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Continuous Transesterification of Biodiesel in a Helicoidal Reactor Using Recycled Oil by Fredy Avellaneda; Joan Salvadó is a Engineering article available to read on EtoBox.

What is Continuous Transesterification of Biodiesel in a Helicoidal Reactor Using Recycled Oil about?

The main problem with biodiesel is the high cost of oils made from oleaginous crops. For this reason, various raw materials have been analysed with a view to reducing production costs and obtaining a product that can compete with the price of petrodiesel. Recycled oil is one of the most promising alternatives in the production of biodiesel because not only is the cheapest raw material but it also avoids the expense of treating the oil as a residue. Another way to reduce costs is to make the process more economical. Conventional technology uses sodium hydroxide as the basic catalyst and large-scale batch reactors, whose mechanical agitation requires high energy consumption due to residence times of at least 60 min and temperatures of 60 °C. In this paper we use a recycled pretreated oil to compare conventional transesterification with continuous transesterification in a tubular reactor. In this reactor the reactants (oil, methanol and sodium hydroxide) flow through a helicoidal tube submerged in a heating bath at 60 °C. The reactor has five outlets distributed nonuniformly to enable samples to be taken at different reaction times. This is to reduce the reaction time and avoid the ne

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Author

Fredy Avellaneda; Joan Salvadó

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0378-3820)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)