Method for producing ethyl benzene by catalysis, distillation and alkylation

A technology of catalytic distillation and catalytic distillation column is applied in the field of catalytic distillation to produce ethylbenzene, and can solve the problems such as difficult to reach, low reaction speed, lowering of ethylene partial pressure and the like
CN1807373AInactive Publication Date: 2006-07-26DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2006-07-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The preparation method for ethylbenzene selects high-pure ethene or refinery dry gas as material for alkylation reaction in catalytic distillation tower. Wherein, the tower comprises a reboiler, a stripping section, a reaction section with one or more condensers to take up some heat and condense part benzene vapour to improve ethene conversion, and a condenser on tower top.
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Description

technical field

[0001] The invention relates to a method for producing ethylbenzene by catalytic distillation, in particular, a method for setting a condenser in the reaction section of a catalytic distillation column for producing ethylbenzene by catalytic distillation of benzene and ethylene to improve the conversion rate of ethylene. Background technique

[0002] USP 4849569 discloses a catalytic distillation column for mixing benzene with C 2 -C 12 The method for producing alkylbenzene by alkylation of olefins adopts molecular sieve or acid ion exchange resin as catalyst, which has the advantages of not easy deactivation of catalyst, no need for periodic regeneration, full utilization of reaction heat, and feed benzene-ene ratio can be reduced to close to 1 Etc.

[0003] USP 5476978 discloses a process for producing ethylbenzene by catalytic distillation. Fresh benzene enters a catalytic distillation column together with refluxing benzene to make the benzene in the cat...

Claims

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