Appeal No. 2001-2488
Application No. 09/368,455
APPENDIX
1. A hydrocarbon fuel gas steam reformer assemblage comprising:
a) at least one process gas passage, said process gas passage
having an inlet end and an outlet end, said process gas passage
being operable to direct a stream of a fuel gas and steam mixture
through said assemblage in a first direction;
b) at least one burner gas passage disposed in heat transfer
relationship with said process gas passage, said burner gas
passage having an inlet end and an outlet end, and said burner
gas passage being operable to direct a stream of a burner gas
through said assemblage in a second direction which is counter to
said first direction;
and
c) a plurality of heat transfer fins disposed in said burner gas
passage, said heat transfer fins being present in a population
density gradient from said burner gas passage inlet end to said
burner gas passage outlet end, said fin population density
gradient providing minimal heat transfer to walls of said burner
gas passage in an inlet section of said burner gas passage; and
said fin population density gradient providing increased heat
transfer to said walls of said burner gas passage in an
intermediate section of said burner gas passage; and said fin
population density gradient providing still greater heat transfer
to said walls of said burner gas passage in an outlet section of
said burner gas passage.
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Last modified: November 3, 2007