Paul A Wallace

US Patent:

20130192190, Aug 1, 2013

Filed:

Mar 15, 2013

Appl. No.:

13/833088

Inventors:

General Electric Company - Schenectady NY, US
Pradeep S. Thacker - Bellaire TX, US
Paul Steven Wallace - Katy TX, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

F01K 23/10
F02C 3/20

US Classification:

60 3912, 60 39182

Abstract:

A method of operating an integrated gasification combined cycle power generation system is provided. The method includes compressing air in an adiabatic air compressor to produce a compressed heated air stream, heating a nitrogen stream using the compressed heated air stream to produce a heated nitrogen stream and a cooled compressed air stream, and channeling the cooled compressed air stream to an air separation unit.

US Patent:

53457560, Sep 13, 1994

Filed:

Oct 20, 1993

Appl. No.:

8/139367

Inventors:

Frederick C. Jahnke - Rye NY
Paul S. Wallace - Katy TX
Pradeep S. Thacker - Houston TX

Assignee:

Texaco Inc. - White Plains NY

International Classification:

F02G 300

US Classification:

60 3902

Abstract:

A highly efficient partial oxidation process with the production of power comprising the steps of producing fuel gas by the partial oxidation of hydrocarbonaceous fuel, cooling said fuel gas at high pressure by quenching in water to produce quenched fuel gas and by indirect heat exchange with BFW to maximize the production of IP and MP steam, cleaning said fuel gas, preheating scrubbing water comprising process condensate and make-up water by direct contact and direct heat exchange with clean fuel gas and using said preheated scrubbing water in the cleaning of said fuel gas, reducing the pressure of said cooled fuel gas stream prior to heating water for fuel gas saturation, cooling the process fuel gas stream in stages and condensing water for use as said scrubbing water, purifying the process fuel gas and saturating it with water, and burning said purified and saturated fuel gas in the combustor of a power-producing gas turbine along with saturated nitrogen to produce exhaust gas with a reduced NO. sub. x. In one embodiment, the hot exhaust gas from the gas turbine is passed through a HRSG to superheat the process steam. The superheated process steam is then used as part of the working fluid in an expansion turbine for the production of power.