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Environmentally Friendly Determination of Quality Parameters of Biodiesel/Diesel Blends Using Fourier Transform Infrared Spectra

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Journal of the American Oil Chemists' Society

Abstract

Multivariate calibration models based on data from mid-infrared spectroscopy of biodiesel/diesel blends were obtained. The blends were prepared from diesel oil and esters of soybean oil, waste cooking oil, and hydrogenated vegetable oil in proportions ranging from 0 to 100 % biodiesel. The results showed that the multivariate regression models with interval partial least squares (iPLS), backward interval partial least squares (biPLS), and synergy interval partial least squares (siPLS) were able to determine the fractions of the infrared spectrum that contain the relevant information for estimating the values of physicochemical properties, flash point, specific gravity, and cetane number, which are used in quality control of the blends. In the best models, the values of determination coefficients were greater than 0.9500, proving their efficiency as an alternative to traditional analytical methods.

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Acknowledgments

The authors are thankful to CNPq for financial support, INCT-Bioanalítica and REFAP for the diesel oil samples, and CECOM/UFRGS for the analysis and infrastructure.

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Correspondence to Carla Felippi Chiella Ruschel.

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Ruschel, C.F.C., Huang, C.T., Samios, D. et al. Environmentally Friendly Determination of Quality Parameters of Biodiesel/Diesel Blends Using Fourier Transform Infrared Spectra. J Am Oil Chem Soc 92, 309–315 (2015). https://doi.org/10.1007/s11746-015-2601-z

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  • DOI: https://doi.org/10.1007/s11746-015-2601-z

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