SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (7): 1138-1146.DOI: 10.1016/j.cjche.2015.03.012

• CATALYSIS, KINETICS AND REACTION ENGINEERING • Previous Articles     Next Articles

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

Sergey Danov1, Anton Esipovich1,2, Artem Belousov1,2, Anton Rogozhin1,2   

  1. 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:2015-08-21 Published:2015-07-28
  • 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).

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

Sergey Danov1, Anton Esipovich1,2, Artem Belousov1,2, Anton Rogozhin1,2   

  1. 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
  • 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).

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

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