Process for improved heat integration of an oxidant-supplemented

Details Process for improved heat integration of an oxidant-supplemented Process for improved heat integration of an oxidant-supplemented

1997-08-28

1998-09-01

Geist, Gary

Power plants

Combustion products used as motive fluid

60 3905, 252373, F02C 1310

Patent

active

057994820

ABSTRACT:
A process for integration of an autothermal reforming unit and a cogeneration power plant in which the reforming unit has two communicating fluid beds. The first fluid bed is a reformer reactor containing inorganic metal oxide and supplemental oxidant gas and which is used to oxidize light hydrocarbons, primarily by oxidant supplied from the inorganic metal oxide and secondarily supplied by supplemental oxidant gas, at conditions sufficient to produce a mixture of synthesis gas, hydrogen, carbon monoxide, and carbon dioxide. The second fluid bed is a combustor-regenerator which receives reduced inorganic metal oxide from the first fluid bed and which provides heat to heat the inorganic metal by combusting fuel gas in direct contact with the inorganic metal oxide producing hot flue gas. In preferred embodiments, steam is also fed to the reformer reactor and a catalyst may be used with the inorganic metal oxide and supplemental oxidant gas. The supplemental oxidant gas can be oxygen, enriched air or air.
The cogeneration power plant has a gas turbine equipped with an air compressor and a combustor and in the integration a portion of compressed air is drawn off from the power plant gas turbine air compressor leaving remainder compressed air; the drawn off compressed air is introduced to the combustor-regenerator; the hot flue gas from the combustor-regenerator is mixed with the remainder of the compressed air to produce a recombined gas stream and this recombined gas stream is fed to the combustor of the cogeneration gas turbine power plant.

REFERENCES:
patent: 3986349 (1976-10-01), Egan
patent: 5048284 (1991-09-01), Lywood et al.
patent: 5360777 (1994-11-01), Davis et al.
patent: 5624964 (1997-04-01), Cimini et al.

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