发明授权
- 专利标题： Process for the selective removal of hydrogen sulphide and carbonyl sulfide from light hydrocarbon gases containing carbon dioxide
- 专利标题（中）： 从含有二氧化碳的轻烃气体中选择性除去硫化氢和硫化羰的方法
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申请号： US914400申请日： 1986-10-02
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公开(公告)号： US4749555A公开(公告)日： 1988-06-07
- 发明人: Warren V. Bush
- 申请人： Warren V. Bush
- 申请人地址： TX Houston
- 专利权人： Shell Oil Company
- 当前专利权人： Shell Oil Company
- 当前专利权人地址： TX Houston
- 主分类号： B01D53/14
- IPC分类号： B01D53/14 ; C01B3/52 ; C01B17/16 ; C07C7/11 ; C10K1/14 ; C10L3/10
摘要：
The invention here disclosed is a process for the selective removal of H.sub.2 S and COS from a gas stream having a relatively large concentration of CO.sub.2 and being predominantly formed of light hydrocarbons, such as methane. This process provides for the selective solvent extraction of H.sub.2 S and COS without absorbing CO.sub.2. In this process, the solvent comprises a bridgehead amine, a tertiary amine, water, and optionally a physical solvent acceptable to COS absorption, such as sulfolane. The absorption conditions of this process comprise a pressure of from about atmospheric to about 1200 psig and a temperature of from about 40.degree. F. to about 250.degree. F. The treated stream derived from this process contains CO.sub.2 and light hydrocarbons and a near absence of H.sub.2 S and COS.
公开/授权文献
- US5857800A Annual shaft flange 公开/授权日：1999-01-12
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