On board dimethyl ether generation to assist methanol engine cold starting
Conference
·
OSTI ID:5845899
Dimethyl ether has high vapor pressure and wide flammability limits, which make it an excellent fuel for cold starting methanol engines. The authors have investigated the catalytic dehydration of methanol to produce dimethyl ether on board methanol-fueled vehicles. They tested four methanol dehydration catalysts in a microcatalytic plug flow reactor and found that a fluorinated /gamma/-alumina was very active and selective for methanol dehydration in the 250-350/sup 0/C (482-662/sup 0/F) temperature range. They also tested the fluorinated /gamma/-alumina catalyst with a 15% gasoline/85% methanol mixture (M85) and found that the catalyst activity decreased in proportion to the gasoline content but that no catalyst deactivation occurred.
- OSTI ID:
- 5845899
- Report Number(s):
- CONF-8810120-
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
090210* -- Alcohol Fuels-- Properties-- (1976-1989)
10 SYNTHETIC FUELS
33 ADVANCED PROPULSION SYSTEMS
330800 -- Emission Control-- Alternative Fuels
ADDITIVES
ALCOHOLS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
COMBUSTION PROPERTIES
ENGINES
ETHERS
FUEL ADDITIVES
FUEL SUBSTITUTION
FUELS
GASOLINE
HEAT ENGINES
HYDROXY COMPOUNDS
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
METHANOL
METHYL ETHER
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
START-UP
023000 -- Petroleum-- Properties & Composition
090210* -- Alcohol Fuels-- Properties-- (1976-1989)
10 SYNTHETIC FUELS
33 ADVANCED PROPULSION SYSTEMS
330800 -- Emission Control-- Alternative Fuels
ADDITIVES
ALCOHOLS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
COMBUSTION PROPERTIES
ENGINES
ETHERS
FUEL ADDITIVES
FUEL SUBSTITUTION
FUELS
GASOLINE
HEAT ENGINES
HYDROXY COMPOUNDS
INTERNAL COMBUSTION ENGINES
LIQUID FUELS
METHANOL
METHYL ETHER
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
START-UP