Steam-hydrocarbon reforming with reduced carbon dioxide...

Details Steam-hydrocarbon reforming with reduced carbon dioxide... Steam-hydrocarbon reforming with reduced carbon dioxide...

C - Chemistry, Metallurgy

01

B

C01B 3/34 (2006.01) C01B 3/50 (2006.01) F23J 15/04 (2006.01)

Patent

CA 2705640

A process for producing a hydrogen-containing product gas with reduced carbon dioxide emissions compared to conventional hydrogen production processes. A hydrocarbon and steam are reformed in a reformer and the resulting reformate stream is shifted in one or more shift reactors. The shifted mixture is scrubbed to remove carbon dioxide to form a carbon dioxide-depleted stream. The carbon dioxide-depleted stream is separated to form a hydrogen-containing product gas and a by-product gas. A portion of the hydrogen containing product gas is used as a fuel in the reformer and a portion of the by-product gas is recycled back into the process. The process may optionally include reforming in a prereformer and/or an oxygen secondary reformer.

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