CO2 RECOVERY TYPE CLOSED CYCLE GASIFICATION POWER GENERATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To successfully solve a problem found in a CO₂ recovery type closed cycle gasification power generation system related to the prior art.;SOLUTION: A CO₂ recovery type closed cycle gasification power generation system is provided which comprises: coal gasification equipment 1; a combustor 3 for generating combustion gas using coal-gasified gas as fuel and oxygen generated in oxygen production equipment 2 as an oxidizer; a gas turbine 4 driven by the combustion gas to drive a power generator 5; a compressor 6 for compressing a part of exhaust gas from the gas turbine 4, mixing the compressed exhaust gas with a part of oxygen generated in the oxygen production equipment 2 and returning the resultant gaseous mixture to the combustor 3; and another compressor 8 for compressing exhaust gas from the gas turbine 4, supplying a part of the compressed exhaust gas to a carbon dioxide separating device 13 and returning residual exhaust gas to the coal gasification equipment. Oxygen is separated in the carbon dioxide separating device 13 and coal-gasified gas is combusted in the combustor 3 using the oxygen separated in the carbon dioxide separating device 13 as the oxidizer.;COPYRIGHT: (C)2016,JPO&INPIT