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Bio-lubricants production from fish oil residue by transesterification with trimethylolpropane
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DOI：10.1016/j.jclepro.2018.07.260.png)
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Abstract
En 中文
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.
Keywords:
Bio-lubricants
Waste fish oil
Transesterification
Trimethylolpropane
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