GASIFICATION OF COAL AND APPARATUS THEREFOR

摘要

PURPOSE:To directly produce a gas rich in hydrogen and having low CO2 content from coal. CONSTITUTION:Coal 1 is supplied to a gasification furnace 10 heated at >=1400 deg.C and gasified for 0.1-1sec and the produced gas 12 rich in hydrogen is purified to obtain purified gas 51. The purified gas is used as a fuel for heating the gasification furnace 10 and electric power is generated by a gas turbine 70 driven by the combustion gas 11. The steam 82 recovered by a gas cooler 35 is heated with the exhaust gas of the gas turbine 70 and electric power is generated by a steam turbine 90. Since the present process generates little CO and CO2 and a large amount of H2, the produced gas has decreased CO2 generation in combustion.