Patent ID: 6032456
Filing Date: 2000-03-07
Classification: F01K,F02B,F02C,Y02E,Y02T

Abstract:
A method of generating power comprising the following steps:(a) converting solid fuel to a high-temperature high-pressure fuel gas in a gasifier, the fuel gas containing particulate solids and hazardous air pollutants;(b) cooling the fuel gas flow down to a first temperature exceeding the temperature at which liquid water forms in the fuel gas by passing it through a first heat-transfer system comprised of a packed bed heat regenerator including granules coated with a tar cracking catalyst;(c) cooling the fuel gas flow further down to a second temperature exceeding the temperature at which liquid water forms in the fuel gas;(d) removing the particulate solids and hazardous air pollutants from the fuel gas while simultaneously maintaining the temperature of the fuel gas flow above the temperature at which liquid water forms in the fuel gas;(e) reheating the fuel gas by passing it through the first heat-transfer system; and(f) generating power from the reheated fuel gas.