Study On Ethanol-Gasoline Blended Fuel And Application Properties

Ethanol gasoline as a motor fuel has approved to use in China, But the use of ethanol-doped petrol proportion of low alcohol, and poor stability and cold start, especially when ethanol contains small amounts of water, and almost no gasoline Complex. This paper studies 95% ethanol and 93# gasoline as basis, and study the aquifer by less than 5 percent of the industrial ethanol preparation ethanol gasoline technology.First, ethanol gasoline for the stability of the formulations on the basis of additives were used static method, centrifugal analysis and temperature stability of the large number of tests, determine the basis for selection of the additive formula. The results show that the moisture content of less than 5% of the ethanol industry adding 3% of the variability of the additive by ethanol, and the proportion could be 93# GB gasoline compound, preparation of ethanol in gasoline -20℃~ 80℃temperature changes within the scope of maintaining stability, and stability for more than six months. According to a lot of tests, in the formula of adding the appropriate modified components to solve cold start ethanol gasoline ignition problems. To solve ethanol gasoline, ethanol on rubber parts oil swelling and the corrosion of metal pieces were identified through screening experiments corresponding add components, effectively slow down the swelling of ethanol on rubber and corrosion of metal parts. Use less than 5% moisture content of 95% ethanol industry prepared containing 30% ethanol and 50% ethanol fuel E30 and E50, the Chinese People's Liberation Army Logistics Engineering College Testing Center of fuel testing, in line with state regulations automobile fuel standards.Through car engine test, and study this formula prepared by the E15,E30, E50, and so different from the proportion of ethanol gasoline and ethanol 93# GB petrol contrast application, the torque,power,fuel consumption,Exhaust temperature,emissions and other performance tests. The results show that ethanol gasoline can maintain a good momentum of the energy consumption rate than 93# GB petrol low CO emissions is obviously better than the 93# GB gasoline, and obviously lower than the 93# NOX emissions GB petrol. Road tests show that the preparation of the E30 and E50 ethanol fuel in the start, acceleration and fuel consumption with the 93# GB petrol no significant difference.