“gasohol”的概念、定义、翻译、参考文献-科学参考

gasohol

Chemistry

A mixture of petrol (gasoline) and alcohol (i.e. typically ethanol at 10%, or methanol at 3%), used as an alternative fuel for cars and other vehicles in many countries. The ethanol is obtained as a biofuel by fermentation of agricultural crops or crop residues, for example sugar cane waste. Many cars can also use a mixture of 85% ethanol and 15% petrol, called E85. Ethanol-based gasohol has a higher octane rating and burns more completely than conventional petrol, thus lowering some emissions. However, the ethanol can damage certain engine components, such as rubber seals. Methanol-based gasohol is more toxic and corrosive, and its emissions include formaldehyde, a known carcinogen.

Chemical Engineering

A liquid fuel comprising a blend of alcohol and gasoline. Ethanol-based gasohol is a blend of typically 10 per cent ethanol and 90 per cent gasoline in which the ethanol is produced from the fermentation of agricultural crops such as maize or sugar cane. Methanol and wood alcohol are also used in other blends. The fuel is used in certain types of combustion engines and noted for its high octane and anti-knock properties.

Biology

A mixture of petrol (gasoline) and a relatively small proportion of alcohol (i.e. typically ethanol at 5% or 10%) that can be used as an alternative fuel for cars and other vehicles without modification of the engine. The percentage of ethanol in the fuel is denoted by the E number, e.g. E10. Ethanol-based gasohol has a higher octane rating and burns more completely than conventional petrol, thus lowering some harmful emissions. Often the ethanol is obtained as a biofuel by fermentation of agricultural crops or crop residues, (e.g. sugar cane waste). Vehicle engines can also be modified to use mixtures containing greater proportions of ethanol. For example, blends with over 20% ethanol have been used in Brazil since the 1970s, and a mixture of 85% ethanol and 15% petrol, called E85, is available for flexi-fuel vehicles in some countries.

单词	gasohol
释义	gasohol Chemistry A mixture of petrol (gasoline) and alcohol (i.e. typically ethanol at 10%, or methanol at 3%), used as an alternative fuel for cars and other vehicles in many countries. The ethanol is obtained as a biofuel by fermentation of agricultural crops or crop residues, for example sugar cane waste. Many cars can also use a mixture of 85% ethanol and 15% petrol, called E85. Ethanol-based gasohol has a higher octane rating and burns more completely than conventional petrol, thus lowering some emissions. However, the ethanol can damage certain engine components, such as rubber seals. Methanol-based gasohol is more toxic and corrosive, and its emissions include formaldehyde, a known carcinogen. Chemical Engineering A liquid fuel comprising a blend of alcohol and gasoline. Ethanol-based gasohol is a blend of typically 10 per cent ethanol and 90 per cent gasoline in which the ethanol is produced from the fermentation of agricultural crops such as maize or sugar cane. Methanol and wood alcohol are also used in other blends. The fuel is used in certain types of combustion engines and noted for its high octane and anti-knock properties. Biology A mixture of petrol (gasoline) and a relatively small proportion of alcohol (i.e. typically ethanol at 5% or 10%) that can be used as an alternative fuel for cars and other vehicles without modification of the engine. The percentage of ethanol in the fuel is denoted by the E number, e.g. E10. Ethanol-based gasohol has a higher octane rating and burns more completely than conventional petrol, thus lowering some harmful emissions. Often the ethanol is obtained as a biofuel by fermentation of agricultural crops or crop residues, (e.g. sugar cane waste). Vehicle engines can also be modified to use mixtures containing greater proportions of ethanol. For example, blends with over 20% ethanol have been used in Brazil since the 1970s, and a mixture of 85% ethanol and 15% petrol, called E85, is available for flexi-fuel vehicles in some countries.
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