发明名称 |
Process for cooling the stream leaving an ethylbenzene dehydrogenation reactor |
摘要 |
The present invention is a process for the production of styrene monomer from ethylbenzene comprising the steps of:
a) catalytically dehydrogenating said ethylbenzene in the presence of steam thereby catalytically producing a dehydrogenation effluent gas containing essentially unreacted ethylbenzene, styrene monomer, steam and divinylbenzene;
b) quenching said effluent gas with an aqueous reflux in at least a quenching column to cool said effluent gas, and thereby obtaining a gas at the overhead and in the bottom a liquid stream warmer than the aqueous reflux;
c) condensing said overhead gas thereby producing a liquid organic phase, an aqueous phase and a gaseous phase;
d) using a portion or the whole of said aqueous phase of step c) as reflux for said step b) of quenching;
e) sending to a decanter the liquid stream obtained at step b) to recover an aqueous phase and an organic phase.
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申请公布号 |
EP2065355(A1) |
申请公布日期 |
2009.06.03 |
申请号 |
EP20070291441 |
申请日期 |
2007.11.29 |
申请人 |
TOTAL PETROCHEMICALS FRANCE |
发明人 |
DERNONCOURT, RENAUD;THORET BAUCHET, JEAN-PIERRE |
分类号 |
C07C5/333 |
主分类号 |
C07C5/333 |
代理机构 |
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地址 |
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