Energy balance for ethyl alcohol production from crops
Journal Article
·
· Science; (United States)
OSTI ID:6494035
- Universidade Estadual Paulista, Sao Paulo, Brazil
Energy requirements to produce ethyl alcohol from three different crops in Brazil (sugar cane, cassava, and sweet sorghum) were calculated. Figures are presented for the agricultural and industrial phases. The industrial phase is always more energy-intensive, consuming from 60 to 75% of the total energy. Sugar cane is the more efficient crop for ethyl alcohol production, followed by sweet sorghum and cassava from a net energy viewpoint. The utilization of sweet sorghum stems might increase the total energy gain from this crop to almost the same level as sugar cane. Cassava has a lower energy gain at the present state of agriculture in Brazil.
- OSTI ID:
- 6494035
- Journal Information:
- Science; (United States), Vol. 201:4359
- Country of Publication:
- United States
- Language:
- English
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10 SYNTHETIC FUELS
ALCOHOL FUELS
NET ENERGY
CASSAVA
FERMENTATION
ETHANOL
BIOSYNTHESIS
SORGHUM
SUGAR CANE
BRAZIL
ALCOHOLS
BIOCONVERSION
CEREALS
ENERGY ANALYSIS
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090220* - Alcohol Fuels- Preparation- (1976-1989)
ALCOHOL FUELS
NET ENERGY
CASSAVA
FERMENTATION
ETHANOL
BIOSYNTHESIS
SORGHUM
SUGAR CANE
BRAZIL
ALCOHOLS
BIOCONVERSION
CEREALS
ENERGY ANALYSIS
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GRAMINEAE
GRASS
HYDROXY COMPOUNDS
LATIN AMERICA
ORGANIC COMPOUNDS
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090220* - Alcohol Fuels- Preparation- (1976-1989)