期刊
RENEWABLE ENERGY
卷 175, 期 -, 页码 391-404出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2021.04.135
关键词
Biodiesel; Halloysite; Sodium aluminate; Ultrasonic impregnation; Transesterification; Artificial neural network
资金
- National Natural Science Foundation of China [51876106]
This study reported the one-pot synthesis of a promising, cheap, and green heterogeneous nanocatalyst for biodiesel production, which showed excellent catalytic performance with a biodiesel yield of 99.15%. By using a neural network, the optimal reaction parameters were predicted accurately, demonstrating the high efficiency and accuracy of the model.
This work reported the one-pot synthesis of the promising, cheap and green heterogeneous nanocatalyst for biodiesel production. The halloysite nanotube (HNT) was impregnated with 40 wt% NaAlO2 (SA) and the assistance of ultrasonic helped to achieve a better and more stable modification. The resulting 0.4SA/HNTs-UI catalyst was applied in catalyzing the transesterification of palm oil with methanol, using a GA_BP neural network to train and predict the optimal values of reaction parameters. The test results proved the prediction accuracy of the model with R-2 = 0.989. The catalyst possessed excellent performance, and the maximum biodiesel yield of 99.15% was achieved with the catalyst loaded amount of 8.82 wt%, methanol to oil molar ratio of 16.79 and transesterification temperature of 65.12 degrees C. Besides, the physicochemical properties of the purified transesterification product were in accordance with the ASTM D 6751 standard of biodiesel. (C) 2021 Elsevier Ltd. All rights reserved.
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