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Transesterification reaction for biodiesel production from soybean oil using Ni 0. 5 Zn 0 . 5 Fe 2 O 4 nanomagnetic catalyst: Kinetic study
Author(s) -
Mapossa António B.,
Dantas Joelda,
Costa Ana C. F.M.
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.5403
Subject(s) - transesterification , biodiesel , catalysis , thermogravimetric analysis , methanol , soybean oil , biodiesel production , fatty acid methyl ester , chemistry , nuclear chemistry , arrhenius equation , yield (engineering) , activation energy , materials science , organic chemistry , food science , metallurgy
Summary Biodiesel was successfully produced by transesterification process of soybean oil and methanol using Ni 0.5 Zn 0.5 Fe 2 O 4 nanomagnetic catalyst. The Ni 0.5 Zn 0.5 Fe 2 O 4 catalyst was synthesized by the combustion method and its properties were investigated using X‐ray diffraction, N 2 physisorption at 77 K, Fourier transform infrared analysis, thermogravimetric analysis, scanning electron microscopy, and a transmission electron microscopy. The performance of catalyst was investigated during transesterification reaction for fatty acid methyl esters (FAMEs) production. FAMEs were studied by gas chromatography technique. The effect of reaction conditions such as molar ratio of methanol/soybean oil, catalyst amount, reaction temperature, and reaction time on FAMEs yield was also evaluated. The biodiesel yield of 92.1% was obtained under the following reaction conditions: 9:1 of methanol/soybean oil molar ratio and, 2% of catalyst loading at 180°C in 3 hours. Furthermore, the energy of activation ( E a ) was 67.4 kJ.mo1 −1 and the pre‐exponential factor ( k o ) was 8.35 × 10 4 L mol −1 min −1 determined using Arrhenius equation.