Process for the dewaxing of hydrocarbon fractions

Details Process for the dewaxing of hydrocarbon fractions Process for the dewaxing of hydrocarbon fractions

1984-02-10

1986-02-25

Doll, John

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

502 77, C10G 4564

Patent

active

045727791

ABSTRACT:
A process for improving the fluidity of hydrocarbon fractions by dewaxing thereof. In the present process, hydrocarbon fractions are contacted with hydrogen in the presence of a specific type of catalyst, thereby lowering the pour point of the hydrocarbon fraction. The catalyst comprises a specific type of zeolite which is defined by a specific X-ray diffraction pattern and which has a predetermined range of mesitylene adsorption of not less than 1.6 wt %. The zeolite catalyst is obtained by providing an aqueous reaction mixture of SiO.sub.2, Al.sub.2 O.sub.3, an alkaline source as OH.sup.-, and a carboxyl group-containing organic compound having the following composition:

REFERENCES:
patent: Re28398 (1975-04-01), Chen et al.
patent: 4296083 (1981-10-01), Rollmann
patent: 4511547 (1985-04-01), Iwayama et al.

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