Patent ID: 8110310
Filing Date: 2012-02-07
Classification: C01B,C10J,C10K,F01K,H01M,Y02B,Y02E,Y02P

Abstract:
1. A power generating plant, comprising: a coal gasification furnace that burns coal to obtain a fuel gas; a gas treatment unit that converts the fuel gas obtained by the coal gasification furnace into a desired CO gas-containing gas; a shift reaction unit that subjects the CO gas-containing gas obtained by the gas treatment unit to a chemical reaction to form H a molten carbonate fuel cell which has an anode supplied with an anode gas containing H a combustor for burning a cathode exhaust of the cathode and an anode exhaust of the anode; a turbine for expanding a combustion gas from the combustor to obtain power; waste heat recovery equipment which performs heat recovery of an exhaust from the turbine to generate steam, drives a steam turbine to obtain power, and cools the exhaust subjected to the heat recovery for separation into water and a CO a CO an oxygen supply system for supplying pure oxygen at a predetermined pressure to the CO wherein the gas treatment unit comprises: a gas cooling unit that cools the fuel gas obtained by the coal gasification furnace with the water separated by the waste heat recovery equipment, a desulfurization unit that desulfurizes the fuel gas cooled by the gas cooling unit to form the desired CO gas-containing gas, and a steam supply system for supplying steam, which has been obtained by cooling the gas by the gas cooling unit, to the CO gas-containing gas desulfurized by the desulfurization unit, and the power generating plant further comprising: a heating-up unit that supplies the cathode exhaust to the cathode gas containing pure oxygen and a CO