Environmentally Friendly Determination of Quality Parameters of Biodiesel/Diesel Blends Using Fourier Transform Infrared Spectra |
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| Authors: | Carla Felippi Chiella Ruschel Chun Te Huang Dimitrios Samios Marco Flôres Ferrão Carlos Itsuo Yamamoto Rubia Carla Barato Plocharski |
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| Affiliation: | 1. 0555133086297;2. , Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil;3. Instituto Nacional de Ciência e Tecnologia em Bioanalítica (INCT–Bioanalítica), Campinas, SP, Brazil;4. , Laboratório de Análises de Combustíveis Automotivos (LACAUT), Centro Politécnico, Universidade Federal do Paraná, Curitiba, PR, Brazil |
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| 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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| Keywords: | Biodiesel Biobased products Infrared spectroscopy Multivariate regression Chemometrics |
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