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US 2026/0285690 A1Published application
Cleaning of co2 containing feed gases
AssigneeTopsoe A/S
InventorsMartin ØSTBERG, Birgitte Staal HAMMERSHØI, Mads Kristian KAARSHOLM, Morten THELLEFSEN
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Abstract
The present invention relates to a process for cleaning a CO2-rich gas feed, in the presence of a hydrogen-rich feed, in particular for removing sulfur-containing impurities, and optionally oxygen.
Claims22
A process for cleaning a CO2-rich gas feed, said CO2-rich gas feed comprising at least 80 wt % CO2 and one or more sulfur-containing impurities;
- wherein said process comprises the steps of:
- passing the CO2-rich gas feed together with a hydrogen-rich feed over a first catalyst active in hydrogenation, whereby at least a portion of the sulfur-containing impurities in the CO2-rich gas feed is converted to H2S, to thereby provide a H2S-containing CO2 gas stream,
- passing the H2S-containing CO2 gas stream over one or more guard material, and adsorbing H2S and optionally one or more sulfur-containing compounds on a guard material, to provide a cleaned CO2-rich gas stream.
Dependencies are inferred from the claim text.