What it is Biodiesel?

Biodiesel is a done vegetal oil fuel a animal fat. This oil is mixed alcohol (or methanol) and later stimulated by a catalyser. The catalyser is a used product to provoke a chemical reaction between the oil and the alcohol. Later the oil he is separate of the glycerin and filtered. The process generates two products, esters and glycerin. Many vegetal species in Brazil exist that can be used in the production of biodiesel, as the oil of sunflower, the peanut, mamona, the soy, mamona, babaçu and excessively oleaginosas, or of animal fats, used in engines diesel, any concentration of mixture with diesel. The biocombustível derived from renewable biomass, for the use in engines the internal combustion with ignition, for compression or, as regulation, for generation of another type of energy, that can substitute partial or total combustible of fossil origin. The compression (diesel) without necessity of modification in the same can be used in an ignition engine. Biodiesel is the name of an alternative fuel of clean burning, produced of domestic resources, renewed. He does not contain oil, but it can be added forming a mixture. The Biodiesel is simple of being used, biodegradável, not toxic and essentially free of sulphurated and aromatical composites. It can be used pure or in mixture with the oil diesel in any ratio. Diesel of low sulphur text has application similar when in mixture to the oil, because it grants to this, better characteristics of lubricidade. World-wide was transferred to adopt it a nomenclature sufficiently appropriate to identify the concentration of the Biodiesel in the mixture. It is Biodiesel BXX, where XX are the percentage in volume of the Biodiesel to the mixture. For example, the B2, B5, B20 and B100 are combustible with a concentration of 2%, 5%, 20% and 100% of Biodiesel, respectively.
The experience of use of biodiesel in the fuel market if has given in four levels of concentration:
• Pure (B100)
• Mixtures (B20 - B30)
• Additive (B5)
• Additive of lubricidade (B2) The mixtures in volumetric ratios between 5% and 20% are most usual, being that for the B5 mixture, no adaptation of the engines is not necessary. Biodiesel is perfectly miscible and quimicamente similar physicist to the mineral oil diesel, being able to be used in engines of the cycle diesel without the necessity of significant adaptations. By being biodegradável, aromatical not-toxic and practically free of sulphur and, an ecological fuel is considered. As one is about a clean energy, non-polluting, its use in a conventional engine diesel results, when comparative with the burning of diesel mineral, in a substantial reduction of monoxide of carbon and hydro-carbons not burnt.







Vocabulário

Catalyser = Catalisador
Esters = Ésteres
Sunflower = Girassol
Soy = Soja
Renewable = Renovável



Perguntas
1- Analise o texto e diga como os combustíveis fósseis podem ajudar na diminuição do efeito estufa.
2- A partir de que produtos naturais consegue-se extrair combustível renovável?
3- Descreva o processo para a obtenção do biodiesel
4-O biodiesel pode ser usado misturado a outros componentes, como ele pode ser classificado quantos a essas misturas?
5- O biodiesel pode ser considerado um combustível ecológico? Por que?


Componentes
Gabriela nº 13
Karoline nº 22
Lucas nº 26
Maristella nº 28
Renan nº 38