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Tri‐component coupling transesterification for efficient no‐glycerol biodiesel production using methyl acetate as methyl reagent
Author(s) -
Tang Ying,
Liu Huan,
Li Zhaoyi,
Meng Mei,
Zhang Jie
Publication year - 2020
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.6312
Subject(s) - transesterification , methyl acetate , methanol , biodiesel production , biodiesel , chemistry , fatty acid methyl ester , glycerol , yield (engineering) , organic chemistry , catalysis , solvent , nuclear chemistry , materials science , metallurgy
BACKGROUND Conventional transesterification of vegetable oil with methanol for biodiesel production leads to the separation of glycerol and relatively low reaction efficiency. Methyl acetate is a more common solvent being less toxic and less soluble in water. In the presence of bases the transesterification of methyl acetate with glycerol can easily proceed at refluxing temperature. RESULTS A yield of fatty acid methyl ester (FAME) of 98.0% can be obtained with oil/methyl acetate/methanol molar ratio of 1:1:8 and 10% dosage of KCl/CaO at 65 °C after reaction for 1 h. Furthermore, results of water resistance experiments indicated that trace water gave a promoting effect on FAME yield. Recycling experiments were conducted for four cycles and a greater than 90% yield of FAME indicated the high stability of KCl/CaO. CONCLUSIONS Efficient biodiesel production with no glycerol byproduct has been developed using a tri‐component (canola oil, methyl acetate and methanol) coupling chemical reaction with calcium oxide‐supported chloride as catalyst. Various characterization techniques revealed that the unique catalytic activity of KCl/CaO was related to its high degree of crystallinity, relatively high surface basicity and large pore size. © 2019 Society of Chemical Industry