Maintaining catalytic activity of sodium aluminosilicates

Details Maintaining catalytic activity of sodium aluminosilicates Maintaining catalytic activity of sodium aluminosilicates

1981-09-30

1983-03-22

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208120, C10G 1105, C10G 4716

Patent

active

043774695

ABSTRACT:
The aging of a dewaxing catalyst, such as a presteamed, sodium-exchanged ZSM-5 type zeolite, is improved when the dewaxing is being conducted in the presence or absence of added gas if water or a water precursor is admixed with the feedstock.

REFERENCES:
patent: 4149960 (1979-04-01), Garwood et al.
patent: 4315814 (1981-01-01), Shihabi
John W. Ward, "The Nature of Active Sites on Zeolites", IV, The Influence of Water, J. Catalysis 11, 238-250, (1968).
T. Y. Yan, "The Promotional Effect of Water in Hydrocracking", J. Catalysis 25, 204-211, (1972).
Minachev et al., Soviet Scientific Reviews, Section B, Chemistry Reviews, vol. 2, (1980).

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