Abstract
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 language | English |
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Pages (from-to) | 644-651 |
Number of pages | 8 |
Journal | Israel Journal of Chemistry |
Volume | 60 |
Issue number | 5-6 |
DOIs | |
State | Published - 1 May 2020 |
Keywords
- Lewis catalysts
- biodiesel
- esterification
- free fatty acids
- ultrasonic activation
All Science Journal Classification (ASJC) codes
- General Chemistry