POWERMAX's coal gasification power generation system(abbreviated as CGPS) is a kind of advanced power generating system intergrating coal gasification technology and efficient gas engine/generator. CGPS includes coal gasification (coal gasifier) and gas purification (detarrer, desulfuration equipment) and coal gas power generating(coal gas engine). Waste heat boiler and steam turbine may also be chosen to make a gas-steam combined cycle power generating system.