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Analysis of Oxidative Deterioration of Biodiesel Fuel

Journal Article
2008-01-2502
ISSN: 1946-3952, e-ISSN: 1946-3960
Published October 06, 2008 by SAE International in United States
Analysis of Oxidative Deterioration of Biodiesel Fuel
Sector:
Citation: Ogawa, T., Kajiya, S., Kosaka, S., Tajima, I. et al., "Analysis of Oxidative Deterioration of Biodiesel Fuel," SAE Int. J. Fuels Lubr. 1(1):1571-1583, 2009, https://doi.org/10.4271/2008-01-2502.
Language: English

Abstract:

Methyl esters of saturated/unsaturated higher aliphatic acids (FAMEs) and a FAME of waste cooking oil (WCOME) were heated at 120°C in an air gas flow. The samples were analyzed before and after heating, using six different methods including electrospray ionization mass spectrometry. As a result, the samples after heating were found to contain low molecular weight aliphatic compounds and oligomers of the FAME. Based on the chemical structure of these oxidation products, reaction schemes were proposed for the deterioration of FAMEs. In addition, two unsaturated FAMEs containing 2,6-di-t-butyl-p-cresol (BHT) were similarly heated and analyzed to examine the effect of BHT on the oxidation of these FAME.