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Operating results are presented for an air-blown, fixed-bed coal gasification system, operating in conjunction with a low-temperature acid-gas removal system and integrated with a full-flow pressurized gas combustion apparatus. This pilot-scale system simulated the major subsystems of an integrated gasification combined-cycle (IGCC) power plant. The overall plant emissions goals of >90% hydrogen sulfide removal were achieved, and gas particulate loadings of <4 ppm, with a gas alkali metal content of <20 ppb, were measured. Gas turbine combustion emissions of carbon monoxide and oxides of nitrogen are reported as functions of the combustor exit gas temperature.
alternative fuels, gasification, coal, gas cleanup, gas turbines, integrated gasification, combined cycle, combustion, Benfield acid gas removal
Manager, Fuels and Corrosion Unit, Gas Turbine Division, General Electric Co., Schenectady, N.Y.
Manager, Emissions Control Unit, Corporate Research and Development, General Electric Co., Schenectady, N.Y.
Manager, Process Operations Unit, Corporate Research and Development, General Electric Co., Schenectady, N.Y.