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Investigation of Thermodynamic Model for Ceria Promoted Nickel Catalyst Supported on Nanocrystalline MgO in Dry Reforming of Methane
oleh: Masoud Khajenoori, Fereshteh Meshkani, mehran rezaei
Format: | Article |
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Diterbitkan: | Semnan University 2018-06-01 |
Deskripsi
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.