Methods and configurations for acid gas enrichment

Details Methods and configurations for acid gas enrichment Methods and configurations for acid gas enrichment

B - Operations, Transporting

01

D

B01D 53/14 (2006.01)

Patent

CA 2552644

Hydrogen sulfide is selectively enriched from an acid gas (1) that comprises relatively large quantities of carbon dioxide using a configuration in which a portion of an isolated hydrogen sulfide stream is introduced into an absorber (51) operating as a carbon dioxide rejecter. The resulting concentrated hydrogen sulfide enriched solvent (4) is then further used (directly or indirectly) to absorb hydrogen sulfide from an acid feed gas.

Du sulfure d'hydrogène est sélectivement enrichi à partir d'un gaz acide (1) comprenant des quantités relativement importantes de dioxyde de carbone, ceci au moyen d'un système dans lequel une partie d'un flux de sulfure d'hydrogène isolé est introduite dans un absorbeur (51) qui assure le rejet du dioxyde de carbone. Le solvant enrichi au sulfure d'hydrogène concentré (4) ainsi obtenu est utilisé subséquemment (directement ou indirectement) pour absorber l'hydrogène présent dans un gaz d'alimentation acide.

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