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Biodiesel Conversion via Thermal Assisted in-Situ Transesterification of Bovine Fat Using Dimethyl Carbonate as an Acyl Acceptor

Title
Biodiesel Conversion via Thermal Assisted in-Situ Transesterification of Bovine Fat Using Dimethyl Carbonate as an Acyl Acceptor
Author
김기현
Keywords
Bovine fat; Dimethyl carbonate; Fatty acid methyl esters; In-situ transesterification; Silica; Biodiesel
Issue Date
2016-10
Publisher
AMER CHEMICAL SOC
Citation
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 4, NO 10, Page. 5600-5605
Abstract
This study experimentally evidenced that bovine fat could be directly converted into fatty acid methyl esters (FAMEs) without lipid extraction step via thermally assisted in-situ transesterification on a porous material such as SiO2 since providing thermal energy from an external heating source drove pseudocatalytic mechanisms caused by mobility difference between lipid in bovine fat and acyl acceptor. In particular, this study employed dimethyl carbonate (DMC) as an acyl acceptor due to its nontoxicity and economic viability. In order to validate thermal assisted in-situ transesterification, thermal degradation of bovine fat was characterized, which revealed that thermal behavior of lipid in bovine fat was nearly identical to refined lipid. The results also evidenced that bovine fat contains 12.51 wt % impurities. Fatty acid profiles were identical under different transesterification conditions, which provide evidence that the thermal assisted in-situ transesterification should be technically feasible. In order to find an optimal reaction condition, in-situ transesterification of bovine fat was tested between 340 and 390 degrees C; the maximum conversion of bovine fat was achieved at 380 degrees C. This study reported optimal conditions for thermal assisted in-situ transesterification of bovine fat, and 96.1% FAME yield from bovine fat was achieved at 380 degrees C.
URI
https://pubs.acs.org/doi/10.1021/acssuschemeng.6b01456https://repository.hanyang.ac.kr/handle/20.500.11754/100660
ISSN
2168-0485
DOI
10.1021/acssuschemeng.6b01456
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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