Chemistry of inorganic compounds – Hydrogen or compound thereof – Elemental hydrogen
Reexamination Certificate
2006-03-27
2010-06-08
Vanoy, Timothy C (Department: 1793)
Chemistry of inorganic compounds
Hydrogen or compound thereof
Elemental hydrogen
C423S650000, C423S651000, C423S352000, C422S198000, C422S198000, C422S201000, C422S200000, C422S198000, C422S187000, C422S129000, C518S700000
Reexamination Certificate
active
07731935
ABSTRACT:
An apparatus for steam reforming of hydrocarbons comprises a heat exchange reformer having disposed within a plurality of vertical catalyst-filled tubes, through which a gas mixture comprising hydrocarbon and steam may be passed, and to which heat may be transferred by means of a heat exchange medium flowing around the external tube surfaces, wherein heat exchange adapting means are provided within the reformer so that the tubes have a zone of lower heat exchange extending from the bottom of the catalyst up to 25% of the catalyst depth with no heat exchange enhancement means provided in that zone. A process for steam reforming of hydrocarbons employs this apparatus.
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Esp@cenet patent family list for EP 0194067.
Esp@cenet patent family list for EP 0194067 ('067 doc. published Oct. 9, 1986).
Brady Stuart Ballentyne
Farnell Peter William
Fowles Martin
Berns Daniel
Johnson Matthey PLC
RatnerPrestia
Vanoy Timothy C
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