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U.S. Department of Energy
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Method and apparatus for catalytically converting fractions of crude oil boiling above gasoline

Patent ·
OSTI ID:5648997
A method is described for upgrading a residual portion of a crude oil to form gasoline and light cycle oil which includes: (a) separating a residual portion of crude oil into a relatively low boiling fraction comprising atmospheric gas oil from a higher boiling fraction of the residual oil, (b) solvent deasphalting at least the resid portion of vacuum distillation of the higher boiling fraction and recovering a deasphalted oil product from a deasphalting solvent selected from propane, butane, pentane, hexane and combinations thereof, (c) partially hydrogenating the deasphalted oil product in the presence of a heavy vacuum gas oil fraction boiling intermediate the light vacuum gas oil and the vacuum resid, (d) passing the partially hydrogenated oil product mixed with an atomizing diluent material in contact with an upwardly flowing low coke producing crystalline zeolite containing catalyst suspended in a gas comprising hydrogen in a first riser heavy oil feed hydrocarbon conversion zone, (e) passing the separated low boiling fraction of crude oil with light vacuum gas oil in contact with a separate rising suspension of the elevated temperature low coke producing crystalline zeolite containing catalyst suspended in a gas comprising hydrogen in a second riser hydrocarbon conversion zone.
Assignee:
NOV; NOV-85-013598; EDB-86-125406
Patent Number(s):
US 4584090
OSTI ID:
5648997
Country of Publication:
United States
Language:
English