| 摘要 |
PROBLEM TO BE SOLVED: To provide a coal-gasification power generation system which can curtail as much as possible the mercury discharging into the atmosphere, by recovering the mercury contained in the coal-gasification gas. SOLUTION: The coal-gasification power generation system, provided with a gasification furnace 2 for producing the coal-gasification gas by the gasification of coal, a dust collection apparatus 5, which is arranged at the downstream side of the gasification furnace 2 and recovers the coal char in the coal-gasification gas, a gas turbine 10 of power generation facilities which is arranged at the downstream side of the dust collection apparatus 5 and burns the coal-gasification gas as a fuel, and a chimney 15 for discharging an exhausted gas from the gas turbine 10 into the atmosphere, is characterized in that the system is also provided at the downstream side of the gas turbine 10 before the chimney 15 with a bag filter 16, and the coal char recovered in the dust collection apparatus 5 is fed into the above exhausted gas at the upstream side of the bag filter 16, and recovered by the bag filter 16. COPYRIGHT: (C)2010,JPO&INPIT
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