发明授权
- 专利标题: Carbon dioxide recovery from an oxygen containing mixture
- 专利标题(中): 从含氧混合物中回收二氧化碳
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申请号: US09329279申请日: 1999-06-10
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公开(公告)号: US06174506B1公开(公告)日: 2001-01-16
- 发明人: Shrikar Chakravarti , Amitabh Gupta
- 申请人: Shrikar Chakravarti , Amitabh Gupta
- 主分类号: B01D5362
- IPC分类号: B01D5362
摘要:
A process for recovering carbon dioxide from a gas containing both carbon dioxide and oxygen wherein a carbon dioxide and oxygen containing gas is first contacted with an alkanolamine solution to produce an alkanolamine loaded with carbon dioxide and oxygen, the oxygen is separated from the absorption solution, such as by stripping with a scavenging gas, such as the carbon dioxide containing fluid obtained from the separation of carbon dioxide from the alkanolamine solution or nitrogen, prior to any heating of the absorption solution, and carbon dioxide is steam stripped from the absorption solution and recovered. By stripping the oxygen out of the alkanolamine solution, oxidative degradation of the alkanolamine can be reduced.