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Title: Reforming of fuel inside fuel cell generator

Abstract

Disclosed is an improved method of reforming a gaseous reformable fuel within a solid oxide fuel cell generator, wherein the solid oxide fuel cell generator has a plurality of individual fuel cells in a refractory container, the fuel cells generating a partially spent fuel stream and a partially spent oxidant stream. The partially spent fuel stream is divided into two streams, spent fuel stream 1 and spent fuel stream 2. Spent fuel stream 1 is burned with the partially spent oxidant stream inside the refractory container to produce an exhaust stream. The exhaust stream is divided into two streams, exhaust stream 1 and exhaust stream 2, and exhaust stream 1 is vented. Exhaust stream 2 is mixed with spent fuel stream 2 to form a recycle stream. The recycle stream is mixed with the gaseous reformable fuel within the refractory container to form a fuel stream which is supplied to the fuel cells. Also disclosed is an improved apparatus which permits the reforming of a reformable gaseous fuel within such a solid oxide fuel cell generator. The apparatus comprises a mixing chamber within the refractory container, means for diverting a portion of the partially spent fuel stream to the mixingmore » chamber, means for diverting a portion of exhaust gas to the mixing chamber where it is mixed with the portion of the partially spent fuel stream to form a recycle stream, means for injecting the reformable gaseous fuel into the recycle stream, and means for circulating the recycle stream back to the fuel cells. 1 fig.« less

Inventors:
Issue Date:
Research Org.:
Westinghouse Electric Corp
OSTI Identifier:
7269324
Patent Number(s):
4729931 A
Application Number:
PPN: US 6-926300
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (United States) NETL; EDB-94-115720
DOE Contract Number:  
AC02-80ET17089
Resource Type:
Patent
Resource Relation:
Patent File Date: 3 Nov 1986
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; GAS FUELS; REFORMER PROCESSES; SOLID ELECTROLYTE FUEL CELLS; CHEMICAL REACTORS; DESIGN; EXHAUST GASES; OPERATION; RECYCLING; CHEMICAL REACTIONS; DIRECT ENERGY CONVERTERS; ELECTROCHEMICAL CELLS; FLUIDS; FUEL CELLS; FUELS; GASEOUS WASTES; GASES; WASTES; 300500* - Fuel Cells

Citation Formats

Grimble, R.E. Reforming of fuel inside fuel cell generator. United States: N. p., 1988. Web.
Grimble, R.E. Reforming of fuel inside fuel cell generator. United States.
Grimble, R.E. Tue . "Reforming of fuel inside fuel cell generator". United States.
@article{osti_7269324,
title = {Reforming of fuel inside fuel cell generator},
author = {Grimble, R.E.},
abstractNote = {Disclosed is an improved method of reforming a gaseous reformable fuel within a solid oxide fuel cell generator, wherein the solid oxide fuel cell generator has a plurality of individual fuel cells in a refractory container, the fuel cells generating a partially spent fuel stream and a partially spent oxidant stream. The partially spent fuel stream is divided into two streams, spent fuel stream 1 and spent fuel stream 2. Spent fuel stream 1 is burned with the partially spent oxidant stream inside the refractory container to produce an exhaust stream. The exhaust stream is divided into two streams, exhaust stream 1 and exhaust stream 2, and exhaust stream 1 is vented. Exhaust stream 2 is mixed with spent fuel stream 2 to form a recycle stream. The recycle stream is mixed with the gaseous reformable fuel within the refractory container to form a fuel stream which is supplied to the fuel cells. Also disclosed is an improved apparatus which permits the reforming of a reformable gaseous fuel within such a solid oxide fuel cell generator. The apparatus comprises a mixing chamber within the refractory container, means for diverting a portion of the partially spent fuel stream to the mixing chamber, means for diverting a portion of exhaust gas to the mixing chamber where it is mixed with the portion of the partially spent fuel stream to form a recycle stream, means for injecting the reformable gaseous fuel into the recycle stream, and means for circulating the recycle stream back to the fuel cells. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {3}
}