In-situ production of fatty acid methyl esters from swine fat via thermally induced pseudo-catalytic transesterification on silica was investigated in this study. Instead of methanol, dimethyl carbonate (DMC) was used as acyl acceptor to achieve environmental benefits and economic viability. Thermo-gravimetric analysis of swine fat reveals that swine fat contains 19.57 wt.% of water and impurities. Moreover, the fatty acid profiles obtained under various conditions (extracted swine oil + methanol + NaOH, extracted swine oil + DMC + pseudo-catalytic, and swine fat + DMC + pseudo-catalytic) were compared. These profiles were identical, showing that the introduced in-situ transesterification is technically feasible. This also suggests that in-situ pseudo-catalytic transesterification has a high tolerance against impurities. This study also shows that FAME yield via in-situ pseudo-catalytic transesterification of swine fat reached up to 97.2% at 380 °C. Therefore, in-situ pseudo-catalytic transesterification can be applicable to biodiesel production of other oil-bearing biomass feedstocks. Copyright © 2016 Elsevier Ltd.
CitationLee, J., Tsang, Y. F., Jung, J.-M., Oh, J.-I., Kim, H.-W., & Kwon, E. E. (2016). In-situ pyrogenic production of biodiesel from swine fat. Bioresource Technology, 220, 442-447.
- Swine fat
- In-situ transesterification
- Dimethyl carbonate
- Porous material