Gas-phase dehydration of glycerol over commercial Pt/γ-Al2O3 catalysts

doi:10.1016/j.cjche.2015.03.012

Chinese Journal of Chemical Engineering ›› 2015, Vol. 23 ›› Issue (7): 1138-1146.DOI: 10.1016/j.cjche.2015.03.012

• 催化、动力学与反应工程 • 上一篇下一篇

Gas-phase dehydration of glycerol over commercial Pt/γ-Al₂O₃ catalysts

Sergey Danov¹, Anton Esipovich^1,2, Artem Belousov^1,2, Anton Rogozhin^1,2

1 Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 49 Gaidar Street, Dzerzhinsk 606026, Russian Federation;
2 Lobachevsky State University of Nizhni Novgorod, National Research University, 23, Gagarin Avenue, Nizhny Novgorod 603950, Russian Federation

出版日期:2015-07-28 发布日期:2015-08-21
通讯作者: Artem Belousov
基金资助:
This work was performed in Lobachevsky State University of Nizhni Novgorod and was supported by the Ministry of Education and Science of the Russian Federation (contract№ 02.G25.31.0119). This work was also performed as a project part of the state task in the field of scientific activity (№10.1686.2014/K).

Gas-phase dehydration of glycerol over commercial Pt/γ-Al₂O₃ catalysts

Sergey Danov¹, Anton Esipovich^1,2, Artem Belousov^1,2, Anton Rogozhin^1,2

1 Nizhny Novgorod State Technical University n.a. R.E. Alekseev, 49 Gaidar Street, Dzerzhinsk 606026, Russian Federation;
2 Lobachevsky State University of Nizhni Novgorod, National Research University, 23, Gagarin Avenue, Nizhny Novgorod 603950, Russian Federation

Online:2015-07-28 Published:2015-08-21
Contact: Artem Belousov
Supported by:
This work was performed in Lobachevsky State University of Nizhni Novgorod and was supported by the Ministry of Education and Science of the Russian Federation (contract№ 02.G25.31.0119). This work was also performed as a project part of the state task in the field of scientific activity (№10.1686.2014/K).

摘要/Abstract

摘要： Gas-phase dehydration of glycerol to produce acrolein was investigated over commercial catalysts based on γ-Al₂O₃, viz. A-64, A-56, I-62, AP-10, AP-56, AP-64 and KR-104. To understand the effect of Cl^- anions, HCl-impregnated supports have been investigated in the dehydration reaction of glycerol at 375 ℃. For comparison, various H-zeolites were also examined. It was found that the glycerol conversion over the solid acid catalysts was strongly dependent on their acidity and surface area. And the relationship between the catalytic activity and the acidity of the catalysts was discussed. The outstanding properties of Pt/γ-Al₂O₃ catalyst systems for the dehydration of glycerol were revealed. Pt/γ-Al₂O₃ catalyst (AP-64) showed the highest catalytic activity after 50 h of reaction with an acrolein selectivity of 65% at a conversion of glycerol of 90%. Based on these results, catalysts based on γ-Al₂O₃ appear to be most promising for gas phase dehydration of glycerol.

关键词: Glycerol, Dehydration, Acrolein, Zeolite, Gamma alumina

Abstract: Gas-phase dehydration of glycerol to produce acrolein was investigated over commercial catalysts based on γ-Al₂O₃, viz. A-64, A-56, I-62, AP-10, AP-56, AP-64 and KR-104. To understand the effect of Cl^- anions, HCl-impregnated supports have been investigated in the dehydration reaction of glycerol at 375 ℃. For comparison, various H-zeolites were also examined. It was found that the glycerol conversion over the solid acid catalysts was strongly dependent on their acidity and surface area. And the relationship between the catalytic activity and the acidity of the catalysts was discussed. The outstanding properties of Pt/γ-Al₂O₃ catalyst systems for the dehydration of glycerol were revealed. Pt/γ-Al₂O₃ catalyst (AP-64) showed the highest catalytic activity after 50 h of reaction with an acrolein selectivity of 65% at a conversion of glycerol of 90%. Based on these results, catalysts based on γ-Al₂O₃ appear to be most promising for gas phase dehydration of glycerol.

Key words: Glycerol, Dehydration, Acrolein, Zeolite, Gamma alumina

Sergey Danov, Anton Esipovich, Artem Belousov, Anton Rogozhin. Gas-phase dehydration of glycerol over commercial Pt/γ-Al₂O₃ catalysts[J]. Chinese Journal of Chemical Engineering, 2015, 23(7): 1138-1146.

Sergey Danov, Anton Esipovich, Artem Belousov, Anton Rogozhin. Gas-phase dehydration of glycerol over commercial Pt/γ-Al₂O₃ catalysts[J]. Chin.J.Chem.Eng., 2015, 23(7): 1138-1146.

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Gas-phase dehydration of glycerol over commercial Pt/γ-Al₂O₃ catalysts

Gas-phase dehydration of glycerol over commercial Pt/γ-Al₂O₃ catalysts

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