发明授权
- 专利标题: Removal of carbon dioxide from gas streams
- 专利标题(中): 从气流中去除二氧化碳
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申请号: US09442973申请日: 1999-11-18
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公开(公告)号: US06309445B1公开(公告)日: 2001-10-30
- 发明人: Craig S. Gittleman , Adeola Florence Ojo , Frank R. Fitch , Martin Bulow , Vijay R. Balse , Philip Connolly
- 申请人: Craig S. Gittleman , Adeola Florence Ojo , Frank R. Fitch , Martin Bulow , Vijay R. Balse , Philip Connolly
- 主分类号: B01D5304
- IPC分类号: B01D5304
摘要:
Carbon dioxide is removed from gas streams comprised predominantly of gases that are less strongly adsorbed than is carbon dioxide by passing the gas stream through a bed of type X zeolite having a silicon to aluminum atomic ratio not greater than about 1.15 and at least 75% of the exchangeable cations of which are potassium ions, thereby adsorbing the carbon dioxide from the gas stream. The process is particularly advantageous when applied to the removal of low levels of carbon dioxide from gas streams at temperatures of about 0 to 80° C.