Publication: Optimization of biodiesel production using nanomagnetic CaO-based catalysts with subcritical methanol transesterification of rubber seed oil
Issued Date
2019-01-12
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19961073
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2-s2.0-85060513090
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Mahidol University
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SCOPUS
Bibliographic Citation
Energies. Vol.12, No.2 (2019)
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Veronica Winoto, Nuttawan Yoswathana Optimization of biodiesel production using nanomagnetic CaO-based catalysts with subcritical methanol transesterification of rubber seed oil. Energies. Vol.12, No.2 (2019). doi:10.3390/en12020230 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/50813
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Title
Optimization of biodiesel production using nanomagnetic CaO-based catalysts with subcritical methanol transesterification of rubber seed oil
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Abstract
© 2019 by the authors. The molar ratio of methanol to rubber seed oil (RSO), catalyst loading, and the reaction time of RSO biodiesel production were optimized in this work. The response surface methodology, using the Box–Behnken design, was analyzed to determine the optimum fatty acid methyl ester (FAME) yield. The performance of various nanomagnetic CaO-based catalysts—KF/CaO-Fe 3 O 4 , KF/CaO-Fe 3 O 4 -Li (Li additives), and KF/CaO-Fe 3 O 4 -Al (Al additives)—were compared. Rubber seed biodiesel was produced via the transesterification process under subcritical methanol conditions with nanomagnetic catalysts. The experimental results indicated that the KF/CaO-Fe 3 O 4 -Al nanomagnetic catalyst produced the highest FAME yield of 86.79%. The optimum conditions were a 28:1 molar ratio of methanol to RSO, 1.5 wt % catalyst, and 49 min reaction time. Al additives of KF/CaO-Fe 3 O 4 nanomagnetic catalyst enhanced FAME yield without Al up to 18.17% and shortened the reaction time by up to 11 min.