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<p>The rising popularity of third-generation microalgae-derived biofuels as a viable alternative for compression ignition engines is driven by abundant oil reserves in algal biomass and rapid microalgae growth rates. This study explores the potential of <i>Scenedesmus obliquus</i> algae oil-derived fatty acid methyl ester (FAME) as a fossil fuel substitute. <i>Scenedesmus obliquus</i> methyl ester biofuel exhibits a density of 0.873 g/cm<sup>3</sup>, kinematic viscosity of 4.33 cSt, calorific value of 41.88 MJ/kg and a cetane index of 45. Analytical techniques, including Fourier Transform Infrared and UV-Visible spectrometry, identify a C=O bond at specific wavelengths. The molecular structure is determined as C<sub>19</sub>H<sub>34</sub>O<sub>2</sub>, with proportions of carbon, hydrogen and oxygen at 77.90%, 18.37% and 3.73% respectively. Saturated and unsaturated fatty acids in SOME comprise 38.73% and 61.27% respectively. These findings provide crucial knowledge for the potential applications of this biofuel.</p>

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Comprehensive analysis of methyl ester biofuel derived from Scenedesmus obliquus: a fuel characterization investigation

  • 期刊论文

  • 发表日期：

    2025年10月10日

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  • S GOWTHAM,
  • PRAKASH T

摘要

The rising popularity of third-generation microalgae-derived biofuels as a viable alternative for compression ignition engines is driven by abundant oil reserves in algal biomass and rapid microalgae growth rates. This study explores the potential of Scenedesmus obliquus algae oil-derived fatty acid methyl ester (FAME) as a fossil fuel substitute. Scenedesmus obliquus methyl ester biofuel exhibits a density of 0.873 g/cm3, kinematic viscosity of 4.33 cSt, calorific value of 41.88 MJ/kg and a cetane index of 45. Analytical techniques, including Fourier Transform Infrared and UV-Visible spectrometry, identify a C=O bond at specific wavelengths. The molecular structure is determined as C19H34O2, with proportions of carbon, hydrogen and oxygen at 77.90%, 18.37% and 3.73% respectively. Saturated and unsaturated fatty acids in SOME comprise 38.73% and 61.27% respectively. These findings provide crucial knowledge for the potential applications of this biofuel.