Process for hydrotreating heavy oils containing metals

Details Process for hydrotreating heavy oils containing metals Process for hydrotreating heavy oils containing metals

1980-05-15

1982-07-20

Vertiz, O. R.

Mineral oils: processes and products

Refining

Sulfur removal

208251H, C10G 2302

Patent

active

043404669

ABSTRACT:
A process for catalytically hydrotreating a heavy oil containing soluble metals in two steps at a temperature of 320.degree. to 470.degree. C. and a hydrogen pressure of 30 to 350 kg/cm.sup.2, wherein the oil is substantially desulfurized in the first step in the presence of a first-step catalyst and then demetallized in the second step in the presence of a second-step catalyst, the desulfurization selectivity (as defined in the specification) of the first-step catalyst being higher than that of the second-step catalyst. According to this process, the metal content and the sulfur content of the treated oil can be prescribed at the desired levels, and a low-sulfur, low-metal oil can be obtained with a relatively small amount of hydrogen chemically consumed.

REFERENCES:
patent: 3817855 (1974-06-01), Smith et al.
patent: 3860510 (1975-01-01), Henke et al.
patent: 3923635 (1975-12-01), Schulman et al.
patent: 4017382 (1977-04-01), Bonnell et al.
patent: 4048060 (1977-09-01), Riley
patent: 4152250 (1979-05-01), Inooka et al.
patent: 4166026 (1979-08-01), Fukui et al.

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