Citation
Hoong Seng Soi, . and Yeong Shoot Kian, . and Arniza Mohd Zan, . and Srihanum Adnan, . and Nik Siti Mariam Nek Mat Din, . and Rahimi M Yusop, . Synthesis of glycerol trilevulinate ester: effect of reaction parameters. pp. 624-633. ISSN 1511-2780
Abstract
Derivatisation of glycerol (Gly) with levulinic acid (LA) to produce glycerol trilevulinate (Gt-LE) was studied. The reaction parameters affecting synthesis of Gt-LE were investigated. Catalytic and non-catalytic reactions between Gly and LA were carried out. Effects of reaction time and temperature on non-catalytic reaction were observed. Conversely for catalysed reaction reaction parameters studied were type of catalyst mole ratio catalyst loading and reaction time. Result analysis indicated that for the catalyst-free reaction increment of reaction time and temperature will further reduce the acid value of reaction product. On the other hand for catalytic reaction p-TsOH accelerated the reaction much faster than montmorillonite Amberlyst-15 or Amberlyst-46. Result analysis also showed that the best mole ratio and catalyst loading to obtain high composition of Gt-LE without having to go through cumbersome purifying process was 1:6 with 8 catalyst loading. For reaction conducted with mole ratio of 1:6 (Gly:LA) the optimum reaction time and temperature was found to be 8 hr and 140�C respectively in which GC analysis showed that product contained about 84.5 of Gt-LE.
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Abstract
Derivatisation of glycerol (Gly) with levulinic acid (LA) to produce glycerol trilevulinate (Gt-LE) was studied. The reaction parameters affecting synthesis of Gt-LE were investigated. Catalytic and non-catalytic reactions between Gly and LA were carried out. Effects of reaction time and temperature on non-catalytic reaction were observed. Conversely for catalysed reaction reaction parameters studied were type of catalyst mole ratio catalyst loading and reaction time. Result analysis indicated that for the catalyst-free reaction increment of reaction time and temperature will further reduce the acid value of reaction product. On the other hand for catalytic reaction p-TsOH accelerated the reaction much faster than montmorillonite Amberlyst-15 or Amberlyst-46. Result analysis also showed that the best mole ratio and catalyst loading to obtain high composition of Gt-LE without having to go through cumbersome purifying process was 1:6 with 8 catalyst loading. For reaction conducted with mole ratio of 1:6 (Gly:LA) the optimum reaction time and temperature was found to be 8 hr and 140�C respectively in which GC analysis showed that product contained about 84.5 of Gt-LE.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Glycerol |
| AGROVOC Term: | Chemical analysis (methods) |
| AGROVOC Term: | Catalytic activity |
| AGROVOC Term: | Levulinic acid |
| AGROVOC Term: | Catalysts |
| AGROVOC Term: | Montmorillonites |
| AGROVOC Term: | Chemical reactions |
| AGROVOC Term: | Biodiesel |
| AGROVOC Term: | Byproducts |
| AGROVOC Term: | Oils industry |
| Depositing User: | Mr. AFANDI ABDUL MALEK |
| Last Modified: | 24 Apr 2025 00:54 |
| URI: | http://webagris.upm.edu.my/id/eprint/8794 |
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