发明名称 |
Hydroalkylation process |
摘要 |
In a process for producing phenol, benzene is hydroalkylated with hydrogen in the presence of a catalyst under conditions effective to produce a hydroalkylation reaction product comprising cyclohexylbenzene and cyclohexane. At least a portion of the cyclohexane from said hydroalkylation reaction product is then dehydrogenated to produce a dehydrogenation effluent comprising benzene, toluene and hydrogen. At least a portion of the dehydrogenation effluent is washed with a benzene-containing stream to transfer at least a portion of the toluene from the dehydrogenation effluent to the benzene-containing stream. |
申请公布号 |
US9090528(B2) |
申请公布日期 |
2015.07.28 |
申请号 |
US201214375967 |
申请日期 |
2012.11.30 |
申请人 |
ExxonMobil Chemical Patents Inc. |
发明人 |
Becker Christopher L.;Lattner James R.;Kuechler Keith H.;Nair Hari |
分类号 |
C07C45/53;C07C37/08;C07C2/74;C07C5/32;C07C5/367 |
主分类号 |
C07C45/53 |
代理机构 |
|
代理人 |
Chen Siwen;Baehl Stephen A. |
主权项 |
1. A hydroalkylation process comprising:
(a) hydroalkylating benzene with hydrogen in the presence of a catalyst under conditions effective to produce a hydroalkylation reaction product comprising cyclohexylbenzene and cyclohexane; (b) contacting at least a portion of the hydroalkylation reaction product with a dehydrogenation catalyst to produce a dehydrogenation effluent having at least a portion of the cyclohexane converted to benzene and hydrogen, wherein the dehydrogenation effluent further comprises toluene; and (c) washing at least a portion of the dehydrogenation effluent with a benzene-containing stream to produce a toluene-depleted dehydrogenation effluent and a wash stream containing at least a portion of the toluene from the dehydrogenation effluent, wherein the at least a portion of the dehydrogenation effluent is in the vapor phase and the benzene-containing stream is in the liquid phase. |
地址 |
Baytown TX US |