Effect of Preparation Methods on Al2O3 Supported CuO-CeO2-ZrO2 Catalysts for CO Oxidation

DOI: https://doi.org/10.9767/bcrec.7.2.3646.112-123

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Submitted: 14-06-2012
Published: 04-12-2012
Section: Original Research Articles
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To examine the effect of preparation methods, four catalyst samples having same composition (CuCe5.17Zr3.83Ox/g-Al2O3 (15wt%) were prepared by four different methods for CO oxidation. The catalysts were prepared by co-impregnation, citric acid sol-gel, urea nitrate combustion and urea gelation co-precipitation methods, and characterized by BET, XRD, TGA/DSC and SEM. The The air oxidation of CO was carried out in a tubular fixed bed reactor under the following operating conditions: catalyst weight - 100 mg, temperature - ambient to 250 oC, pressure - atmospheric, 2.5% CO in air, total feed rate - 60 ml/min.  It was observed that the catalytic activity greatly influenced by the preparation methods. The highest activity of the catalyst prepared by the sol gel method appeared to be associated with its largest BET surface area. All the four catalysts were active for CO oxidation and did not show deactivation of catalytic activity for 50 hours of continuous runs. The ranking order of the preparation methods of the catalyst is as follows: sol-gel > co-impregnation > urea gelation > urea nitrate combustion. Copyright © 2012 by BCREC UNDIP. All rights reserved

Received: 14th June 2012, Revised: 8th September 2012, Accepted: 19th September 2012

[How to Cite: G. Rattan, R. Prasad, R.C.Katyal. (2012). Effect of Preparation Methods on Al2O3 Supported CuO-CeO2-ZrO2 Catalysts for CO Oxidation. Bulletin of Chemical Reaction Engineering & Catalysis, 7(2): 112-123. doi:10.9767/bcrec.7.2.3646.112-123]

[How to Link / DOI: http://dx.doi.org/10.9767/bcrec.7.2.3646.112-123 ]

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Keywords

CO oxidation; CuO-CeO2-ZrO2/Al2O3; Catalysts preparation methods; characterization

  1. Gaurav Rattan 
    Department of Polymer Science & Chemical Technology, DTU, Delhi 110042,, India
  2. Ram Prasad 
    Department of Chemical Engineering and Technology, Institute of Technology, Banaras Hindu University,, India
  3. Ramesh Chander Katyal 
    Department of Chemical Engineering & Technology, P.U., Chandigarh 160014,, India
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