发明申请
US20090226364A1 Process for treating acid gas in staged furnaces with inter-stage heat recovery and inter-stage sulfur production
审中-公开
在阶段热回收和阶段内硫生产的阶段炉中处理酸性气体的方法
- 专利标题： Process for treating acid gas in staged furnaces with inter-stage heat recovery and inter-stage sulfur production
- 专利标题（中）： 在阶段热回收和阶段内硫生产的阶段炉中处理酸性气体的方法
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申请号： US12074954申请日： 2008-03-07
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公开(公告)号： US20090226364A1公开(公告)日： 2009-09-10
- 发明人: Zeru Berhane Tekie , Luis Alberto Chu , Eugene F. Hartstein
- 申请人： Zeru Berhane Tekie , Luis Alberto Chu , Eugene F. Hartstein
- 申请人地址： US DE Wilmington
- 专利权人： E. I. du Pont de Nemours and Company
- 当前专利权人： E. I. du Pont de Nemours and Company
- 当前专利权人地址： US DE Wilmington
- 主分类号： C01B17/04
- IPC分类号： C01B17/04 ; B01D53/48
摘要：
A process for treating acid gases comprising hydrogen sulfide comprises introducing a first acid gas and a first oxygen-containing gas into a reducing furnace to produce a first oxidized gas stream, cooling the first oxidized gas stream in a first heat recovery system, introducing the cooled gas stream into a sulfur condenser to produce a sulfur-stripped gas, introducing the sulfur-stripped gas and a second oxygen-containing gas into an oxidizing furnace to produce a second oxidized gas stream and cooling the second oxidized gas stream in a second heat recovery system. The first acid gas can be acid gas comprising hydrogen sulfide produced in refineries. The spent acid can be spent sulfuric acid from a sulfuric acid alkylation process. The cooled second oxidized gas stream can be further treated in a spent acid recovery plant or a sulfur recovery unit.
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