Tetramethylguanidine as an efficient catalyst for transesterification of waste frying oils |
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| Authors: | Georgios Karavalakis Georgios AnastopoulosStamos Stournas |
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| Affiliation: | Laboratory of Fuels Technology and Lubricants, School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str. Zografou Campus, 157 80 Athens, Greece |
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| Abstract: | New catalysts and environmentally benign processes may lead to methyl ester production with improved properties at competitive costs. In this study, transesterification of waste frying oil to biodiesel using tetramethylguanidine as a strong base catalyst was conducted. The influence of catalyst concentration and of certain physicochemical properties of waste frying oil was investigated. Experiments were also performed on a semi-refined cottonseed oil for comparison purposes. Experimental results showed that methyl ester conversion was dependent on the type of oil, catalyst concentration and reaction time. |
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| Keywords: | Biodiesel Transesterification Amine catalyst Tetramethylguanidine Used frying oils Cottonseed oil |
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