Optimization Process for Esterification of Rubber Seed Oil (RSO) with Trimethylolpropane (TMP)

  • Jumat Salimon
  • Ainaatul Asmaa’ Ishak
Keywords: esterification, rubber seed oil, trimethylolpropane, biolubrican

Abstract

Trimethylolpropane (TMP) ester has the potential to serve as a basic material in the biolubricant production due to its biodegradability, environmental friendly and good thermal properties. Thus, an investigation on the optimization of esterification of TMP with rubber seed oil fatty acid was carried out with sulphuric acid acting as the catalyst. In seeking optimised reaction, various temperature levels, durations and catalyst concentrations were applied. The results show that RSO has successfully being converted to TMP ester with 78% of TE at the temperature of 150oC using 2% (w/w) of sulphuric acid at 5 hours reaction time. Purification of TMP ester resulted in percentage yield of 66.8% of TMP ester with a mixture of DE and TE at 0.9% and 99.1%, respectively. TMP ester was analysed using high temperature gas chromatography (GC-FID) to determine the percentage composition of ester formed and fourier transform infrared spectroscopy (FTIR) to confirm the structure.

Author Biographies

Jumat Salimon
School of Chemical Sciences and Food Technology,
Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM
Bangi, Selangor Darul Ehsan, Malaysia.
Ainaatul Asmaa’ Ishak
School of Chemical Sciences and Food Technology,
Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM
How to Cite
Salimon, J., & Ishak, A. A. (1). Optimization Process for Esterification of Rubber Seed Oil (RSO) with Trimethylolpropane (TMP). Journal of Science and Technology, 4(1). Retrieved from https://publisher.uthm.edu.my/ojs/index.php/JST/article/view/470
Section
Articles