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Apparatus for converting hydrocarbon fuel into hydrogen gas and carbon dioxide

United States Patent

July 3, 2001
View the Complete Patent at the US Patent & Trademark Office
A hydrocarbon fuel reformer (200) is disclosed suitable for producing synthesis hydrogen gas from reactions with hydrocarbons fuels, oxygen, and steam. The reformer (200) comprises first and second tubes (208,218). The first tube (208) includes a first catalyst (214) and receives a first mixture of steam and a first fuel. The second tube (218) is annularly disposed about the first tube (208) and receives a second mixture of an oxygen-containing gas and a second fuel. In one embodiment, a third tube (224) is annularly disposed about the second tube (218) and receives a first reaction reformate from the first tube (208) and a second reaction reformate from the second tube (218). A catalyst reforming zone (260) annularly disposed about the third tube (224) may be provided to subject reformate constituents to a shift reaction. In another embodiment, a fractionator is provided to distill first and second fuels from a fuel supply source.
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/ 185,393
November 3, 1998
GOVERNMENTS RIGHTS The Government has rights in this invention pursuant to Contract No. DE-AC0292CE50343, awarded by the U.S. Department of Energy.