Methanol manufacture using pressure swing reforming

Details Methanol manufacture using pressure swing reforming Methanol manufacture using pressure swing reforming

2006-12-12

2006-12-12

Parsa, J. (Department: 1621)

Chemistry: fischer-tropsch processes; or purification or recover

Including regeneration of catalyst

C518S700000, C518S702000, C518S704000, C518S705000, C518S713000, C518S714000, C518S715000, C585S640000

Reexamination Certificate

active

07148261

ABSTRACT:
A process for producing methanol is described in which a hydrocarbon is steam reformed in a reforming zone, and during the reforming stage, of a cyclic steam reformer having a reforming stage and a regeneration stage, the steam reforming being conducted under conditions effective to produce a first effluent stream containing synthesis gas. Fuel and an oxygen-containing gas are combusted in the regeneration stage of the reformer so as to reheat the reforming zone to a temperature sufficient for the reforming stage and generate a flue gas. At least part of the first effluent stream is contacted with a methanol synthesis catalyst under conditions effective to convert synthesis gas to methanol and form a methanol-containing stream and a tail gas stream comprising unreacted carbon monoxide and hydrogen. At least part of the tail gas stream is recycled as fuel for the regeneration stage of the cyclic steam reformer.

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