Process for producing aromatic compounds from C2-C6 aliphatic hy

Details Process for producing aromatic compounds from C2-C6 aliphatic hy Process for producing aromatic compounds from C2-C6 aliphatic hy

1992-08-21

1993-11-02

Dees, Carl F.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By ring formation from nonring moiety, e.g., aromatization,...

C07C 1202

Patent

active

052585646

ABSTRACT:
A process for converting C.sub.2 to C.sub.6 aliphatic hydrocarbons to aromatics is described. The process uses a catalyst which contains a zeolite, an aluminum phosphate binder and a gallium component. Examples of zeolites which can be used are the ZSM family of zeolites, with ZSM-5 being a specific example. The catalyst is characterized in that it is tolerant to exposure to hydrogen at temperatures of about 500.degree. to about 700.degree. C. The catalyst's tolerance to hydrogen exposure is the result of treating the catalyst with an aqueous solution of a weakly acidic ammonium salt or a dilute acid solution at a temperature of about 50.degree. to about 100.degree. C. for a time of about 1 to about 48 hours, followed by calcination.

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patent: 5026937 (1991-06-01), Bricker
patent: 5073673 (1991-12-01), Hirabayashi et al.

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