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Hydrogen production by thermo-catalytic conversion of methane over lanthanum strontium cobalt ferrite (LSCF) and αAl2O3 supported Ni catalysts

Ayodele, Bamidele V. and Mohamed Yazrul, Mohd Yassin and Rosmawati, Naim and Sureena, Abdullah (2019) Hydrogen production by thermo-catalytic conversion of methane over lanthanum strontium cobalt ferrite (LSCF) and αAl2O3 supported Ni catalysts. Journal of the Energy Institute, 92 (4). pp. 892-903. ISSN 1743-9671

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Abstract

This study investigates hydrogen production by thermo-catalytic steam methane reforming over lanthanum strontium cobalt ferrite supported Nickel (Ni/LSCF) and commercial Ni/αAl2O3 catalysts. The Ni/LSCF catalyst was synthesized using wet impregnation method and characterized by XRD, TEM, SEM, EDX, N2-physisorption analysis, and H2-TPR. The characterization analyses show that Ni/LSCF and Ni/αAl2O3 possess the required physicochemical properties to catalyze the steam methane reforming reaction. The activity of the Ni/LSCF catalyst in steam methane reforming at 750 °C, 800 °C, and 850 °C resulted in CH4 conversions of 73.46%, 78.67%, and 87.56%, respectively. In addition, hydrogen (H2) yields of 64.34%, 72.57%, and 82.56% were obtained from the steam methane reforming at 750 °C, 800 °C, and 850 °C, respectively over the Ni/LSCF catalyst. The Ni/LSCF catalyst was found to have higher activities in term of CH4conversion and H2 yield compare to the commercial Ni/αAl2O3. However, the stability test conducted at 480 min time on stream (TOS) revealed that the commercial Ni-αAl2O3 was more stable in the steam methane reforming than the Ni/LSCF catalyst. The characterization of the used catalysts by TEM, XRD and TGA shows evidence of carbon deposition mostly on the used Ni/LSCF catalyst.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Steam methane reforming; Syngas; Lanthanum strontium cobalt ferrite; Hydrogen; Ni-catalysts
Subjects: Q Science > QD Chemistry
T Technology > TP Chemical technology
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 25 Oct 2019 03:46
Last Modified: 25 Oct 2019 03:46
URI: http://umpir.ump.edu.my/id/eprint/25380
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