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A few days ago, Hebei Province Development and Reform Commission and other 10 departments jointly issued the "Hebei Province vehicle ethanol gasoline promotion plan." It is mentioned in the plan that six cities in southern Hebei Province (Shijiazhuang, Baoding, Xingtai, Handan, Cangzhou and Hengshui) have closed the basis of ethanol gasoline for transportation, starting from June 1, 2019, the use of vehicle ethanol gasoline has been popularized in Chengde, Zhangjiakou, Tangshan, Qinhuangdao and Langfang, and the province-wide closed operation has been realized by the end of December, except for military special needs, national and special reserves and oil for industrial production. Basically achieve the province's automotive ethanol gasoline instead of ordinary gasoline.

As soon as the news came out, netizens immediately talked about it, among which the most discussed was the decline in vehicle power caused by ethanol gasoline, damage to vehicles and other issues.

So what exactly is ethanol gasoline? Domestic promotion of ethanol gasoline and ordinary gasoline, a total of four labels, respectively, E89, E92, E95 and E98, in fact, our usual fuel label is preceded by an E. It's actually a mixture of 90% regular gasoline and 10% fuel ethanol. Ethanol is not a common industrial alcohol, but is generally processed from sorghum, corn and so on. This can not only reduce the use of oil resources, but also promote agricultural ecology.

However, ethanol gasoline actually has some disadvantages: power decline: the calorific value of ethanol gasoline is low, which will lead to the decline of vehicle power and poor acceleration performance, especially in low temperature environment. Increased fuel consumption: the calorific value of ethanol is 67% of conventional automotive gasoline, and the fuel consumption will increase by about 5% when using mixed gasoline containing 10% (v / w) ethanol. Damaged vehicles: ethanol gasoline has a certain hydrophilicity, car fuel tank, oil road moisture and glue, will affect the normal operation of vehicles using ethanol gasoline.

Isn't it impossible to use ethanol gasoline? In fact, because in terms of daily use, these minor drawbacks are not a problem at all. Ethanol gasoline because of the addition of "ethanol", so the oxygen content is higher than ordinary gasoline, the engine will now offset the calorific value problem, so there is little feeling in daily use. And in the northeast region of the long-term use of feedback, fuel consumption is also high 0.5L/100km or so.

In addition, with regard to the problem of ethanol gasoline corroding the engine, in fact, most of the models on sale in China are allowed to use ethanol gasoline with no more than 10% ethanol, and relatively attention should be paid to the rubber accessories in the vehicle oil road. it is easy to corrode and crack over a long time. In addition, because ethanol gasoline has a certain cleaning ability, it may cause impurities in the cylinder and oil road to block the fuel injection nozzle and other problems. Speaking of which, we all have a certain understanding of ethanol gasoline. In essence, the implementation of ethanol gasoline will help our country save oil resources and promote agricultural development. As for the price issue that people are most worried about, it is believed that after comprehensive promotion, it will be about the same as the current oil price.

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