Why was ethanol gasoline eliminated as soon as it was developed?

The unit calorific value of ethanol is 60% lower than that of gasoline, and it is said that fuel consumption increases by only 4 5%. I believe in the theoretical situation.

But it doesn't feel like that's the case. Generally feel like a 10% increase! (I've filled half a tank and the fuel has gone up.) Perhaps the main reason is that the power is weakened, so the accelerator pedal is pressed wider, resulting in an increase in fuel consumption.

But no matter what the reason, if the ethanol gasoline runs 10% less, then the 10% ethanol mixed in is almost useless! In the end, the owner had to add more fuel to drive to the goal, and did not reduce the pure fuel consumption. For the whole country, of course, it will not serve the purpose of reducing oil imports.

And the 10% ethanol will be consumed in vain, and it is better to use it for other industrial purposes! At the same time, it is not environmentally friendly. Because an extra 10% ethanol was burned!

From the point of view of profit, it has nothing to do with two barrels of oil. Blending into 10% ethanol, the cost is not low. In the current scale of industrial ethanol production, ethanol raw materials are purchased, stored, transported, blended and treated to prevent delamination.

It seems to be more expensive than pure oil. At present, the sale of ** is about the same, and the two oils are not profitable.

And it seems that everyone suffers. From the Internet, I saw that the 15-year Anhui CPPCC member mentioned: ". .** Discount money, consumers are damaged, taxpayers are disgusted, and only ethanol gasoline manufacturers profit. Such a situation of "losing more and winning".

In the past, fuel ethanol production relied on aged grains, but it is said that it is now almost consumed. If the production of fuel ethanol from straw cellulose seems to be a bit beneficial.

But as mentioned above, if the fuel consumption increases by 10%, the 10% ethanol will not work, and it will be burned in vain, which is meaningless.

In the process of ethanol combustion, acidic substances will be produced (mainly acetic acid, acetic acid is also called acetic acid) and channeled into the oil, so that the oil is acidified prematurely and the oil change cycle is greatly shortened, and acetic acid has strong corrosiveness to metal parts, so the engine using ethanol gasoline has extremely high requirements for engine oil; There is also ethanol water absorption is too strong and the solubility of ethanol in gasoline is low in the solubility of water is extremely high, and water is insoluble in gasoline, resulting in the absence of **ethanol gasoline additives, ethanol gasoline is very prone to water and oil stratification, resulting in engine failure and insufficient combustion of ethanol gasoline and spark plug carbon deposition and combustion chamber carbon deposition (because the suction port is usually at the bottom of the fuel tank, the density of gasoline is lower than that of water, so after the ethanol gasoline appears water and oil stratification, the water will be in the lower layer, and the gasoline will be in the upper layer, At this time, the oil pump will pump the water to the fuel injector, and then enter the combustion chamber, but the water cannot be burned), so users who use ethanol gasoline must use **ethanol gasoline additives.

In summary, the use of ethanol gasoline will greatly increase the cost of car maintenance and repair. In the same volume, the calorific value of ethanol gasoline (here refers to E10 ethanol gasoline) is not as good as the calorific value of 89 gasoline, 92 gasoline, 95 gasoline and 98 gasoline, so the engine using ethanol gasoline (here refers to E10 ethanol gasoline) has poor power.

It was eliminated because it was found to produce more carbon dioxide than normal gasoline.

The first thing to say is ethanol gasoline, although it contains alcohol, but it also needs some food crops as raw materials, according to the current number of cars, estimated, in the next few years may occur, car burning oil and human beings "fighting" for rations. As a country that basically needs to import food, the "burden" of using ethanol gasoline is indeed a bit large.

Because ethanol gasoline is prone to corrosion of the engine.

Ethanol gasoline is the real culprit of emulsification of engine oil! The fuel consumption of the car increases, the cost increases, and the ethanol (water-based) enters the engine oil, which emulsifies the engine oil, which will make the engine scrapped prematurely!

Probably because the economy is too high for people to afford it.

Because it burns too much, it burns more than ordinary gasoline, although it is full.

That's because people aren't quite convinced yet.

Garbage is not recognized.

The work is reduced, and the car is not good, but it is not delayed