Selective production of para-dialkyl substituted benzenes

Details Selective production of para-dialkyl substituted benzenes Selective production of para-dialkyl substituted benzenes

C - Chemistry, Metallurgy

07

C

C07C 15/08 (2006.01) B01J 31/02 (2006.01) C07C 2/66 (2006.01) C07C 5/52 (2006.01) C07C 6/12 (2006.01)

Patent

CA 2187871

A process is provided for selective catalytic conversion of certain hydrocarbon feedstocks to product rich in para-dialkyl substituted benzenes. The catalyst employed in the process comprises a crystalline material having the structure of PSH-3, MCM-22 or MCM-49, or a mixture of said crystalline materials, said crystalline material having been treated with a selectivating agent, such as a silicon compound, which decomposes to oxide or non-oxide ceramic or solid-state carbon species.

Procédé de conversion de catalytique sélective de certaines charges d'alimentation d'hydrocarbures en un produit riche en benzènes à substitution para-dialkyle. Le catalyseur utilisé dans les procédés comprend une matière cristalline présentant la structure de PSH-3, MCM-22 ou MCM-49, ou bien un mélange desdites matières cristallines, la matière cristalline ayant été traitée à l'aide d'un agent de sélectivité, tel qu'un composé de silicium, lequel se décompose en espèces de céramique à oxyde ou sans oxyde ou de carbone solide.

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