GAS TURBINE GENERATING METHOD AND GENERATING APPARATUS

摘要

PROBLEM TO BE SOLVED: To introduce gasified gas in a high temperature, by introducing the gasified gas containing sulfur into a combustor and then making exhaust gas which is discharged from a gas turbine contact with water containing deslfurizing agent to separate and recover sulfur from the exhaust gas. SOLUTION: Coal gasification gas from which ash and ammonia are eliminated is introduced into a gas turbine combustor 310. In the gas turbine combustor 310, the coal gasification gas is brunt by humidification compressed air 24. Hydrogen sulfide and carbonyl sulfide contained in the coal gasification gas is turned into sulfur dioxide by the gas turbine combustor 310. The gas generated by the gas turbine combustor 310 is used as working medium gas 15 for a gas turbine 330 which is driven to obtain electric power generated in a ganerator 340. The gas turbine 330 exhausts gas turbine exhaust gas 16 containing the sulfur dioxide and moisture. The gas turbine exhaust gas 16 is separated and recovered by a water recovery/desulfurization device 430. Accordingly, high efficiency is implemented without lowering gasified gas to ordinary temperature.