Why can't China also use the technology of ethanol-gasoline mixed fuel?

China's fuel ethanol industry exists and is doing well, but it is unknown because of its different national conditions. Since 200 1, China has carried out the pilot work of ethanol gasoline in 9 provinces and cities. Among them, Heilongjiang, Jilin, Liaoning, Henan, Anhui and Guangxi are fully utilized; Other provinces and cities include Bayannaoer, Wuhai, Xuzhou, Lianyungang, Huai 'an, Yancheng and Suqian. 7 cities of Jinan, Zaozhuang, Jining, Tai 'an, Linyi, Liaocheng and Heze in Shandong Province; 9 cities of Wuhan, Xiangfan, Jingmen, Suizhou, Xiaogan, Shiyan, Yichang, Huangshi and Ezhou in Hubei Province; Shijiazhuang, Baoding, Xingtai, Handan, Cangzhou and Hengshui in Hebei Province. In the same year, the establishment of fuel ethanol pilot enterprises was approved. In 2005, the output reached 500,000 tons, ranking third in the world in the production and application of fuel ethanol. In 2006, the output reached 1.6 million tons, which was more than 50 times higher than the 30,000 tons in 2006. At this time, problems began to appear. At that time, China used the experience of the United States for reference, and the main raw material of fuel ethanol was corn. Corn is one of the main grains in China. In China, which has just solved the problem of food and clothing, this mode of production which consumes a lot of food and occupies a lot of cultivated land is not feasible. Therefore, in June 2006, the National Development and Reform Commission adopted a series of measures to restrict the production and use of enterprises. At present, the main research direction of fuel ethanol in China is to extract biofuels from non-grain crops. Let's explain why fuel ethanol can be reused in Brazil. The main raw material of fuel ethanol in Brazil is sugarcane. Brazil is the largest producer and exporter of sugarcane in the world, and the supply of sugarcane exceeds demand. Refining fuel ethanol in large quantities can consume excess sugar cane, increase fiscal revenue and reduce waste gas, which obviously has more advantages than disadvantages for Brazil and will certainly develop in large quantities. However, the food security problem in China is still serious in remote and backward areas. In the eyes of many people, it is a waste to produce fuel ethanol that is not urgently needed at present by consuming food, and it is not in line with the national conditions. Non-food crops that can be used to produce ethanol include sweet sorghum, cassava, sugarcane, straw, waste wood and some municipal wastes. At present, China mainly focuses on the project of extracting fuel ethanol from straw. At present, straw is mainly used for natural fertilization in the field, and its use is narrow. The country has been promoting the diversification of straw utilization, and refining straw into fuel is a good way out. However, cellulose is a useful component in straw, which is difficult to industrialize, inefficient and polluting, so it has not been widely popularized. However, this situation may change. 20 14 east China university of science and technology has made a major breakthrough in this field, and put forward dry refining of lignocellulose, with 9% ethanol and less pollution. At present, it has obtained a patent, reached a cooperation with a company and started mass production. What will happen to the fuel ethanol industry in China in the future? Let's wait and see.