Enzymatic Synthesis of Trimethylolpropane-Bases Biolubricants from Waste Edible Oil Biodiesel Using Different Types of Biocatalysis

Document Type : Research Article


Department of Chemical Engineering, Kocaeli University, Kocaeli, TURKEY


The synthesis of environmentally friendly biodegradable lubricants has been the focus of the attention of researchers in recent years. As a result of the research, it has been determined that petroleum-based oils can compete with their physical properties. In this study, we examined the synthesis of biolubricant such as trimethylolpropane (TMP) ester from fatty acids methyl esters (FAME) of waste edible oil (WEO) by immobilized lipase Lipozyme TL IM and Novozyme 435. The effects of reaction parameters were investigated. Experimental results, it's indicated that the conversion of FAME to biolubricant was obtained at 83%, and 99% with high diester (86%) and triester (89%) content in the presence of Lipozyme TL IM and Novozyme 435 respectively. As a result of the experimental studies the physical properties of trimethylolpropane triester obtained by Novozyme 435 catalysis showed a high flash point (229 ºC), pour point (-18 ºC), high viscosity index (170) with physical properties that met the requirements between ISO VG32-37 standards. This study showed that lubricant derived from WEO FAME’s has great potential to be used as a base stock regarding favorable biodegradability and physical performance.


Main Subjects

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