General Electric Company

Michael Jandrisevits

Ashok Kumar Anand

David Andrew Stats

Philip Fadhel Berrahou

Hans Peter Luessen

Patrick King Wah May

Gregory Paul Wotzak

Johnny Yit Boey

Brian Jacob Berry

A system and method for recovering heat from dirty gaseous fuel (syngas), wherein the pressure of clean fuel gas is elevated to a pressure higher than that of the dirty syngas and then the pressurized clean fuel gas is fed to a heat recovery unit for heat exchange with the dirty syngas. Consequently, in the event of a leak in the heat recovery unit, the flow is from the clean fuel side to the dirty syngas side, thereby avoiding the possibility of contamination of the clean fuel gas.

Method and system for heat recovery from dirty gaseous fuel in gasification power plants

A system and method for analyzing a design using predetermined analysis models are presented. The method may be carried out on an automated design system including an integration server in communication with a plurality of subprocess servers each configured for conducting a subprocess analysis using one of the analysis models. The method comprises receiving at the integration server an analysis request including a set of desired performance parameters and constructing a set of design characteristics for meeting the desired performance parameters. The method further includes determining a set of design performance results associated with the set of design characteristics using the analysis models of the subprocess servers. The step of determining may include passing input information from the integration server to the plurality of subprocess servers, at least a portion of the input information being respectively processed to a format usable in the analysis model of each of the plurality of subprocess servers, passing output information from each of the plurality of subprocess servers to the integration server and using the output information to determine the design performance results.

Method and system for automated integration of design analysis subprocesses

A gas turbine system that includes a compressor, a turbine component and a load, wherein fuel and compressor discharge bleed air are supplied to a combustor and gaseous products of combustion are introduced into the turbine component and subsequently exhausted to atmosphere. A compressor discharge bleed air circuit removes bleed air from the compressor and supplies one portion of the bleed air to the combustor and another portion of the compressor discharge bleed air to an exhaust stack of the turbine component in a single cycle system, or to a heat recovery steam generator in a combined cycle system. In both systems, the bleed air diverted from the combustor may be expanded in an air expander to reduce pressure upstream of the exhaust stack or heat recovery steam generator.

Compressor discharge bleed air circuit in gas turbine plants and related method

In a method of operating a gas turbine wherein process by-product gases (e.g. from a blast furnace) are used as fuel in the gas turbine, an improvement which includes the steps of a) removing inert gases from the process gas to thereby form an enriched process gas; b) raising the enriched process gas to a minimum pressure sufficient for combustion in the gas turbine, and c) feeding the enriched process gas to the gas turbine for combustion. The invention also relates to a combined cycle plant including a gas turbine; a process system which supplies by-product gas to be used as fuel in the gas turbine; a gas enrichment station for removing inert gas prior to, or part-way through, compression of the enriched process gas; a gas clean-up station located upstream or downstream of the gas enrichment station; and, optionally, a heat recovery steam generator located between the gas turbine and steam turbine; and means for conducting exhaust gas from the gas turbine to the heat recovery steam generator to generate steam for the steam turbine.

Removal of inert gases from process gases prior to compression in a gas turbine or combined cycle power plant

In a method of operating a gas turbine wherein process by-product gases (e.g., from a blast furnace) are used as fuel in the gas turbine, an improvement which includes the steps of a) removing inert gases from the process gas to thereby form an enriched process gas; b) raising the enriched process gas to a minimum pressure sufficient for combustion in the gas turbine, and c) feeding the enriched process gas to the gas turbine for combustion. The invention also relates to a combined cycle plant including a gas turbine; a process system which supplies by-product gas to be used as fuel in the gas turbine; a gas enrichment station for removing inert gas prior to, or part-way through, compression of the enriched process gas; a gas clean-up station located upstream or downstream of the gas enrichment station; and, optionally, a heat recovery steam generator located between the gas turbine and steam turbine; and means for conducting exhaust gas from the gas turbine to the heat recovery steam generator to generate steam for the steam turbine.

Growing community of inventors

Clifton Park, NY, United States of America

Michael Jandrisevits