Removal of H2S in Syngas Produced from Coal Gasification using Microwave Plasma

Coal is relative cheaper than petroleum, widely distributed across the globe, and abounds in reserves. Moreover, strict clean air policies and CO2 emission regulation lead increased interest and researches in the clean utilization of coal. Coal gasification is recognized as a one of the clean coal technology that has come into the spotlight for its environment-friendliness and better efficiency than conventional generation system [Minchener, 2005; Higman et al., 2008]. During coal gasification, sulfur compound in coal is converted to gaseous phase of H2S. The H2S in a syngas generated from the coal gasifier must be removed before the engine or turbine because it leads the corrosion and erosion of the system and eliminated to clean use of syngas as a feedstock of chemicals.