Use of vacuum residue in thermal cracking

Details Use of vacuum residue in thermal cracking Use of vacuum residue in thermal cracking

1979-10-09

1981-03-24

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 86, 585251, 585324, C10G 6906

Patent

active

042578710

ABSTRACT:
Vacuum residue is used for production of olefins by first separating, preferably by solvent extraction, the asphalt therein, blending resultant asphalt depleted fraction with a lighter fraction, e.g., a vacuum gas oil, and then subjecting the blend to a conventional catalytic hydrogenation step prior to thermal cracking. The hydrogenate may be separated into fractions with the heavy fraction only being thermally cracked.

REFERENCES:
patent: 2871182 (1959-01-01), Weekman
patent: 3288703 (1966-11-01), Spars et al.
patent: 3720729 (1973-03-01), Sze et al.
patent: 3781195 (1973-12-01), Davis et al.
patent: 3898299 (1975-08-01), Jones
patent: 4167533 (1979-09-01), Raymond
patent: 4210520 (1980-07-01), Wernicke et al.

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