Importance

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Abstract

The present invention relates to a method for producing syngas using a catalytic reverse water gas shift (RWGS) reaction, the method at least comprising the steps of: a) providing a feed stream (10) comprising at least hydrogen (H2) and carbon dioxide (CO2); b) heating the feed stream (10) provided in step a) in a first heat exchanger (3) thereby obtaining a first heated feed stream (20); c) introducing the first heated feed stream (20) into a RWGS reactor (2) and subjecting it to a catalytic RWGS reaction, thereby obtaining a syngas containing stream (30); d) cooling the syngas containing stream (30) obtained in step c) in the first heat exchanger (3) against the feed stream (10) provided in step a), thereby obtaining a first cooled syngas stream (40); c) cooling the first cooled syngas stream (40) obtained in step d) in a second heat exchanger (5) thereby obtaining a second cooled syngas stream (50); f) separating the second cooled syngas stream (50) obtained in step e) in a gas/liquid separator (6) thereby obtaining a water-enriched stream (110) and a water-depleted syngas stream (100); g) separating the water-depleted syngas stream (100) obtained in step f) in a CO₂ removal unit (8) thereby obtaining a CO₂-enriched stream (120) and a CO₂-depleted syngas stream (130): and—31−h) combining the CO₂-enriched stream (120) obtained in step g) with the feed stream (10) provided in step a).

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First Claim