Patent ID: 6237320
Filing Date: 2001-05-29
Classification: F01D,F02C,Y02E

Abstract:
A method of enriching by-product process gases from a blast furnace for use as fuel in a combustor of a gas turbine comprising the steps of:a) removing inert gases from the process gas to thereby create an enriched process gas having a predetermined heating value for combustion in said gas turbine;b) before or after step a), removing particulates from said process gas;c) raising the enriched process gas to a minimum predetermined pressure required for gas turbine combustion; and, following step c);d) feeding the enriched process gas at said minimum predetermined pressure directly to the gas turbine combustor;wherein the gas turbine is part of a combined cycle power plant including one or more heat recovery steam generators and one or more steam turbines; andwherein some portion of the enriched process gas is diverted to the heat recovery steam generator prior to step d).