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Method for converting hydrocarbon fuel into hydrogen gas and carbon dioxide

United States Patent

March 27, 2001
View the Complete Patent at the US Patent & Trademark Office
A hydrocarbon fuel reforming method is disclosed suitable for producing synthesis hydrogen gas from reactions with hydrocarbons fuels, oxygen, and steam. A first mixture of an oxygen-containing gas and a first fuel is directed into a first tube 108 to produce a first reaction reformate. A second mixture of steam and a second fuel is directed into a second tube 116 annularly disposed about the first tube 108 to produce a second reaction reformate. The first and second reaction reformates are then directed into a reforming zone 144 and subject to a catalytic reforming reaction. In another aspect of the method, a first fuel is combusted with an oxygen-containing gas in a first zone 108 to produce a reformate stream, while a second fuel under steam reforming in a second zone 116. Heat energy from the first zone 108 is transferred to the second zone 116.
Clawson; Lawrence G. (Dover, MA), Mitchell; William L. (Belmont, MA), Bentley; Jeffrey M. (Westford, MA), Thijssen; Johannes H. J. (Cambridge, MA)
Arthur D. Little, Inc. (Cambridge, MA)
09/ 184,615
November 2, 1998
GOVERNMENT RIGHTS The Government has rights in this invention pursuant to Contract No. DE-AC02-92CE50343, awarded by the U.S. Department of Energy.