Synthesis gas production by steam reforming using catalyzed...

C - Chemistry – Metallurgy – 01 – B

Patent

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C01B 3/38 (2006.01) B01J 8/00 (2006.01) B01J 8/06 (2006.01) B01J 12/00 (2006.01) C01B 3/40 (2006.01)

Patent

CA 2340698

Process for the preparation of hydrogen and carbon monoxide rich gas by catalytic steam reforming of a hydrocarbon feedstock comprising steps of: (a) optionally passing a process gas of hydrocarbon feedstock through a first reactor with a steam reforming catalyst heated by a hot gas stream; (b) passing the effluent from the first reactor to a subsequent tubular reactor containing a steam reforming catalyst and being heated by burning of fuel, thereby obtaining a hot gas stream of steam reformed product gas and a hot gas stream of flue gas; and wherein a reforming catalyst is placed on a metallic support having substantially the same shape as a wall of the reactor and being arranged in heat conduction relationship with the reactor wall.

L'invention concerne un procédé de préparation d'un gaz riche en hydrogène et en monoxyde de carbone par reformage catalytique à la vapeur d'une charge d'alimentation d'hydrocarbures. Ledit procédé consiste à: (a) faire éventuellement passer un gaz de traitement d'une charge d'alimentation d'hydrocarbures à travers une première chambre de réaction présentant un catalyseur de reformage à la vapeur chauffé par un courant gazeux chaud; (b) à faire passer les effluents de la première chambre de combustion à une chambre de réaction tubulaire suivante contenant un catalyseur de reformage à la vapeur, chauffé par combustion d'un carburant, ce qui permet d'obtenir un courant chaud de gaz reformés à la vapeur et un courant chaud de gaz de combustion. Le procédé est caractérisé en ce que le catalyseur de reformage est disposé sur un support métallique ayant sensiblement la même forme qu'une paroi de la chambre de réaction, et en ce qu'il est agencé en relation de conduction thermique avec ladite paroi.

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