Essential Sites
Fuel and Biofuel
en.wikipedia.org/wiki/Biodiesel - Biodiesel refers to a non-petroleum-based diesel fuel consisting of short chain alkyl esters, made by transesterification of vegetable oil, which can be used (alone, or blended with conventional petrodiesel) in unmodified diesel-engine vehicles. Biodiesel is distinguished from the straight vegetable oil (SVO) used (alone, or blended) as fuels in some converted diesel vehicles. "Biodiesel" is standardized as mono-alkyl ester and other kinds of diesel-grade fuels of biological origin are not included.
pt.wikipedia.org/wiki/Bioetanol - Bioethanol is the genus that includes all processes of production of ethanol whose raw material used in the biomass such as sugarcane, maize and cellulose. It is a kind of biofuel. In Brazil it is produced on a large scale using as raw material for sugar-cane. There is also the production in other countries like the U.S. and France, using the corn and beet, respectively. Meanwhile the Brazilian process is the most advanced, because, for each unit of energy used in the process, are generated about 8 units of energy in the form of ethanol in the U.S. while the ratio is about 1 to 1.3 today. The French process reaches the mark of 1 to 1.5. Also, in the Brazilian process begins to become increasingly common use of the cane bagasse, over the process, for the generation of electricity.
pt.wikipedia.org/wiki/Etanol - The ethanol (CH3 CH2OH), also called ethyl alcohol or simply alcohol, is a substance obtained from the fermentation of sugars, found in drinks such as beer, wine and spirits, and in the perfumery industry. The largest single use of ethanol is as a motor fuel and fuel additive. The largest national fuel ethanol industries exist in Brazil (gasoline sold in Brazil contains at least 25% ethanol and anhydrous ethanol is also used as fuel in more than 90% of new cars sold in the country). The Brazilian production of ethanol is praised for the high carbon sequestration capabilities of the sugar cane plantations, thus making it a real option to combat climate change en.wikipedia.org/wiki/Ethanol_fuel.
