Process for refractory compound conversion in a hydrocracker recycle liquid

Patent · Tue Aug 18 04:00:00 EDT 1992

OSTI ID:7152554

Gruia, A J

This patent describes a catalytic hydrocracking process. It comprises contacting a hydrocarbonaceous feedstock; partially condensing the hydrocarbon effluent from the hydrocracking zone; introducing at least a portion of the unconverted hydrocarbon stream boiling above about 400{degrees} F and comprising trace quantities of 11{sup +} ring heavy polynuclear aromatic compounds into a 11{sup +} ring heavy polynuclear aromatic compound conversion zone; admixing at least a portion of the effluent from the conversion zone with the lower boiling hydrocarbon stream and partially condensing the resulting admixture; separating the partially condensed admixture to provide a hydrogen-rich gaseous stream and a liquid stream; separating the liquid stream comprising unconverted hydrocarbons boiling above about 400{degrees} F and lower boiling hydrocarbon products; and recycling at least a portion of the unconverted hydrocarbon stream boiling above about 400{degrees} F to the hydrocracking zone as at least a portion of the liquid recycle stream.

• Assignee: UOP, Des Plaines, IL (United States)
• Patent Number(s): A; US 5139644
• Application Number: PPN: US 7-691247
• OSTI ID: 7152554
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
023000 -- Petroleum-- Properties & Composition
AROMATICS
CATALYSTS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
HYDROCARBONS
HYDROCRACKING
INDUSTRIAL PLANTS
ORGANIC COMPOUNDS
PETROLEUM REFINERIES
POLYCYCLIC AROMATIC HYDROCARBONS
PYROLYSIS
THERMOCHEMICAL PROCESSES