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Quantifying the dominant factors in Cu catalyst deactivation during glycerol hydrogenolysis

Tapas Rajkhowa (UGent) , Guy Marin (UGent) and Joris Thybaut (UGent)
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Abstract
Long term stability of a commercial Cu-based glycerol hydrogenolysis catalyst has been studied in an isothermal trickle-bed reactor at 473–503 K in the presence of impurities, such as S, Cl and glycerides. While glycerides have the least effect on the catalytic activity, the increase in the extent of deactivation with temperature as a consequence of thiophene indicates a kinetic rather than a thermodynamic adsorption effect. The threshold driven, ‘sudden’ manner in which deactivation manifests itself in case of Cl is indicative of sintering. A deactivation model accounting for the activity loss with changing concentration of impurities and temperature, was constructed.
Keywords
COPPER METAL-CATALYSTS, VALUE-ADDED PRODUCTS, PROPYLENE-GLYCOL, METHANOL SYNTHESIS, REACTION-MECHANISM, CU/SIO2 CATALYSTS, CONVERSION, PHASE, DERIVATIVES, KINETICS

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Citation

Please use this url to cite or link to this publication:

Chicago
Rajkhowa, Tapas, Guy Marin, and Joris Thybaut. 2017. “Quantifying the Dominant Factors in Cu Catalyst Deactivation During Glycerol Hydrogenolysis.” Journal of Industrial and Engineering Chemistry 54: 270–277.
APA
Rajkhowa, T., Marin, G., & Thybaut, J. (2017). Quantifying the dominant factors in Cu catalyst deactivation during glycerol hydrogenolysis. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, 54, 270–277.
Vancouver
1.
Rajkhowa T, Marin G, Thybaut J. Quantifying the dominant factors in Cu catalyst deactivation during glycerol hydrogenolysis. JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY. 2017;54:270–7.
MLA
Rajkhowa, Tapas, Guy Marin, and Joris Thybaut. “Quantifying the Dominant Factors in Cu Catalyst Deactivation During Glycerol Hydrogenolysis.” JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY 54 (2017): 270–277. Print.
@article{8536754,
  abstract     = {Long term stability of a commercial Cu-based glycerol hydrogenolysis catalyst has been studied in an isothermal trickle-bed reactor at 473--503 K in the presence of impurities, such as S, Cl and glycerides. While glycerides have the least effect on the catalytic activity, the increase in the extent of deactivation with temperature as a consequence of thiophene indicates a kinetic rather than a thermodynamic adsorption effect. The threshold driven, {\textquoteleft}sudden{\textquoteright} manner in which deactivation manifests itself in case of Cl is indicative of sintering. A deactivation model accounting for the activity loss with changing concentration of impurities and temperature, was constructed.},
  author       = {Rajkhowa, Tapas and Marin, Guy and Thybaut, Joris},
  issn         = {1226-086X },
  journal      = {JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY},
  keyword      = {COPPER METAL-CATALYSTS,VALUE-ADDED PRODUCTS,PROPYLENE-GLYCOL,METHANOL SYNTHESIS,REACTION-MECHANISM,CU/SIO2 CATALYSTS,CONVERSION,PHASE,DERIVATIVES,KINETICS},
  language     = {eng},
  pages        = {270--277},
  title        = {Quantifying the dominant factors in Cu catalyst deactivation during glycerol hydrogenolysis},
  url          = {http://dx.doi.org/10.1016/j.jiec.2017.05.040},
  volume       = {54},
  year         = {2017},
}

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