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Rapid Alcoholysis of Jatropha Curcas Oil for Biodiesel Production Using Ultrasound Irradiation

1Department of Chemical Engineering, Politeknik Negeri Samarinda, Jln. Dr. Ciptomangunkusumo, Kampus Gunung Lipan, Samarinda 75131, Indonesia

2Institute of Hydrogen Economy (IHE), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, Kuala Lumpur 54100, Malaysia

3Agency for Assessment and Application of Technology, BPPT, Kawasan Puspiptek Serpong, Tangerang 15314, Indonesia

Received: 21 Nov 2016; Revised: 8 Mar 2017; Accepted: 9 Mar 2017; Available online: 27 Oct 2017; Published: 1 Dec 2017.
Editor(s): Istadi Istadi, Yuly Kusumawati
Open Access Copyright (c) 2017 by Authors, Published by BCREC Group under http://creativecommons.org/licenses/by-sa/4.0.

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Abstract

The biodiesel synthesis through alcoholysis process of triglyceride from Jatropha curcas using different type of alcohol, such as: methanol, ethanol, isopropyl alcohol and tert-butanol, was conducted in the presence of potassium hydroxide (KOH) as catalyst under 35 kHz frequency ultrasound irradiation. The optimum conditions, such as: alcohol to jatropha oil molar ratio, concentration of catalyst, reaction temperature, and reaction time, were found  to be 7:1 of alcohol to jatropha oil molar ratio, 0.5 % of KOH, temperature of reaction at 35 0C, within the reaction times of 15 minutes. The results obtained for the different types of alcohol were 62.77 %, 57.93 %, 51.64 %, and 46.77 % for methanol, ethanol, isopropyl alcohol, and tert-butanol, respectively. 

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Keywords: Alcoholysis; Jatropha Oil; Biodiesel; Ultrasound

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