A Conparative Study of Biodiesel Purification with Magnesium Silicate and Water

A Conparative Study of Biodiesel Purification with Magnesium Silicate and Water

E.A. Duran
R. Tinoco
A. Pérez
R. Berrones
D. Eapen
P.J. Sebastián*

Centro de Investigación en Materiales Avanzados, CIMAV, Chihuahua, Chihuahua, Mexico

Instituto de Biotecnología- UNAM, 62210, Cuernavaca, Morelos, Mexico

Instituto de Energías Renovables-UNAM, 62580, Temixco, Morelos, Mexico

Corresponding Author Email: 
June 03, 2013
July 26, 2013
April 01, 2014
| Citation

It is not justifiable to use excess of water to purify biodiesel only because it is the "most economical" method. Actually it is one of the problems in the biodiesel production industry an adequate purification method; the most commonly used one is the water washing. Currently, there is considerable interest in the biodiesel purification with other solid materials such as synthetic magnesium silicate, which is an effective absorbent to remove impurities. The two methods discussed here have been tested in similar conditions of temperature, time and concentration of reactants. It was found that it is very important to remove the remaining methanol to avoid saturation of the absorbent. The analysis concluded that residues of glycerol and soap content in the two processes are similar and efficient enough and did not find many differences. The purity requirements and analysis of biodiesel were based on the American standard ASTM D6751.


Biodiesel, magnesium silicate, water, transesterification

1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions

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