Biodiesel is a regenerative and therefore environmentally friendly energy source.

Specifically, these are fatty acid methyl esters made from vegetable oils (FAME for short: fatty acid methylene ester).

FAME reduces particles by 40 percent.

The use of pure biodiesel and biodiesel in a mixture with fossil diesel reduces the emission of harmful particles. This has been shown by various studies and scientific research series from Germany, Austria, France, Sweden, Italy and the USA.

For the production, about 10% methanol and various catalysts are added to the vegetable oil. At normal pressure and temperatures around 60 ° C, the ester bonds of the triglycerides of the vegetable oil are separated and the fatty acids are then esterified with the methanol. The resulting glycerin must then be separated from the biodiesel.

As a result of this transesterification, the end product has a significantly lower viscosity than the vegetable oil and it can be used as a replacement for mineral diesel fuel.

Depending on the type of vegetable oil, a distinction is made:

RME (Rapsölmethylester)
SME (soybean oil methyl ester) or sunflower methyl ester)
AME is used for waste fat methyl esters, which can also be biodiesel.

Biodiesel should also meet a quality standard that has been agreed between the biodiesel and vehicle manufacturers. The result is the E DIN 51606 standard, which is further developed into DIN EN 14214 as part of a European standardization process. On the basis of the E DIN 51606 standard, vehicle manufacturers have released their models and engines for biodiesel operation. Biodiesel is therefore subject to constant quality monitoring. This demanding task was taken over in 1999 by the Quality Management Biodiesel Association, founded on the initiative of the Union for the Promotion of Oil and Protein Plants (UFOP) and biodiesel manufacturers. The aim is to guarantee a standardized quality of the alternative fuel throughout Germany.

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