期刊
JOURNAL OF CLEANER PRODUCTION
卷 202, 期 -, 页码 81-87出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2018.07.260
关键词
Bio-lubricants; Waste fish oil; Transesterification; Trimethylolpropane
资金
- Spanish Ministerio de Economia, Industria y Competitividad [CTQ-2014-52367-R]
- Gobierno de Aragon [E37_17R]
- University of Zaragoza [OTRI 2015/0231]
The fatty acid ethyl esters mixture, a fish oil residue obtained after the extraction of omega-3 polyunsaturated fatty esters, has been converted into mixtures of mono-, di-, and triesters of trimethylolpropane by transesterification at 100-140 degrees C under vacuum with sodium ethoxide as catalyst. This method has shown to be more efficient than the enzymatic transesterification using commercially available lipases. The crude reaction mixture (84% conversion of ethyl esters), enriched in trimethylolpropane triesters (96% selectivity) was characterized and its properties compared with those of the starting ethyl esters mixture and the trimethylolpropane esters obtained from vegetal sources. (C) 2018 Elsevier Ltd. All rights reserved.
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