论文部分内容阅读
美国寻求替代燃料酒精始于20世纪70年代。目前 ,美国已将部分酒精加入汽油作燃料使用 ,比例为汽油90% ,乙醇10% ,名曰酒精汽油(gashol)。美国生产乙醇燃料的公司有80家左右 ,年销售作燃料的酒精41～43亿升 ,但仅占石油总销量的8% ,比例很低 ,主要原因是乙醇成本大大高于石油成本。作为可再生能源 ,酒精是一种可替换汽油的燃料。(一平)
The United States sought to replace fuel alcohol began in the 1970s. At present, the United States has added some alcohol to gasoline for fuel use, accounting for 90% of gasoline and 10% of ethanol, with the name of gashol. There are about 80 U.S. companies producing ethanol fuel, with 4-1.4 billion liters of ethanol sold annually, but accounting for only 8% of the total oil sales. The low proportion is mainly due to the fact that the cost of ethanol is much higher than the cost of oil. As a renewable energy source, alcohol is a fuel that can replace gasoline. (A flat)