Effect of pre-heating time and reaction time on biodiesel yield

Authors

  • Nguyen Tran Phuong Lan Can Tho University, Vietnam
  • Wu Wei-cheng National Taiwan University of Science and Technology (NTUST), Vietnam
  • Ju Yi-Hsu National Taiwan University of Science and Technology (NTUST), Vietnam
  • Luong Huynh Vu Thanh Can Tho University, Vietnam
  • Huynh Quoc Khanh Can Tho University, Vietnam
  • Le Phan Hung Can Tho University, Vietnam

Corressponding author's email:

tnplan@ctu.edu.vn

Keywords:

biodiesel, transesterification, calcium oxide, soybean oil, calcium methoxide

Abstract

Worldwide petroleum reserves are decreasing rapidly; therefore, looking for sustainable and renewable energy is currently one of the targets of scientists. Biodiesel which can satisfy these requirements is synthesized by the transesterification of plant/animal oil with alcohols, typically methanol, catalyzed by acid or base. Calcium oxide (CaO) derived from the eggshell shell can be used as a catalyst in the transesterification of oil with methanol because of its low solubility in methanol, high alkalinity and reusability which conform to environmentally-friendly process. In this research, induction period, rapid reaction period and equilibrium period were observed in the rate-time curve when CaO was used as a catalyst for the transesterification of soybean oil with methanol. CaO was preheated in methanol for 15 minutes before soybean oil was added and reaction started. It was found that pre-heating of CaO could significantly shorten the reaction time and resulted in 92.53% of the yield of fatty acid methyl esters. Moreover, this study contributes new information when CaO is used as the catalyst for biodiesel production.

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Published

29-04-2019

How to Cite

[1]
Nguyen Tran Phuong Lan, Wu Wei-cheng, Ju Yi-Hsu, Luong Huynh Vu Thanh, Huynh Quoc Khanh, and Le Phan Hung, “Effect of pre-heating time and reaction time on biodiesel yield”, JTE, vol. 14, no. 2, pp. 41–47, Apr. 2019.