Multiple single-stage hydrocracking process

Details Multiple single-stage hydrocracking process Multiple single-stage hydrocracking process

1986-06-20

1987-12-15

Metz, Andrew H.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 89, 208111, 208112, 208169, C10G 6510

Patent

active

047131675

ABSTRACT:
A multiple single-stage process for the conversion of heavy hydrocarbonaceous charge stock into a lower boiling distillate hydrocarbon product. Fresh charge stock and hydrogen are introduced into a first catalytic reaction zone for substantially 100% conversion of the feed. Hydrocracked product effluent from the first hydrocracking reaction zone which comprises a predetermined distillate fraction is passed with an accucracked effluent from a second catalytic hydrocracking or accucracking reaction zone into a separation zone and separated into various hydrocarbon streams including a light hydrocarbon stream comprising the distillate product, a middle hydrocarbon stream and a heavy hydrocarbon stream. The middle hydrocarbon stream comprising said distillate fraction and hydrogen is introduced into the second catalytic hydrocracking or accucracking reaction zone for conversion into a lower boiling accucracked effluent stream comprising the distillate hydrocarbons boiling in the distillate product range. The accucracked effluent is admixed with the hydrocracked effluent as described above.

REFERENCES:
patent: 3037930 (1962-06-01), Mason
patent: 3166489 (1965-01-01), Mason et al.
patent: 3540999 (1970-11-01), Jacobs
patent: 3697413 (1972-10-01), Hamblin
patent: 3891539 (1975-06-01), Nelson et al.
patent: 4197184 (1980-04-01), Munro et al.
patent: 4404088 (1983-09-01), Batchel et al.

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