Biodiesel: Saiba mais
Autor: Vitor Hugo | Publicado: 2011-06-09T18:43:00-07:00

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O biodiesel é um combustível para ser utilizado nos carros ou caminhões, feito a partir de óleos vegetais ou de gordura animal. Atualmente o biodiesel vendido nos postos pelo Brasil possui 5% de biodiesel e 95% de diesel. O biodiesel só pode ser usado em motores a diesel, portanto este combustível é um substituto do diesel.Para se produzir biodiesel, o óleo retirado das plantas é misturado com álcool (ou metanol) e depois estimulado por um catalisador. O catalisador é um produto usado para provocar uma reação química entre o óleo e o álcool. Depois o óleo é separado da glicerina e filtrado.Existem muitas espécies vegetais no Brasil que podem ser usadas na produção do biodiesel, como o óleo de girassol, de amendoim, de mamona, de soja, entre outros.