Combination process for the conversion of a distillate hydrocarbon to maximize middle distillate production

Patent · Tue Apr 28 04:00:00 EDT 1987

OSTI ID:6468669

Humbach, M J; Hale, J G

A process is described for the conversion of an aromatic-rich, distillable gas oil charge stock which is essentially free from asphaltenic hydrocarbons. This process possesses an aromatic hydrocarbon concentration greater than about 20 volume percent to selectively produce large quantities of high quality middle distillate while minimizing hydrogen consumption. The steps for the process are: reacting the charge stock with hydrogen, in a catalytic hydrocracking reaction zone, at hydrocracking conditions; separating the resulting hydrocracking reaction zone effluent to provide a middle distillate product stream and a paraffin-rich hydrocarbonaceous stream; recovering the middle distillate product stream; reacting the paraffin-rich hydrocarbonaceous stream in a non-catalytic thermal reaction zone at mild thermal cracking conditions including an elevated temperature; separating the non-catalytic thermal reaction zone effluent to provide a fraction boiling and a hydro-carbonaceous stream boiling; and reacting at least a portion of the hydrocarbonaceous stream boiling.

• Assignee: UOP Inc., Des Plaines, IL
• Patent Number(s): US 4661238
• OSTI ID: 6468669
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKANES
AROMATICS
ASPHALTENES
ASPHALTS
BITUMENS
BOILING POINTS
CATALYSTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CONSUMPTION RATES
CRACKING
DECOMPOSITION
DISTILLATES
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GAS OILS
HIGH TEMPERATURE
HYDROCARBONS
HYDROCRACKING
HYDROGEN
MEDIUM PRESSURE
NONMETALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PARAFFIN
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PYROLYSIS
QUANTITY RATIO
SYNTHESIS
TAR
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
WAXES