Process and apparatus for producing hydrogen

Details Process and apparatus for producing hydrogen Process and apparatus for producing hydrogen

2011-03-29

2011-03-29

Langel, Wayne (Department: 1793)

Chemistry: electrical current producing apparatus, product, and

Fuel cell, subcombination thereof, or method of making or...

Process or means for producing, recycling, or treating...

C423S648100, C423S650000, C423S651000, C423S652000, C429S423000, C429S424000, C429S425000

Reexamination Certificate

active

07914933

ABSTRACT:
A process and apparatus for producing hydrogen for a fuel cell by (a) reacting a fuel comprising a hydrocarbon and/or an oxygenate with steam, under steam reforming conditions in a reforming reactor to produce a product stream comprising hydrogen, (b) feeding at least part of the hydrogen produced in step a) to a fuel cell, to produce electric power and a waste stream comprising hydrogen, (c) reacting at least part of the waste stream from step b) with an oxygen-containing gas in a combustion reactor, and (d) using the heat energy produced in step c) to supply energy to the steam reforming reaction in step a) in which the combustion reactor is positioned within the reforming reactor to facilitate heat transfer between the stages.

REFERENCES:
patent: 5861137 (1999-01-01), Edlund
patent: 6162267 (2000-12-01), Priegnitz et al.
patent: 6348278 (2002-02-01), LaPierre et al.
patent: 0 199 878 (1986-11-01), None
patent: 1 094 031 (2001-04-01), None
International Search Report for PCT/GB02/02522; ISA/EPO; Date of Mailing: Sep. 24, 2002.

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