Biodiesel production via esterification of oleic acid catalyzed by MnO2@Mn(btc) as a novel and heterogeneous catalyst

The main objective of this study is to develop efficient and environmentally benign heterogeneous catalysts for biodiesel production. For this purpose, a heterogeneous MnO2@Mn(btc) catalyst was prepared by the solvothermal method, and the prepared catalyst was tested for the esterification of oleic...

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Bibliographic Details
Published in:Journal of the Chinese Chemical Society (Taipei) 2019-06, Vol.66 (6), p.608-613
Main Authors: Amouhadi, Elham, Fazaeli, Razieh, Aliyan, Hamid
Format: Article
Language:English
Subjects:
Ammonia
biodiesel
Biodiesel fuels
Catalysis
Catalysts
Catalytic activity
Esterification
heterogeneous catalyst
Infrared analysis
Manganese dioxide
metal‐organic frameworks (MOFs)
Oleic acid
Scanning electron microscopy
Thermogravimetry
Transmission electron microscopy
X-ray diffraction
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Summary:The main objective of this study is to develop efficient and environmentally benign heterogeneous catalysts for biodiesel production. For this purpose, a heterogeneous MnO2@Mn(btc) catalyst was prepared by the solvothermal method, and the prepared catalyst was tested for the esterification of oleic acid. Various techniques such as X‐ray diffraction, scanning and transmission electron microscopy, Brunauer–Emmett–Teller (BET) method, infrared spectroscopy, thermogravimetry, and NH3‐TPD (temperature programmed desorption) analysis were employed for the characterization of the solid catalyst. The solid catalyst with MnO2@Mn(btc) loading of 15% showed high catalytic activity and long durability in the esterification of oleic acid, in which the fatty acid methyl ester yield reached 98% consecutively for at least five cycles under mild conditions. MnO2@Mn(btc) catalyst was prepared by solvothermal method, and characterized by XRD, SEM, TEM, BET‐BJH, FTIR, TG‐DTG, and NH3‐TPD. This new catalyst provides a new environmentally friendly route to the esterification of oleic acid, in which the fatty acid methyl ester yield reaches 98% consecutively for at least 5 cycles under mild conditions.
ISSN:0009-4536
2192-6549
DOI:10.1002/jccs.201800288