公开(公告)号：US20250001359A1

公开(公告)日：2025-01-02

申请号：US18216179

申请日：2023-06-29

Applicant: Air Products and Chemicals, Inc.

Inventor： TIMOTHY CHRISTOPHER GOLDEN ,  MOZHGAN ALIMOHAMMADI-ZANJANI ,  EDWARD LANDIS WEIST, JR. ,  ERYK REMIEZOWICZ ,  ROGER ANTHONY DEWING ,  YU ZHANG ,  THIERRY GIRAUD ,  DAVID ROSS GRAHAM ,  TOBY AMOTT ,  JEFFREY CARL MOCSARI

IPC: B01D53/86 ,  B01D53/02

Abstract: A method comprising contacting an offgas stream comprising H2, H2O, CO, CO2, and at least one impurity comprising COS with at least one metal oxide to catalyze a reaction of H2O and COS to form H2S and CO2 in the offgas stream; contacting the offgas stream with an H2S-adsorbent to remove H2S from the offgas stream to produce a treated gas stream; and separating the treated gas stream to produce a carbon dioxide-enriched stream and a carbon dioxide-depleted stream.