Conversion of crude methanol to gasoline with extraction

Patent · Tue Nov 24 04:00:00 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
• Country of Publication: United States
• Language: English

Related Subjects

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