What are the characteristics and functions of alcohol-based fuels?

Alcohol-based fuel can be made into liquid fuel, solid fuel (such as solid alcohol) and gas fuel (such as methanol to dimethyl ether). Alcohol-based fuel has obvious economic comparability-according to the unit calorific value price, methanol is the most cost-effective fuel compared with gasoline, diesel oil and liquefied gas. Alcohol-based fuel is a kind of green energy-compared with coal, coal tar, heavy oil, diesel oil and gasoline, alcohol-based fuel has the most complete combustion, the highest heat conversion efficiency, the cleanest and the most environmentally friendly. In order to promote and standardize the popularization of alcohol-based fuels, China has promulgated the national standard GB 16663- 1996 for alcohol-based liquid fuels, and the national standard GB/T 235 10-2009 for vehicle fuel methanol will also be adopted in 2009.