Res. Agr. Eng., 2013, 59(3):83-90 | DOI: 10.17221/27/2010-RAE

Chemical, stoichiometric and thermal analysis of fatty acid methyl esters from processed animal fatOriginal Paper

J. Mala»ák1, L. ©karková1, A. Proąková2
1 Department of Technological Equipment of Buildings, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic
2 Food Research Institute Prague, Prague, Czech Republic

The paper focuses on liquid biofuel raised by transesterification of processed animal fat from rendering plant production suitable for energy use. The objective of the paper is to carry out an element analysis and stoichiometric analysis of selected samples of fuel from rendering plant production and to compare them with classic elements. The results of the analyses prove higher values of nitrogen concentration in the samples from rendering plant fat. In case of the samples of fatty acid methyl esters (FAME) from it a reduction of nitrogen was proved even if the values are still higher than at fatty acid methyl esters rape oil. Concerning the concentration of sulphur and chlorine in the samples of both rendering plant fat and FAME from it their concentration concerning the limiting values do not cause any problem. The net calorific value of the analysed samples is slightly lower. The net calorific value of the samples is particularly reduced by the higher amount of ash and by the oxygen concentration in the sample itself. Higher amount of ash in the fuel increases the amount of solid emissions.

Keywords: biofuel; rendering plant fat; transesterification; net calorific value; emissions

Published: September 30, 2013  Show citation

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Mala»ák J, ©karková L, Proąková A. Chemical, stoichiometric and thermal analysis of fatty acid methyl esters from processed animal fat. Res. Agr. Eng. 2013;59(3):83-90. doi: 10.17221/27/2010-RAE.
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