Drive the gas turbine of oxygen burnup type with the burnup gas which was burnt up with the oxygen which separates the methane which is recovered

摘要

PROBLEM TO BE SOLVED: To provide a gas turbine system, especially a gas turbine power generation system, that recovers a substantially total amount of generated carbon dioxide gas and hardly emits it into the atmosphere by using coal seam gas.;SOLUTION: An oxygen combustion type gas turbine 1 is driven by combustion of methane gas with oxygen separated from air by an oxygen manufacturing device 3, carbon dioxide emitted from a turbine together with air components after the oxygen separation is injected into an underground coal seam 7, in which the carbon dioxide is fixed, and coal seam gas is recovered up to the ground via a gas drive action of the injection gas and supplied as fuel to the gas turbine, so that atmospheric emission of carbon dioxide is suppressed.;COPYRIGHT: (C)2003,JPO