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has been cited by the following article:

• TITLE: Methanolysis of Mixed Crop Oils (Hevea brasiliensis and Jatropha curcas L.) into Biodiesel: Kinetics Study

  AUTHORS: Azhari M. Syam, Zulfikar  , Suryati  , Leni Maulinda, Fikri Haspita

  KEYWORDS: Biodiesel, Methanolysis, Hevea brasiliensis, Jatropha curcass L.

  JOURNAL NAME: Smart Grid and Renewable Energy, Vol.8 No.12, December 28, 2017

  ABSTRACT: In this study, the methanolysis of mixed crop oils (Hevea brasiliensis and Jatropha curcas L.) was investigated. Due to the oils contain high impurities, a particular pre-treatment of which was carried out. For alkali-catalyzed methanolysis, few parameters (such as: molar ratio, catalyst percentage, and reaction time) were studied. The results showed that the methanolysis optimum conditions were 5.5 of molar ratio, 0.9% w/w of catalyst, and 60 minutes of reaction time with the highest yield of 98.9%. The kinetics study indicated that first order reaction mechanism with reaction rate constant and activation energy were 1.5 × 10-2 minute-1 and 23.93 KJ?mol-1 respectively. As fuel, the physicochemical properties of biodiesel met the standard values required by ASTM D6751.