Crude oil refining

Patent · Tue Jan 21 04:00:00 EST 1986

OSTI ID:5944605

Montgomery, D P; Gall, J W; Davis, D E

This patent describes a method for improving the value of the product mix obtained from the refining of a crude oil in a process in which a crude oil feed is fractionated, hydrofined and cracked. As a result, a first gas oil fraction from the fractionation of the crude oil is cracked in a first catalytic cracking process, topped crude from the fractionation of the crude oil is hydrofined to produce at least a heavy hydrofined fraction, wherein at least a portion of the heavy hydrofined fraction is cracked in a second catalytic cracking process to produce at least a first heavy cycle oil fraction, wherein at least a second heavy cycle oil fraction is produced by the first catalytic cracking process. The method consists of recycling the first heavy cycle oil fraction from the second catalytic cracking process as a feed to the process in which the topped crude is hydrofined, and the step of recycling the second heavy cycle oil fraction from the first catalytic cracking process as a feed to the process in which the topped crude is hydrofined.

• Assignee: Phillips Petroleum Co., Bartlesville, OK
• Patent Number(s): US 4565620
• OSTI ID: 5944605
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYTIC CRACKING
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FRACTIONATION
FUELS
GAS OILS
HYDROGENATION
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PROCESSING
PYROLYSIS
RECYCLING
REFINING
SEPARATION PROCESSES
THERMOCHEMICAL PROCESSES
VISCOSITY