Microscopic examination of ebullated bed process effluent to con

Details Microscopic examination of ebullated bed process effluent to con Microscopic examination of ebullated bed process effluent to con

1989-11-20

1990-10-23

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 48AA, 208112, 208157, C10G 4726

Patent

active

049649744

ABSTRACT:
In a ebullated bed process, a residual hydrocarbon oil is hydrotreated at a reaction temperature of 750.degree. F. to 875.degree. F. and pressure of 1500 psig to 10,000 psig in a single or multiple reaction zone. A sample of hydrotreated liquid effluent is flash separated to obtain a nominal 650.degree. F.+ liquid which is magnified to 100.times.. Area precent, average diameter and maximum size of insoluble agglomerates is measured from the magnified view. Reactor temperature is varied with the area percent, average diameter and maximum size of insoluble agglomerates to control downstream sediment formation and plug formation at an acceptable level.

REFERENCES:
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patent: 4158622 (1979-06-01), Schwarzenbek
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patent: 4470900 (1984-09-01), Kydd
patent: 4751187 (1988-06-01), Dickakian
patent: 4762797 (1988-08-01), Dickakian

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