Process for producing a fuel oil base material

Details Process for producing a fuel oil base material Process for producing a fuel oil base material

1996-08-13

1999-03-30

Griffin, Walter D.

Mineral oils: processes and products

Refining

Sulfur removal

208213, C10G 4500

Patent

active

058883797

ABSTRACT:
A process for producing a fuel oil base material having a lower sulfur content than that of stock oil and a dry sludge content of 0.05 mass % or less, which involves hydrotreating the stock oil having a dry sludge content of 0 to 5.0 mass % and a sulfur content of 1.0 to 10 mass % in two stages is provided, wherein the temperature of first-stage hydrotreatment is 340.degree. to 450.degree. C. and the temperature of second-stage hydrotreatment is 200.degree. to 440.degree. C. and maintained at a temperature lower than the temperature of the first-stage hydrotreatment.

REFERENCES:
patent: 3594307 (1971-07-01), Kirk
patent: 3876530 (1975-04-01), Frayer et al.
patent: 5110444 (1992-05-01), Haun et al.
patent: 5176820 (1993-01-01), Lew
patent: 5403470 (1995-04-01), Kokayeff et al.
"Modern Petroleum Technology", Edited by G.D. Hobson, Published by Applied Science Publishers Ltd--1973, No Month. pp. 366 & 369.

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