Do you know what advantages and disadvantages of ethanol gasoline?

According to the program, by 2020, the country will basically achieve full Coilovers coverage of automotive ethanol gasoline. This means that the vast majority of owners are widely criticized ethanol gasoline will not only withdraw from the market, but to fully promote the. The reason is naturally high-sounding: ethanol gasoline can effectively reduce the car exhaust gas emissions, fine particulate emissions and other harmful substances pollution; with excessive use of corn, waste straw as raw materials, produce clean gasoline, can help solve the current problems Many people haze and other issues; ethanol can also replace part of the oil, for energy security is very important ... ...
So what is the difference between this ethanol and ordinary gasoline? Why do not owners like alcohol gasoline? Today, the old Hou to tell you about those things that ethanol gasoline.
What is ethanol gasoline?
Ethanol, commonly known as alcohol, ethanol gasoline is a kind of grain and a variety of plant fiber processed into a denatured fuel ethanol and ordinary gasoline by a certain proportion of the formation of new alternative energy sources. In accordance with China's national standards, ethanol gasoline is 90% of the ordinary gasoline and 10% of the fuel ethanol blend.
Ethanol gasoline and ordinary gasoline is the difference between the composition. Ordinary gasoline main components include alkanes, olefins, aromatics, are hydrocarbons, and ethanol is a hydrocarbon compound. Ethanol gasoline added ethanol, to the gasoline into the oxygen. This result: less hydrogen, more oxygen, gasoline calorific value reduced. Ethanol calorie is about 60% of gasoline, with a 10% ratio of the adjustment, the total calorific value of about 4% less. In other words, usually a box of oil can adjustable coilovers run 500km, plus ethanol gasoline can only run 480km, and the car's power as pure gasoline vehicles.
Characteristics of Ethanol Gasoline for Vehicles
1, vehicle ethanol gasoline cleaning characteristics
Ethanol in ethanol is a good performance of organic solvents, with a strong dissolution cleaning characteristics.
2, car with ethanol gasoline hydrophilic characteristics
Ethanol in ethanol is a hydrophilic liquid that can be any more soluble than water. Therefore, the vehicle ethanol gasoline in the deployment of production and storage sales, waterproofing is a strict technical requirements.
3, vehicle ethanol gasoline swelling characteristics
Ethanol is a good organic solvent, ethanol gasoline compared to ordinary gasoline, the vehicle fuel supply system in the rubber washers, plastic and other components will have some swelling and erosion, so these parts of the material need to do some special treatment.
4, the combustion characteristics of ethanol gasoline
Automotive ethanol gasoline compared to ordinary gasoline, burning a little slower, the theoretical air-fuel ratio of about 14: 1 (ordinary gasoline theoretical air-fuel ratio is 14.7: 1). Therefore, the vehicle in the use of automotive ethanol gasoline, air-fuel ratio and ignition time should be adjusted to adapt to the best results and fuel consumption (the current engine can automatically learn and adapt).
Which areas of China use ethanol gasoline
At present, the national use of ethanol gasoline region, including Heilongjiang Province, Jilin Province, Liaoning Province, Henan Province, Anhui Province, Hebei Province, Shijiazhuang, Baoding, Cangzhou, Hengshui, Handan, in addition to Hubei Province, some cities, northern Jiangsu and Shandong Southwest unit. In these areas to promote the use of ethanol gasoline. Ethanol gasoline consumption accounts for the same period the national gasoline consumption of the total 1/5.
How does ethanol gasoline produce?
Most of the current ethanol raw materials are made from corn, using bio-fermentation methods. In the future, people will use waste straw, forestry waste and other starch content of high fiber as raw materials. The basic process is the acquisition of grain from the countryside, into the chemical plant for fermentation, to produce T3 turbo kit ethanol, and then sent to the refinery and gasoline by a certain percentage of mixed.
What is the identification of ethanol gasoline?
E is the label of ethanol, ethanol gasoline in the gas station unified logo are E92, E95.
Advantages of Ethanol Gasoline:
(1) octane high, good anti-explosive, able to adapt to a higher compression ratio, not easy to knock;
(2) high oxygen content of ethanol, so good combustion characteristics;
(3) car ethanol gasoline can effectively reduce vehicle exhaust emissions, can reduce hydrocarbon emissions by 16.2%, carbon monoxide emissions decreased by 30%;
(4) fuel ethanol production resources are rich, mature technology, is a renewable energy, oil is non-renewable energy;
(5) the use of ethanol gasoline vehicles, oil cleaner, less engine carbon deposition. This is especially true for some in-cylinder direct injection engines.
Automotive ethanol gasoline shortcomings
(1) low calorific value of ethanol, burning speed is slow, it will lead to reduced vehicle power, poor acceleration, car fuel consumption increased; for this point, the owner's feelings are the most intuitive;
(2) ethanol is easy to absorb GT3582 turbo water, ethanol, gasoline, water content exceeds the standard indicators, prone to liquid separation, long-term parking will occur fuel stratification phenomenon, the vehicle is not easy to start. In the case of
(3) the car's exhaust gas contains more water, a long time will corrode the exhaust pipe. Northeast of many cars exhaust pipe will be rust, damage, ethanol gasoline is definitely the first culprit.
What do you need to pay attention to using ethanol?
If your car has been using pure gasoline, and now to replace the ethanol gasoline, then you must replace the oil and fuel tank before cleaning. Especially the mileage of more than 30,000 km of the car. Otherwise, in the ethanol strong dissolution, cleaning effect, some hanging in the tank wall, tubing in the glial, the sediment will be washed down, thus blocking the filter or injector, the engine will appear jitter, speed up the weak or even flame Such as failure.