Oxidation Stability Improvement For Jatropha Biodiesel To Meet The International Standard For Automotive Applications

Rizqon Fajar, Cahyo Setyo Wibowo, Siti Yubaidah

Abstract


Biodiesel from Jatropha oil has several advantages compared to which from Palm oil, among others better cold flow properties (lower cloud point, pour point and CFPP). However, Jatropha biodiesel has an oxidation stability that is too low (2-3 hours) so that its application in the diesel engine is not acceptable. This paper reports the effect of addition of Palm bodiesel and commercial anti-oxidant on the oxidation stability of Jatropha biodiesel. The objective of this research is to find the formulation for Jatropha biodiesel which will meet the oxidation stability determined by World Wide Fuel Charter 2009 (WWFC) of min.10 hours. The required addition of BHT into Jatropha biodiesel is more than 10000 ppm to meet the WWFC specification. The addition of BHT will decrease to less than 10000 ppm if the Jatropha biodiesel was blended with Palm biodiesel as much as 60% v/v. Addition of antioxidant should be limited to a minimum value because there are also concerns about the negative effects of antioxidants on the engine components


Keywords


jatropha & palm biodiesel, oxidation stability, anti-oxidant

Full Text:

PDF

References


M. Oguma, S. Goto & N. Chollacoop, 2009,

"EAS-ERIA Biodiesel Standard", www.

b i o e n e r g y t r a d e . o r g / . . . / t s u k u b a 0 2

chullacoopeaseriabdfstandard2008.pdf

Biodiesel Guidelines, 2009, World Wide Fuel

Charter Committee

M. Mittelbach, S. Schober, 2003, "The Influence

of Antioxidants on the Oxidation Stability

of Biodiesel", Journal of the American Oil

Chemist's Society, Vol. 80 no. 8, pg. 817-823

Haiying Tang, Anfeng Wang, Steven O. Sally,

K.Y. Simon Ng, 2008, "The Effect of natural

and Synthetic Antioxidants on the Oxidative Stability

of Biodiesel", Journal of the American Oil

Chemist's Society, Vol. 85 no. 4, pg. 373-382

K. Wadumesthrige, Steven O. Sally, K.Y.

Simon Ng, 2009, "Effects of partial hydrogenation,

epoxydation, hydroxylation on the fuel properties

of fatty acid methyl esters", Fuel Processing

Technology, Vol, 90, pg. 1292-1299

U. Loyall, B. Zumbragel, M. Kalcher, "Determination

of oxidation stability of biodiesel (fatty

acid methyl ester, FAME)", http://

www.metrohm.com/export/Homepages/

MetrohmAG/com/downloads/ TP_Biodiesel.pdf

Renewable Energy Group, 2009, "Feedstock and

Biodiesel Characteristics Report", www.

regfuel.com

JY.Park et al., 2008, "Blending effects of

biodiesels on oxidation stability and low temperature

flow properties", Bioresource Technology,

Vol. 99, pg. 1196-1203

R. Sarin, M. Sharma, S. Sinharay, R.K.

Malhotra, 2007, "Jatropha-Palm biodiesel blends:

An optimum mix for Asia", Fuel, Vol. 86, pg. 1365-

ˇ




DOI: https://doi.org/10.29017/SCOG.34.1.794

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.