A Comparison of Biodiesel Purification Methods

C.J. Schabort, P.J. Van Der Walt & S. Marx
The purification of biodiesel is of cardinal importance to ensure the final product meets industry standards. This final step in the production stage contributes a large portion of the cost attributed to biodiesel production. The aim of this study was to compare four biodiesel purification methods and the energy required to provide a fuel that meets specifications. Major contaminants (water and soap) and fuel properties (oxidative stability) were investigated and compared for the four purification...