Improving the life of a catalyst used to process hydrocarbon con

Details Improving the life of a catalyst used to process hydrocarbon con Improving the life of a catalyst used to process hydrocarbon con

1984-02-17

1987-12-29

Metz, Andrew

Mineral oils: processes and products

Refining

Metal contaminant removal

208216R, 208254H, 502 30, 502 31, 502 32, C10G 4500, C03C 608

Patent

active

047159480

ABSTRACT:
In a hydrofining process, the life of a catalyst composition comprising a support selected from the group comprising alumina, silica and silica-alumina and a promoter comprising at least one metal selected from Group VIB, Group VIIB, and Group VIII of the periodic table is improved by mixing a decomposable compound of molybdenum with the hydrocarbon-containing feed stream prior to contacting the hydrocarbon-containing feed stream with the catalyst composition. The molybdenum in the decomposable compound is in valence state of zero. A sufficient quantity of the decomposable compound of molybdenum is added to the hydrocarbon-containing feed stream to result in a concentration of molybdenum in the range of about 1 to about 60 ppm. The introduction of the decomposable compound of molybdenum may be commenced when the catalyst is new, partially deactivated or spent with a beneficial result occurring in each case.

REFERENCES:
patent: 3331769 (1967-07-01), Gatsis
patent: 4285804 (1981-08-01), Jacquin et al.

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