Biodiesel Production using Lewis Catalysts under Ultrasonic Activation

Mirit Kolet, Daniel Zerbib, Karen Molina, Faina Nakonechny, Marina Nisnevitch

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Biodiesel can be produced by transesterification of oil triglycerides, as well as by esterification of fatty acids using feedstock materials rich in free fatty acids)FFAs). Utilization of such feedstocks can gain substantial economical profit and solve a problem of disposal of residual raw materials. To find an effective method of biodiesel production from FFA, we developed esterification of FFAs under ultrasonic activation using Lewis acids as catalysts. Homologous catalyst BF3 and heterogeneous AlCl3 were highly effective in reactions of model FFAs methylation under ultrasonic activation, when the reaction yield reached 100 %. Ethylation at the same conditions was less successful.

Original languageEnglish
Pages (from-to)644-651
Number of pages8
JournalIsrael Journal of Chemistry
Issue number5-6
StatePublished - 1 May 2020


  • Lewis catalysts
  • biodiesel
  • esterification
  • free fatty acids
  • ultrasonic activation


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