fossil fuel.And bioethanol is absolutely one of the rising stars among the candidates of biotechnology-based energy.Essentially speaking,the reasons why they gained the most attention summarize to the fact that they're easy to get,efficient to burn, cheap to produce,and free of pollutions. 2.What is Bioethanol Bioethanol is simply ethanol-a chemical compound with chemical formula C2HsOH-but made through biotechnology processes.It is the principle fuel used as a petrol substitute for road transportation vehicles.1 Bioethanol fuel is mainly produced by sugar fermentation process, although it can be manufactured by the chemical process of reacting ethylene with steam.[2] By blending ethanol with gasoline we can also oxygenate the fuel mixture so it burns more completely and reduces polluting emissions.Ethanol fuel blends are widely sold in the United States.The most common blend is 10%ethanol and 90%petrol (E10).Vehicle engines require no modifications to run on E10 and vehicle warranties are unaffected also.Only flexible fuel vehicles can run on up to 85%ethanol and 15%petrol blends(E85).fossil fuel. And bioethanol is absolutely one of the rising stars among the candidates of biotechnology-based energy. Essentially speaking, the reasons why they gained the most attention summarize to the fact that they’re easy to get, efficient to burn, cheap to produce, and free of pollutions. 2. What is Bioethanol Bioethanol is simply ethanol—a chemical compound with chemical formula CଶHହOH —but made through biotechnology processes. It is the principle fuel used as a petrol substitute for road transportation vehicles. [1] Bioethanol fuel is mainly produced by sugar fermentation process, although it can be manufactured by the chemical process of reacting ethylene with steam.[2] By blending ethanol with gasoline we can also oxygenate the fuel mixture so it burns more completely and reduces polluting emissions. Ethanol fuel blends are widely sold in the United States. The most common blend is 10% ethanol and 90% petrol (E10). Vehicle engines require no modifications to run on E10 and vehicle warranties are unaffected also. Only flexible fuel vehicles can run on up to 85% ethanol and 15% petrol blends (E85)