Invention Grant
- Patent Title: Process for producing cyclohexylbenzene
- Patent Title (中): 生产环己基苯的方法
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Application No.: US14373690Application Date: 2013-01-28
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Publication No.: US09458067B2Publication Date: 2016-10-04
- Inventor: Christopher L. Becker , Hari Nair , James R. Lattner , Keith H. Kuechler
- Applicant: ExxonMobil Chemical Patents Inc.
- Applicant Address: US TX Baytown
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Baytown
- Agent Stephen A. Baehl
- International Application: PCT/US2013/023437 WO 20130128
- International Announcement: WO2013/119407 WO 20130815
- Main IPC: C07C2/74
- IPC: C07C2/74 ; C07C5/367 ; C07C37/08 ; C07C45/53 ; C07C407/00

Abstract:
In a process for producing cyclohexylbenzene, hydrogen and benzene are introduced to a first hydroalkylation reaction zone which contains a hydroalkylation catalyst and which is operated under at least partly liquid phase conditions sufficient to effect hydroalkylation of benzene to produce a mixed liquid/vapor phase effluent comprising cyclohexylbenzene and unreacted benzene, wherein at least a portion of the unreacted benzene is in the vapor phase. At least a portion of the effluent is cooled to condense a liquid phase stream containing at least some of the cyclohexylbenzene in the effluent portion and leave a residual stream containing at least some of the unreacted benzene and cyclohexylbenzene. At least a portion of the liquid stream is recycled to the first hydroalkylation reaction zone or to contact the mixed phase effluent exiting the first hydroalkylation reaction zone. Other methods of cooling the reaction effluent are disclosed.
Public/Granted literature
- US20150011812A1 Process for Producing Cyclohexylbenzene Public/Granted day:2015-01-08
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