Production

Production Process

TRYGLYCERIDE + METHYL ESTER METHANOL + DIGLYCERIDE + METHYL ESTER METHANOL + MONOGLYCERIDE + METHYL ESTER METHANOL + GLYCEROL

In addition to the main reaction, there is a series of other processes which are also important:

  1. Oil pre-treatment: It is performed if necessary, in order to remove the suspension solids through decantation and centrifugation.

  2. Oil drying: It is equally necessary to remove the humidity which might be found in oil to prevent later problems with biodiesel quality.

  3. Biodiesel washing and drying: It is necessary to wash biodiesel in order to remove excess methanol and traces of catalyst. Removing traces of water requires drying biodiesel.

  4. Treatment of crude glycerin: The resulting glycerol is a mixture of crude glycerin with compounds which have not reacted, catalyst traces, methanol and biodiesel. For this reason, it is necessary to perform this operation both to increase the value of glycerin and to improve the use of methanol.


From a technical point of view, the beginning of this process requires the use of specific raw materials, the most important of which are:

Available vegetable oils: soybean, sunflower, rapeseed, used vegetable oil.

Soybean oil: it has a lower market price than sunflower oil.

Rapeseed oil: it yields more crops per sowing surface.

Used vegetable oil: It has a growing presence in the market both at quantity and quality level.

Animal fat: it has a limited offer, though not negligible.

Alcohols: Methanol (petroleum-derived).

Given that the resulting biodiesel will be in conformity with IRAM 6515, EN 14214 standards and with Act 26093 DEC 828/10, the conditions under which oil should enter the neutralization process must be guaranteed.

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