Process for making high octane gasoline

Patent · Tue Jun 10 04:00:00 EDT 1986

OSTI ID:5416704

James, Jr, R B; Carson, D B

A process is described for simultaneously raising the octane number of a gasoline product stream and improving the cetane number and smoke point of a distillate stream, while increasing the total volume of liquid products obtained from a naphtha boiling range charge stock. The process consists of: (a) separating the charge into a natural gasoline stream comprising a lower boiling point stream essentially free of C/sub 7/ paraffins and higher boiling hydrocarbons, and a higher boiling point stream essentially free of C/sub 6/ paraffins and lower boiling hydrocarbons; (b) reacting the higher boiling stream in a reforming reaction zone, at reforming conditions and with a reforming catalyst selected to convert naphthenic hydrocarbons to aromatic hydrocarbons; (c) separating the result reforming effluent stream to recover an aromatic concentrate and a stream rich in C/sub 7/ and higher paraffins; (d) separating the paraffin rich stream to recover a light paraffin stream comprising C/sub 8/ paraffins and lower boiling hydrocarbons and a middle distillate product stream comprising C/sub 9/ and higher boiling hydrocarbons; (e) converting at least a portion of the lighter paraffin stream into a high octane gasoline component in a paraffin upgrading zone; (f) combining at least a portion of the converted light paraffin stream and the aromatic concentrate with the natural gasoline stream to recover a high octane gasoline product stream.

• Assignee: UOP Inc., Des Plaines, IL
• Patent Number(s): US 4594144
• OSTI ID: 5416704
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALKANES
ANTIKNOCK RATINGS
AROMATICS
BOILING POINTS
CATALYSTS
CATALYTIC REFORMING
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COAL TAR OILS
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASOLINE
HYDROCARBONS
LIQUID FUELS
NAPHTHA
OCTANE
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
REFORMER PROCESSES
SYNTHESIS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE