Ethylbenzene production employing tea-silicate catalysts
AssigneeCosden Technology, Inc.
InventorsJames R. Butler, Cleve H. Forward, Thomas W. Robison
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Abstract
A process for producing ethylbenzene by catalytic alkylation employing a TEA-silicate catalyst material and steam co-feed are described. Excellent conversion, selectivity and xylene suppression can be obtained under vapor phase alkylation conditions during production of ethylbenzene using TEA-silicate catalysts and steam co-feed.
Claims10
A process for producing ethylbenzene comprising contacting benzene and ethylene under alkylation conditions which include an effective amount of steam, in the presence of a TEA-silicate catalyst material, the presence of said steam effecting increased catalytic conversion to ethylbenzene.
A catalytic vapor phase alkylation process for producing ethylbenzene comprising:
- (a) introducing benzene and ethylene reactants into a reaction zone maintained at alkylation conditions and comprising a TEA-silicate catalyst material;
- (b) co-feeding steam with said reactants in an amount of from about 20,000 to about 60,000 ppm based on the amount of benzene, into said reaction zone;
- and
- (c) withdrawing from said reaction zone ethylbenzene product.
A method for reducing xylene by-product production during catalytic alkylation of benzene to ethylbenzene comprising:
- co-feeding an effective amount of steam under alkylation reaction conditions, the presence of said steam reducing the amount of xylene by-product production, and
- employing a TEA-silicate catalyst material.
Dependencies are inferred from the claim text.