High octane gasoline and distillates from oxygenates

Patent · Tue Nov 29 00:00:00 EST 1988

OSTI ID:6480865

Harandi, M N; Owen, H

This patent describes an integrated process for the conversion of methanol to high octane gasoline and distillate, comprising the steps of: (a) contacting oxygenated hydrocarbon feed with solid conversion catalyst in a conversion zone with oxygenate conversion conditions to produce an effluent stream comprising a major portion of olefinic hydrocarbons wherein the catalyst has a moderately low Bronsted acid activity; (b) fractionating the effluent stream to produce olefinic hydrocarbon streams comprising, first C/sub 2/-olefinic stream, second C/sub 3/ olefinic stream, third C/sub 4/ and C/sub 5/ olefinic stream, fourth C/sub 6/ and C/sub 7/ olefinic stream and fifth C/sub 8/ + olefinic stream; (c) passing the second C/sub 3/ olefinic stream and the fourth C/sub 6/ and C/sub 7/ olefinic stream to an olefins oligomerization zone under oligomerization conditions in contact with medium pore size selective zeolite catalyst whereby C/sub 5/ + gasoline and distillate are produced; (d) passing a hydrocarbon feedstream comprising a portion of step (c) C/sub 5/ + gasoline, step (b) third C/sub 4/ and C/sub 5/ olefinic hydrocarbon stream in conjunction with a methanol feedstream to an etherification zone in contact with an acid etherification catalyst under etherification conditions to produce a mixture of high octane either-rich gasoline; (e) recovering a stream comprising unreacted methanol and C/sub 4/ and C/sub 5/ hydrocarbons and a stream comprising ether-rich gasoline; (f) passing step (e) stream comprising unreacted methanol and C/sub 4/ and C/sub 5/ hydrocarbons to step (c) oligomerization zone for conversion to gasoline and distillate.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4788365
• OSTI ID: 6480865
• Resource Relation: Patent File Date: Filed date 8 Dec 1987
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
GASOLINE
PRODUCTION
METHANOL
PROCESSING
PETROLEUM DISTILLATES
ACIDIZATION
ANTIKNOCK RATINGS
CATALYSTS
FRACTIONATION
ZEOLITES
ALCOHOLS
DISTILLATES
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROXY COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
SEPARATION PROCESSES
020400* - Petroleum- Processing