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Fast characterization of biodiesel via a combination of ATR-FTIR and machine learning models by Chao Chen; Rui Liang; Shaige Xia; Donghao Hou; Boré Abdoulaye; Junyu Tao; Beibei Yan; Zhanjun Cheng; Guanyi Chen is a Engineering article available to read on EtoBox.

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This study proposed a fast characterization method for biodiesel based on attenuated total reflection flourier-transform infrared spectroscopy and machine learning models. The concerning characteristics of biodiesel include unsaturated group content, O content, and contents of four representative esters. A total of 71 biodiesel samples were produced from a lab-scale reactor. Their spectral data and characteristics were collected and used as training data for machine learning models. The established model framework consisted of two data compression sections, a classification section, and a regression section, all of which use machine learning models, such as principal component analysis, support vector machine, artificial neural network, and random forest. The accuracy, correlation, and sensitivity of the proposed method were evaluated and optimized. Furthermore, the interpretation of the models was discussed. The results showed that the principal component analysis model was a satisfactory preprocessing procedure for the downstream classification and regression models. Under the optimal model parameters, the integrated framework could reach an average accuracy rate of 93.18% and a

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Author

Chao Chen; Rui Liang; Shaige Xia; Donghao Hou; Boré Abdoulaye; Junyu Tao; Beibei Yan; Zhanjun Cheng; Guanyi Chen

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)