tungsten), or various <br />precious metals. <br />Diesel Generator None Not applicable Not applicable Not applicable <br />