发明授权
- 专利标题： Process for the high recovery efficiency of sulfur from an acid gas stream
- 专利标题（中）： 从酸性气体流中硫的高回收效率的方法
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申请号： US11070117申请日： 2005-03-02
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公开(公告)号： US07351392B2公开(公告)日： 2008-04-01
- 发明人: Jen Kai Chen , Michael Arthur Huffmaster
- 申请人： Jen Kai Chen , Michael Arthur Huffmaster
- 申请人地址： US TX Hosuton
- 专利权人： Shell Oil Company
- 当前专利权人： Shell Oil Company
- 当前专利权人地址： US TX Hosuton
- 代理商 Charles W. Stewart
- 主分类号： C01B17/04
- IPC分类号： C01B17/04 ; C01B17/05
摘要：
A combined process for the recovery of sulfur from an acid gas stream. The combined process includes both a Claus unit and a unit for treating the Claus tail gas with caustic to remove hydrogen sulfide therefrom and to biologically oxidize the hydrogen sulfide using certain types of sulfur bacteria to make elemental sulfur. The combined process provides for an exceptionally low concentration of hydrogen sulfide in the finally treated sweet gas.
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