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Combination visbreaking and hydrorefining with recycle of hydrorefined bottoms

Patent ·
OSTI ID:6323869
;
A heavy hydrocarbon oil comprising constituents boiling above 1050/sup 0/ F is upgraded by a combination visbreaking or hydrovisbreaking and hydrorefining process in which at least a portion of the hydrorefined bottoms fraction is recycled to the visbreaking zone. The hydrorefining zone is operated at conditions to convert at least a portion of the 1050/sup 0/ F.+ constituents to lower boiling hydrocarbons.
Assignee:
Exxon Research and Engineering Co. (Canada)
Patent Number(s):
US 4462895
OSTI ID:
6323869
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKYLATED AROMATICS
AROMATICS
BOILING POINTS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROGENATION
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM RESIDUES
PHYSICAL PROPERTIES
PYROLYSIS
RECYCLING
SEPARATION EQUIPMENT
SEPARATION PROCESSES
THERMAL CRACKING
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TOLUENE
TRANSITION TEMPERATURE
VERY HIGH TEMPERATURE