Journal
KEMIJA U INDUSTRIJI-JOURNAL OF CHEMISTS AND CHEMICAL ENGINEERS
Volume 69, Issue 7-8, Pages 365-370Publisher
HRVATSKO DRUSTVO KEMJIJSKIH INZENJERA I TEHNOLOGA
DOI: 10.15255/KUI.2019.059
Keywords
Transesterification; triglycerides; metal oxides; ethanol
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Transesterification of vegetable oil with ethanol in the presence of fine metal oxide particles as catalysts has been investigated. Zinc and nickel(II) oxides were shown to have the highest catalytic activity. In their presence, the conversion of sunflower oil triglycerides, after 150 min, reached 95.3 and 94.2 %, respectively. The optimal mass fraction of zinc oxide catalyst was found to be 0.25-0.31 %. In the presence of zinc oxide, with mass fraction of water in ethanol of 5 and 10 %, the conversion of triglycerides was 98.5 and 94.8 %, respectively.
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