Publikationsdatum:
2011-02-19
Beschreibung:
Jatropha oil has good potential as the renewable energy as well as lubricant feedstock. The synthesis of jatropha biolubricant was performed by transesterification of jatropha methyl ester (JME) with trimethyl-ol-propane (TMP) with sodium methoxide (NaOCH3) catalyst. The effects of temperature on the synthesis were studied at a range between 120°C and 200°C with pressure kept at 10mbar. The conversion of JME to jatropha biolubricant was found to be the highest (47%) at 200°C. However, it was suggested that the optimum temperature of the reaction is at 150°C due to insignificant improvement in biolubricant production. To maintain forward reaction, the excess amount of JME was maintained at 3.9:1 ratios to TMP. Kinetic study was done and compared. The synthesis was found to follow a second order reaction with overall rate constant of 1.49 × 10–1 (%wt/wt.min.°C)−1. The estimated activation energy was 3.94 kJ/mol. Pour point for jatropha biolubricant was at −3°C and Viscosity Index ...
Print ISSN:
1757-8981
Digitale ISSN:
1757-899X
Thema:
Maschinenbau
Permalink