Method of producing gasoline hydrocarbons from methanol

Patent · Tue Nov 29 04:00:00 EST 1983

OSTI ID:5250140

Cornelius, G; Gessner, A W; Hilsebein, W; Ried, H

Gasoline hydrocarbons are produced by a catalytic conversion of methanol under a pressure of about 5 to 100 bars and at temperatures of about 250/sup 0/ to 500/sup 0/ C. The high-hydrocarbon product of the conversion is cooled so as to condense gasoline hydrocarbons. Tail gas is separated and then compressed and recycled to the conversion. In a heating step, liquid methanol is injected into a mixture of tail gas and methanol vapor and the liquid methanol is entirely evaporated. The resulting mixture of tail gas and methanol vapor is heated by about 10/sup 0/ to 40/sup 0/ C. by an indirect heat exchange with the high-hydrocarbon product. The heating step consists of the injection of liquid methanol and of the heating of the mixture of tail gas and methanol vapor and is repeated at least twice. The mixture at a temperature of about 280/sup 0/ to 360/sup 0/ C. is supplied to the catalytic conversion. Immediately before the first injection of liquid methanol, the tail gas is usually at a temperature in the range of about 60/sup 0/ to 120/sup 0/ C. The rate at which liquid methanol is injected in one heating step is preferably controlled so that the temperature of the mixture of tail gas and methanol vapor is reduced by about 10/sup 0/ to 40/sup 0/ C.

• Assignee: Metallgesellschaft Aktiengesellschaft (Germany, Federal Republic Of)
• Patent Number(s): US 4418236
• OSTI ID: 5250140
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
090210 -- Alcohol Fuels-- Properties-- (1976-1989)
10 SYNTHETIC FUELS
ALCOHOLS
CATALYSIS
CHEMICAL REACTIONS
COOLING
EVAPORATION
FUELS
GASOLINE
HEATING
HIGH TEMPERATURE
HYDROCARBONS
HYDROXY COMPOUNDS
LIQUID FUELS
MEDIUM PRESSURE
METHANOL
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PHASE TRANSFORMATIONS
PRODUCTION
SYNTHETIC FUELS