Ethanol from corn: Clean renewable fuel for the future, or drain on our resources and pockets?

被引：26

作者：

Patzek T.W. ^{[1
]}

Anti S.-M. ^{[1
]}

Campos R. ^{[1
]}

Ha K.W. ^{[1
]}

Lee J. ^{[1
]}

Li B. ^{[1
]}

Padnick J. ^{[1
]}

Yee S.-A. ^{[1
]}

机构：

[1] Department of Civil and Environmental Engineering, University of California, 437 Davis Hall, Berkeley

来源：

Environment, Development and Sustainability | 2005年 / 7卷 / 3期

关键词：

Carbon dioxide; Corn; Energy balance; Ethanol; Fuel; Nitrate; Oxygenate; Pollution; Sequestration;

D O I：

10.1007/s10668-004-7317-4

中图分类号：

学科分类号：

摘要：

It is shown here that one burns 1 gallon of gasoline equivalent in fossil fuels to produce 1 gallon of gasoline equivalent as ethanol from corn. When this corn ethanol is burned as a gasoline additive or fuel, its use amounts to burning the same amount of fuel twice to drive a car once. Therefore, the fuel efficiency of those cars that burn corn ethanol is halved. The widespread use of corn ethanol will cause manifold damage to air, surface water, soil and aquifers. The overall energy balance of corn conversion to ethanol demonstrates that 65% of the input energy is lost during the conversion. Carbon dioxide sequestration by corn is nullified when corn ethanol is burned, and there will be additional carbon dioxide, nitrous oxides, and sulfur oxide emissions from the fossil fuels used to produce the ethanol. © Springer 2005.

引用

页码：319 / 336

页数：17

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