Hydrocarbon isomerization catalyst, process for its preparation,

Details Hydrocarbon isomerization catalyst, process for its preparation, Hydrocarbon isomerization catalyst, process for its preparation,

1987-07-16

1989-05-16

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

502 74, 502 78, 502 79, B01J 2912, B01J 2922

Patent

active

048309982

ABSTRACT:
Catalysts for the isomerization of hydrocarbons, particularly normal paraffins having from 4 to 7 carbon atoms, as well as a process for the preparation of the catalyst and a process for their use in the isomerization of such hydrocarbons are disclosed.
The catalysts are composed of a zeolite support impregnated with a mixture of zirconium, a refractory metallic oxide and at least one platinum-group metal.
The process for the preparation of the catalysts involves steps of depositing the zirconium, on the zeolite support, mixing (zeolite+Zr) with alumina, and depositing a platinum group metal on the mixture (zeolite+Zr)/alumina, accompanied by intermediate calcining and shaping steps, and followed by drying and final calcining steps. Alternative methods for depositing the zirconium and platinum group metals on the zeolite are disclosed.

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patent: 4255288 (1981-03-01), Cull et al.
patent: 4665272 (1987-05-01), Bakas et al.

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