Investigation of Thermodynamic Model for Ceria Promoted Nickel Catalyst Supported on Nanocrystalline MgO in Dry Reforming of Methane

Document Type : Chemistry Article

Authors

1 Chemical Eng. Department, University of Kashan

2 Faculty of Engineering, Chemical Eng. Department, University of Kashan

Abstract

In this research paper, ceria promoted nickel catalysts supported on nanocrystalline MgO were prepared and employed in methane reforming with carbon dioxide for syngas production. The textural properties of the prepared catalyst (10%Ni-7%CeO2/MgO) was characterized by the X-ray diffraction (XRD) and nitrogen adsorption (BET) techniques in order to study the crystalline phases and also the textural characteristics of this nickel based catalyst. The characterization results showed that the prepared nickel catalyst possessed BET area of 58/08 m2 g-1, pore volume of 0.40 cm3 g-1 and pore size of 19.45 nm. In addition, the thermodynamic model was investigated using the Gibbs energy minimization method and the results were compared with experimental tests. The results confirmed that the deviation of experimental data and data predicted by the model (absolute average deviation) for methane and carbon dioxide conversions, yield of H2 and CO, H2/CO ratio were 3.969, 1.95, 1.78, 2.32 and 0.07, respectively.

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References

 

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Journal of Modeling in Engineering
Volume 16, Issue 53
July 2018
Pages 389-396

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History

  • Receive Date: 26 October 2013
  • Revise Date: 07 February 2017
  • Accept Date: 15 November 2017

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