燃料乙醇是指以玉米、甘蔗、小麦、甜菜等经济作物为原料,经过发酵、蒸馏制得乙醇,脱水后再添加变性剂,成为可用于发动机的燃料。早在20世纪30年代,燃料乙醇就被开发作为车用燃料。20世纪70年代的两次石油危机促使巴西和美国率先推行燃料乙醇发展计划,加拿大、法国、西班牙和瑞典随之效仿,形成了一定规模的生产和应用市场。随着能源需求的日益增长和石油供应紧 Fuel ethanol refers to the economy of corn, sugar cane, wheat, sugar beet and other raw materials, after fermentation, distillation of ethanol, dehydration and then add denaturant, as a fuel can be used for the engine. As early as the 1930s, fuel ethanol was developed as vehicle fuel. The two oil crises of the 1970s led Brazil and the United States to take the lead in implementing the fuel ethanol development plan. Canada, France, Spain and Sweden followed suit, forming a certain scale of production and application markets. With the increasing demand for energy and the tight supply of oil