Conversion of crude methanol to gasoline with extraction

Patent · Tue Nov 24 00:00:00 EST 1987

OSTI ID:5750952

Harandi, M N; Owen, H; Smyth, S C

A continuous process for converting crude methanol to gasoline boiling range hydrocarbons in a catalytic reaction zone with a crystalline acid zeolite catalyst at elevated temperature and pressure is described comprising the steps of: (a) contacting a crude methanol feedstock containing a minor amount of water with a liquid hydrocarbon extraction stream under extraction conditions favorable to selective extraction of the methanol, thereby providing an extract liquid stream rich in methanol and an aqueous raffinate stream lean in methanol; (b) charging the extracted methanol substantially free of water to the reaction zone under process conditions to convert substantially all methanol to hydrocarbons; (c) cooling reaction effluent to recover aqueous liquid by-product stream, gas rich in C/sub 2/ + hydrocarbons, liquid rich in C/sub 3/-C/sub 4/ and C/sub 5/ + hydrocarbons; and (d) contacting crude methanol feedstock with at least a portion of the liquid hydrocarbons employed as extraction liquid.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4709113
• OSTI ID: 5750952
• Resource Relation: Patent File Date: Filed date 29 Apr 1987
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
GASOLINE
PRODUCTION
METHANOL
ACIDIFICATION
SOLVENT EXTRACTION
AQUEOUS SOLUTIONS
CATALYTIC EFFECTS
PRESSURE DEPENDENCE
PROCESSING
TEMPERATURE DEPENDENCE
ZEOLITES
ALCOHOLS
DISPERSIONS
EXTRACTION
FUELS
HYDROXY COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MATERIALS
MINERALS
MIXTURES
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SEPARATION PROCESSES
SOLUTIONS
090200* - Alcohol Fuels- (-1989)