High octane gasoline and distillates from oxygenates

Patent · Tue Nov 29 04:00:00 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
• Country of Publication: United States
• Language: English

Related Subjects

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