公开(公告)号：US20230233986A1

公开(公告)日：2023-07-27

申请号：US17751081

申请日：2022-05-23

申请人： Air Products and Chemicals, Inc.

发明人： Mozhgan Alimohammadi Zanjani ,  David Ross Graham ,  Donald E. Henry ,  Donn Michael Herron ,  Roger Anthony Dewing

IPC分类号： B01D53/047 ,  C01B32/50 ,  B01J20/18 ,  B01D53/22

CPC分类号： B01D53/0476 ,  B01D53/229 ,  B01J20/18 ,  C01B32/50 ,  B01D2253/108 ,  B01D2257/504 ,  B01D2259/404 ,  B01D2259/4062 ,  C01B2210/0018

摘要： A process for separating carbon dioxide from a feed gas comprising carbon dioxide may comprise compressing the feed gas in a feed gas compressor to produce a compressed feed gas. The process may also comprise separating the compressed feed gas by an adsorption process comprising: using a plurality of adsorbent beds to produce a carbon dioxide-enriched product stream and a carbon dioxide-depleted stream, and a blowdown step. A blowdown gas may be removed from the adsorbent bed. The process may also comprise compressing the blowdown gas in the feed gas compressor and combining the blowdown gas with the compressed feed gas.