Combination residue hydrodesulfurization and thermal cracking pr

Details Combination residue hydrodesulfurization and thermal cracking pr Combination residue hydrodesulfurization and thermal cracking pr

1975-07-18

1977-01-25

Horwitz, D.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

C10G 2300

Patent

active

040050068

ABSTRACT:
A process comprising passing a residual oil through a plurality of hydrodesulfurization stages in series to produce a relatively low sulfur hydrodesulfurizer residual oil effluent. A portion of desulfurized oil flowing between stages is passed through a thermal cracking zone containing a packed bed of inert solids to produce middle distillates and a cracked residual oil which is relatively high in sulfur but which contains less than 7 weight percent pentane insolubles. Because of its low aromaticity, the relatively high sulfur cracked residual oil is compatible for blending with the relatively low sulfur hydrodesulfurizer residual oil effluent.

REFERENCES:
patent: 2846373 (1958-08-01), Schutte
patent: 2852440 (1958-09-01), Smith et al.
patent: 3019272 (1962-01-01), Steinhofer et al.
patent: 3254020 (1966-05-01), Frayer et al.
patent: 3324028 (1967-06-01), Benther et al.
patent: 3598720 (1971-08-01), Stolfa
patent: 3617502 (1971-11-01), Stolfa et al.

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