Method for thermal cracking of heavy petroleum oil

Details Method for thermal cracking of heavy petroleum oil Method for thermal cracking of heavy petroleum oil

1980-01-17

1982-07-20

Gantz, Delbert E.

Mineral oils: processes and products

Asphalts, tars, pitches and resins; making, treating and...

By chemical conversion of oil

C10C 300, C10C 304

Patent

active

043404642

ABSTRACT:
Disclosed is a method for the thermal cracking of a heavy petroleum oil to produce a pitch with a high aromaticity having a high softening point, the ratio of H/C of about 0.4 to 1.1 and the fraction insoluble in n-heptane but soluble in quinoline of higher than 55% by weight and an oil mainly composed of aliphatic hydrocarbon by feeding the heavy petroleum oil into a reaction system and bringing it therein into contact with a gas which does not react with the heavy petroleum oil, of a temperature in the range of from 400.degree. C. to 2000.degree. C., which method is improved by using, as the reaction system, a plurality of reaction vessels arranged in series and having their interior temperatures successively lower by a fixed step in the direction of the transfer of the charge.

REFERENCES:
patent: 2234910 (1941-03-01), Barron
patent: 2416023 (1947-02-01), Schulze et al.
patent: 2813824 (1957-11-01), Gorin
patent: 3928170 (1975-12-01), Takahashi et al.
patent: 4080283 (1978-03-01), Noguchi et al.

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