Controlling hydrogen partial pressure to yield 650 .degree. F.-

Details Controlling hydrogen partial pressure to yield 650 .degree. F.- Controlling hydrogen partial pressure to yield 650 .degree. F.-

1989-07-26

1993-05-18

Myers, Helane E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208107, 208153, 208157, 208163, C10G 4702

Patent

active

052118398

ABSTRACT:
In an ebullated bed process, a nominal 1000.degree. F.+ boiling point vacuum residuum is hydrotreated at a first temperature of 750.degree. F. to 875.degree. F. and total pressure of 1900 psig to 3000 psig. Hydrogen partial pressure is controlled by changing total reactor pressure in the range of 1700 psig to 2300 psig to achieve a selected yield of 650.degree. F.- boiling material.

REFERENCES:
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patent: 3681231 (1972-08-01), Alpert et al.
patent: 3691066 (1972-09-01), Carruthers et al.
patent: 3773653 (1973-11-01), Nongbri et al.
patent: 4457834 (1984-07-01), Caspers
patent: 4551235 (1985-11-01), Carson
patent: 4684456 (1987-08-01), Van Driesen et al.

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