| 摘要 |
PROBLEM TO BE SOLVED: To provide a gasifying combined power generation equipment whereby kept energy of high pressure nitrogen from an air separator can be effectively applied without reducing residual oxygen concentration of exhaust gas supplied to a boiler equipment with high temperature exhaust gas of a gas turbine serving as an oxidizing agent. SOLUTION: In this gasifying combined power generation equipment provided with a gasifying equipment 1, gas turbine equipment 6, and a boiler equipment 10 to burn fuel in the boiler equipment with exhaust gas in the gas turbine equipment 6 serving as an oxidizing agent, a high pressure type air separator 7 liquefying pressure air separated into pressurized oxygen gas and nitrogen gas, nitrogen gas heaters 12, 14 heating separated nitrogen gas, and an oxygen gas compressing turbine compressor 16 further pressurizing separated oxygen gas by heated nitrogen gas are provided. In a nitrogen/air heat exchanger 12, by extraction air, and/or in a nitrogen/gasified gas heat exchanger 14, by gasified gas, separated nitrogen gas is heated to a high temperature (for instance, about 400 to 500 deg.C), and an expansion turbine of the turbine compressor 16 is driven.
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