Process for producing a hydrogen-containing product gas

Details Process for producing a hydrogen-containing product gas Process for producing a hydrogen-containing product gas

C - Chemistry, Metallurgy

01

B

C01B 3/38 (2006.01)

Patent

CA 2750866

A process for producing a hydrogen-containing product gas by catalytic steam- hydrocarbon reforming with an overall steam-to-carbon molar ratio between 1.5 and 2.4 for the process. The process stream is reacted in at least two prereformers prior to reaction in catalyst-containing tubes in a top-fired reformer furnace. The process stream is reacted adiabatically in the first prereformer, while the process stream is heated prior to being introduced into the second prereformer and/or the second prereformer is heated. The process avoids carbon formation on the catalyst in the catalyst- containing tubes in the primary reformer.

La présente invention a pour objet un procédé pour la production d'un gaz produit contenant de l'hydrogène par reformage catalytique à la vapeur d'hydrocarbures avec un rapport molaire global vapeur/carbone compris entre 1,5 et 2,4 pour le procédé. Le flux de traitement est mis à réagir dans au moins deux préreformeurs avant une réaction dans des tubes contenant un catalyseur dans un four de reformage chauffé par le haut. Le flux de traitement est mis à réagir de manière adiabatique dans le premier préreformeur, tandis que le flux de traitement est chauffé avant d'être introduit dans le second préreformeur et/ou le second préreformeur est chauffé. Le procédé évite la formation de carbone sur le catalyseur dans les tubes contenant le catalyseur dans le reformeur primaire.

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