发明公开
- 专利标题： Improved dehydrogenation process for production of styrene from ethylbenzene comprising low temperature heat recovery and modification of the ethyl-benzene-steam feed therewith
- 专利标题（中）： 用于从乙苯由低温热回收和修改乙苯蒸汽流，从而生产苯乙烯的脱氢工艺。
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申请号： EP86116091.9申请日： 1986-11-20
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公开(公告)号： EP0226064A2公开(公告)日： 1987-06-24
- 发明人: Sardina, Helion Herbert
- 申请人： Lummus Crest, Inc.
- 申请人地址： 1515 Broad Street Bloomfield New Jersey 07003 US
- 专利权人： Lummus Crest, Inc.
- 当前专利权人： Lummus Crest, Inc.
- 当前专利权人地址： 1515 Broad Street Bloomfield New Jersey 07003 US
- 代理机构： Gross, Gernot K.
- 优先权： US809913 19851217
- 主分类号： C07C15/46
- IPC分类号： C07C15/46 ; C07C7/04
摘要：
An improved process for the production of styrene through dehydrogenation of ethylbenzene in the presence of steam at elevated temperatures, comprising (1) recovering heat of condensation normally lost during separation of the various components of the dehydrogenation reaction effluent, especially of ethylbenzene from styrene, without need or use of a compressor and (2) using such heat to vaporize an aqueous feed mixture of ethylbenzene and dilution water that is introduced into the dehydrogenation reactor, preferably at about atmospheric pressure, thereby obviating the need to use steam to vaporize the liquid ethylbenzene feed and also enabling much of the diluent steam needed as sensible heat for the dehydrogenation reaction to be generated from water.
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