Distillate hydrofining catalyst and a process for the preparatio

Details Distillate hydrofining catalyst and a process for the preparatio Distillate hydrofining catalyst and a process for the preparatio

1997-06-30

1999-06-22

Lewis, Michael

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

Catalyst or precursor therefor

Halogen or compound containing same

502224, 502229, 502231, 502305, 502315, 502335, 502337, B01J 2330, B01J 23755, B01J 2712, B01J 27132

Patent

active

059142901

ABSTRACT:
The present invention discloses a hydrofining catalyst. The catalyst has the following composition based on the total weight of the entire catalyst composition: 1-5%(wt.) nickel oxide, 12-35% (wt.) tungsten oxide, 1-9% (wt.) fluorine, and the balancing amount of composite alumina. Said composite alumina is composed of one or several kinds of micropore alumina and one or several kinds of macropore alumina, wherein the weight ratio of micropore alumina to macropore alumina is 75:25 to 50:50. The term "micropore alumina" in the context means the alumina in which the volume of the proe of diameter less than 80 angstrom occupies more than 95% of its total pore volume, while the term "macropore alumina" in the contest means the alumina in which the volume of the pore of diameter 60-600 angstrom occupies more than 70% of its total pore volume. The pore distribution mentioned above is determined by BET method of nitrogen adsorption at low temperature. This catalyst is especially suitable for the hydrofining of inferior distillates with high sulfur content and boiling range of 80-550.degree. C.

REFERENCES:
patent: 3779903 (1973-12-01), Levinson
patent: 4330395 (1982-05-01), Pott et al.

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