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A Conparative Study of Biodiesel Purification with Magnesium Silicate and Water

Pages: 105-111

 

E.A. Duran1,3, R. Tinoco2, A. Pérez1, R. Berrones1, D. Eapen2 and P.J. Sebastián3,*

 

1Centro de Investigación en Materiales Avanzados, CIMAV, Chihuahua, Chihuahua, Mexico 2Instituto de Biotecnología- UNAM, 62210, Cuernavaca, Morelos, Mexico 3Instituto de Energías Renovables-UNAM, 62580, Temixco, Morelos, Mexico

 

Received: June 03, 2013, Accepted: July 26, 2013, Available online: April 01, 2014

 


Abstract: 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.

 

Keywords: Biodiesel, magnesium silicate, water, transesterification


 

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Volume 17, Number 2