Ethanol production in small- to medium-size facilities for use in internal combustion engines. Final report. [30 liters per hour]
The general areas in which research has been directed are ethanol production from alternate feedstocks, stillage utilization and processing, and ethanol usage in internal combustion engines. This report covers research conducted between September 1, 1981 and August 31, 1983. Extensive research on ethanol yield from sweet potatoes has shown that alcohol production can be as high as 137 liters per tonne. Some dilution water was required to handle the sweet potato mash as a slurry. This resulted in low ethanol concentrations in the beer (6%). Fermentation of carrot culls yielded 26 to 36 liters of ethanol per tonne of carrots. As with sweet potatoes, dilution water resulted in low ethanol concentrations in the beer. Seed grain sorghum that had been chemically treated with the fungicide Captan and the pesticides heptachlor and methoxychlor was feremented and distilled. The chemical seed treatments had no significant effect on ethanol yield from grain sorghum. Captan was destroyed in the cooking process. Methoxychlor and heptachlor residue remained throughout the process and most was recovered in the wet pressed stillage solids. Research with stillage processing and treatment had the overall goal of developing processes for recovering animal and plant nutrients for reuse and reducing water pollution potential. An ethanol vaporizing system has been installed on a natural gas spark ignition engine. The system can be retrofitted to spark ignition engines without changes to the original fuel system. Vaporized 170 to 180 proof ethanol proved to be a satisfactory fuel. 56 references, 21 figures, 40 tables.
- Research Organization:
- Texas Energy and Natural Resources Advisory Council, Austin (USA)
- OSTI ID:
- 5533341
- Report Number(s):
- TENRAC/EDF-109; ON: DE84900430
- Country of Publication:
- United States
- Language:
- English
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Alcohol production from fermentation of sweet potatoes
Alcohol production from fermentation of sweet potatoes
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33 ADVANCED PROPULSION SYSTEMS
10 SYNTHETIC FUELS
AGRICULTURAL WASTES
FERMENTATION
CARROTS
ETHANOL
PRODUCTION
SORGHUM
STILLAGE
WASTE PRODUCT UTILIZATION
YAMS
ETHANOL FUELS
EXPERIMENTAL DATA
FERTILIZERS
FUEL SUBSTITUTION
INTERNAL COMBUSTION ENGINES
ALCOHOL FUELS
ALCOHOLS
BIOCONVERSION
CEREALS
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ENGINES
FOOD
FUELS
GRAMINEAE
GRASS
HEAT ENGINES
HYDROXY COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC WASTES
PLANTS
SYNTHETIC FUELS
VEGETABLES
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