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US 2010/0160704 A1Published application
Alkylation of aromatics with high activity catalyst
OwnerRobert Schmidt, Deng-Yang Jan +1inventors
InventorsRobert Schmidt, Deng-Yang Jan, Robert James
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Abstract
A process for the alkylation of aromatics such as benzene with olefins such as cumene and ethylbenzene and in a reaction zone containing high activity UZM-8 catalysts. The process is carried out at a high weight hourly space velocity (WHSV) while still achieving complete olefin conversion in the reaction zone.
Claims18
A process for producing cumene comprising:
- reacting a feed stream comprising benzene with an alkylating agent comprising propylene in a reaction zone in the presence of a UZM-8 or UZM-8HS catalyst to produce an effluent comprising cumene, wherein the length to diameter ratio for each catalyst bed in the reaction zone is between about 1.5 and 3, the alkylating agent WHSV is between about 2.1 hr−1 and about 10.0 hr−1, the reaction temperature is between about 60° and 160° C., and the molar ratio of benzene to propylene is between about 1 and about 3, and wherein the reaction results in complete olefin conversion with an end of active zone at approximately 40% into the catalyst bed.
A process for producing ethylbenzene comprising:
- reacting a feed stream comprising benzene with an alkylating agent comprising ethylene in a reaction zone in the presence of a UZM-8 or UZM-8HS catalyst to produce an effluent comprising ethylbenzene, wherein the length to diameter ratio for each catalyst bed in the reaction zone is between about 1.5 and 3, the alkylating agent WHSV is between about 1.5 hr−1 and about 4.0 hr−1, the reaction temperature is between about 150° and 280° C., and the molar ratio of benzene to ethylene is between about 1 and about 4, and wherein the reaction results in complete olefin conversion with an end of active zone at approximately 40% into the catalyst bed.
Dependencies are inferred from the claim text.