发明申请
- 专利标题： Process for recovering lower carbon olefins from product gas for production of olefins
- 专利标题（中）： 从用于生产烯烃的产物气中回收低碳烯烃的方法
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申请号： US11529517申请日： 2006-09-29
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公开(公告)号： US20080209942A1公开(公告)日： 2008-09-04
- 发明人: Zhenwei Wang , Zaihang Sheng , Xueliang Zhao
- 申请人： Zhenwei Wang , Zaihang Sheng , Xueliang Zhao
- 申请人地址： CN Beijing CN Beijing
- 专利权人： CHINA PETROLEUM & CHEMICAL CORPORATION,SINOPEC ENGINEERING INCORPORATION
- 当前专利权人： CHINA PETROLEUM & CHEMICAL CORPORATION,SINOPEC ENGINEERING INCORPORATION
- 当前专利权人地址： CN Beijing CN Beijing
- 优先权： CN2005-1015587.3 20050929
- 主分类号： F25J3/00
- IPC分类号： F25J3/00
摘要：
The present invention concerns a process for recovering lower carbon olefins from MTO or DTO product gas. Said process primarily comprises the product gas compressing, pre-deethanizing, demethanizing and ethylene recovering apparatus, depropanizing column, ethylene rectification column, propylene rectification column and the like. In addition, the process of the present invention needs no independent ethylene cooling system, and the ethylene recovery rate may achieve 99.5%.
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