Process for the preparation of a hydrogen-rich stream

Details Process for the preparation of a hydrogen-rich stream Process for the preparation of a hydrogen-rich stream

C - Chemistry, Metallurgy

01

B

C01B 3/16 (2006.01) C01B 3/32 (2006.01)

Patent

CA 2520850

A process for the preparation of a hydrogen-rich stream comprising contacting a process gas containing carbon monoxide and water, the process gas further including dimethyl ether or a dimethyl ether/methanol mixture in at least one shift step in the presence of an ether hydration catalyst selected from the group of solid acids and a methanol decomposition catalyst comprising copper, zinc and aluminium and/or chromium.

L'invention concerne un procédé de préparation d'un flux riche en hydrogène consistant à mettre en contact un gaz de traitement contenant du monoxyde de carbone et de l'eau, ce gaz de traitement contenant également de l'éther diméthylique ou un mélange éther diméthylique/méthanol dans au moins une étape de remaniement en présence d'un catalyseur d'hydratation d'éther sélectionné dans le groupe comprenant des acides solides et un catalyseur de décomposition de méthanol comprenant du cuivre, du zinc et de l'aluminium et/ou du chrome.

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