Method for reducing catalyst aging in the production of catalyti

Details Method for reducing catalyst aging in the production of catalyti Method for reducing catalyst aging in the production of catalyti

1983-01-24

1984-04-17

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

208111, 208109, C10G 4720, C10G 6512

Patent

active

044433271

ABSTRACT:
A method for stabilizing the activity of a highly siliceous zeolite used as a catalyst in the processing of hydrocarbon feedstock comprises the addition of about 0.1 to 10 weight percent olefins to the feedstock prior to contacting with said catalyst under hydrocarbon conversion conditions. The method is particularly useful when used in catalytic dewaxing processes.

REFERENCES:
patent: 2425482 (1947-08-01), Moser
patent: 3542668 (1970-11-01), Van Pool
patent: 3954600 (1976-05-01), Gladrow et al.
patent: 4035285 (1977-07-01), Owen et al.
patent: 4124650 (1978-11-01), Olavesen et al.
patent: 4172812 (1979-10-01), Winter
patent: 4361477 (1982-11-01), Miller
patent: 4377469 (1983-03-01), Shihabi

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