Patent ID: 6877322
Filing Date: 2005-04-12
Classification: F01K,F02C,F25J,Y02E

Abstract:
1. A power generating system comprising: a source of fresh, pure oxygen (O a gasifier, having a solid fuel inlet and a fresh, pure oxygen inlet, operating at an elevated pressure P a particle separator arranged in flow connection with said gasifier for separating the char particles from the syngas emanating from said gasifier; a syngas combustor, having a fresh, pure oxygen inlet and an inlet for syngas discharged from the particle separator, for firing the syngas so as to produce exhaust gas comprising carbon dioxide (CO a gas turbine arranged in flow connection with said syngas combustor, for expanding the exhaust gas so as to generate power with a generator connected to said gas turbine, and discharging expanded exhaust gas through an outlet of said gas turbine; a steam generator, arranged in flow connection with said outlet of said gas turbine, comprising an outlet for discharging processed exhaust gas; a gas compressor system having an inlet in flow connection with said outlet of said steam generator, and an outlet for discharging a stream of compressed exhaust gas; and a first conductor that conducts a first portion of the stream of compressed exhaust gas to said gasifier to control the temperature in said gasifier, to provide CO