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Title: Process for the preparation of ethyl benzene

Ethyl benzene is produced in a catalyst bed under 0.25 to 50 atmospheres of pressure and at temperatures in the range of 50 C to 300 C, using as the catalyst a mole sieve characterized as acidic by feeding ethylene to the catalyst bed while benzene is conveniently added through the reflux to result in a molar excess present in the reactor to that required to react with ethylene, thereby reacting substantially all of the ethylene and recovering benzene as the principal overhead and ethyl benzene and diethyl benzene in the bottoms. The bottoms are fractionated, the ethyl benzene recovered and the bottoms are contacted with benzene in the liquid phase in a fixed bed straight pass reactor under conditions to transalkylate the benzene thereby converting most of the diethyl benzene to ethyl benzene which is again separated and recovered. 2 figs.
Inventors:
; ;
Issue Date:
OSTI Identifier:
170452
Assignee:
Chemical Research and Licensing Co., Pasadena, TX (United States) PTO; SCA: 400201; PA: EDB-96:028860; SN: 96001517612
Patent Number(s):
US 5,476,978/A/
Application Number:
PAN: 7-796,022
Contract Number:
FC07-80CS40454
Resource Relation:
Other Information: PBD: 19 Dec 1995
Research Org:
CR & L/NEOCHEM JOINT VENTURE
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; ALKYLATED AROMATICS; PRODUCTION; BENZENE; ALKYLATION; MOLECULAR SIEVES; CATALYSTS; ETHYLENE; MATERIALS RECOVERY; FRACTIONATION; CHEMICAL REACTORS

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