Hydrocarbon conversion catalyst

Details Hydrocarbon conversion catalyst Hydrocarbon conversion catalyst

1979-12-14

1981-08-18

Dees, Carl F.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208111, B01J 2928

Patent

active

042845297

ABSTRACT:
In a process for converting a high boiling hydrocarbon charge fraction to liquid products of lower boiling range which comprises contacting said charge fraction with a crystalline zeolite characterized by a silica/alumina ratio greater than 12, a constraint index between about 1 and about 12 and an acid activity measured by the alpha scale less than 10, said contacting being conducted at 650.degree. to 850.degree. F., space velocity of 0.1 to 5.0 LHSV and a pressure not less than about 200 psi, the improvement which comprises utilizing, as catalyst, a zeolite of the above character that is prepared by steaming followed by base exchange to substantially eliminate its activity for cracking n-hexane.

REFERENCES:
patent: 3702886 (1972-11-01), Argawer et al.
patent: 3894104 (1975-07-01), Chang et al.
patent: 3899544 (1975-08-01), Chang et al.
patent: 3968024 (1976-07-01), Gorring et al.
patent: 4104320 (1978-08-01), Bernard et al.
patent: 4128592 (1978-12-01), Kaeding

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