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https://doi.org/10.15255/CABEQ.2014.2093

Esterification of Glycerol with Acetic Acid over Highly Active and Stable Alumina-based Catalysts: A Reaction Kinetics Study

S. A. Rane ; Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee- 247667, Uttarakhand, India
S. M. Pudi ; Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee- 247667, Uttarakhand, India
P. Biswas ; Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee- 247667, Uttarakhand, India

Puni tekst: engleski, pdf (574 KB) str. 33-45 preuzimanja: 1.742* citiraj
APA 6th Edition
Rane, S.A., Pudi, S.M. i Biswas, P. (2016). Esterification of Glycerol with Acetic Acid over Highly Active and Stable Alumina-based Catalysts: A Reaction Kinetics Study. Chemical and Biochemical Engineering Quarterly, 30 (1), 33-45. https://doi.org/10.15255/CABEQ.2014.2093
MLA 8th Edition
Rane, S. A., et al. "Esterification of Glycerol with Acetic Acid over Highly Active and Stable Alumina-based Catalysts: A Reaction Kinetics Study." Chemical and Biochemical Engineering Quarterly, vol. 30, br. 1, 2016, str. 33-45. https://doi.org/10.15255/CABEQ.2014.2093. Citirano 25.11.2020.
Chicago 17th Edition
Rane, S. A., S. M. Pudi i P. Biswas. "Esterification of Glycerol with Acetic Acid over Highly Active and Stable Alumina-based Catalysts: A Reaction Kinetics Study." Chemical and Biochemical Engineering Quarterly 30, br. 1 (2016): 33-45. https://doi.org/10.15255/CABEQ.2014.2093
Harvard
Rane, S.A., Pudi, S.M., i Biswas, P. (2016). 'Esterification of Glycerol with Acetic Acid over Highly Active and Stable Alumina-based Catalysts: A Reaction Kinetics Study', Chemical and Biochemical Engineering Quarterly, 30(1), str. 33-45. https://doi.org/10.15255/CABEQ.2014.2093
Vancouver
Rane SA, Pudi SM, Biswas P. Esterification of Glycerol with Acetic Acid over Highly Active and Stable Alumina-based Catalysts: A Reaction Kinetics Study. Chemical and Biochemical Engineering Quarterly [Internet]. 2016 [pristupljeno 25.11.2020.];30(1):33-45. https://doi.org/10.15255/CABEQ.2014.2093
IEEE
S.A. Rane, S.M. Pudi i P. Biswas, "Esterification of Glycerol with Acetic Acid over Highly Active and Stable Alumina-based Catalysts: A Reaction Kinetics Study", Chemical and Biochemical Engineering Quarterly, vol.30, br. 1, str. 33-45, 2016. [Online]. https://doi.org/10.15255/CABEQ.2014.2093

Sažetak
The catalytic activity of Cu- or Ni monometallic and Cu-Ni bimetallic (Cu/Ni ratio = 3, 1, 0.33) catalysts supported on γ-Al2O3 and SO42–/γ-Al2O3 catalysts were evaluated for esterification of glycerol. The reactions were performed in a batch reactor under reflux at standard reaction conditions: temperature 110 °C, atmospheric pressure, glycerol to acetic acid molar ratio 1:9, and catalyst loading 0.25 g. The best catalytic activity was observed over 2 M SO42–/γ-Al2O3 catalyst, which showed the glycerol conversion of 97 % within 2 hours of reaction. At this condition, the selectivity to glyceryl monoacetate (MAG), glyceryl diacetate (DAG), and glyceryl triacetate (TAG) were 27.0 %, 49.9 % and 23.1 %, respectively, after 5 h of reaction. After three consecutive runs, the 2 M SO42–/γ-Al2O3 catalysts showed superior performance and no loss in activity was observed. The reaction kinetics results over 2 M SO42–/γ-Al2O3 catalyst showed that the dependence on the reaction rate to glycerol concentration was of pseudo-second order, while the activation energy was found to be 106 kJ mol–1.

Ključne riječi
glycerol esterification; Cu-Ni bimetallic catalysts; SO42–/γ-Al2O3 catalyst; stability; DAG and TAG selectivity

Hrčak ID: 155611

URI
https://hrcak.srce.hr/155611

Posjeta: 2.066 *