Synthesis of Na<sub>2</sub>WO<sub>4</sub>-Mn Supported YSZ as a Potential Anode Catalyst for Oxidative Coupling of Methane in SOFC Reactor

Authors

  • Weerinda Appamana Chulalongkorn University
  • Sumittra Charojrochkul National Metal and Materials Technology Center (MTEC)
  • Suttichai Assabumrungrat Chulalongkorn University
  • Wisitsree Wiyaratn King Mongkut's University of Technology Thonburi

DOI:

https://doi.org/10.4186/ej.2015.19.1.13

Keywords:

C2 hydrocarbons, OCM, YSZ, Na2WO4-Mn

Abstract

The oxidative coupling of methane (OCM) over a 5%Na2WO4-2%Mn on YSZ, has been investigated in a fixed bed reactor (FBR) and a solid oxide fuel cell reactor (SOFC). A 60% C2 selectivity and a 26% CH4 conversion have been obtained in a FBR at 800oC and CH4/O2 of 4 : 1. Importantly, an addition of Na2WO4-Mn to YSZ support can significantly enhance the performance of the catalyst especially C2 hydrocarbons selectivity and CH4 conversion. A maximum power density of 7.8 mW cm−2 was achieved at 800°C with CH4 in the SOFC reactor having a 50 μm thick YSZ electrolyte. The CH4 conversion and C2 selectivity at 800°C were 1.1% and 85.2%, respectively.

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Author Biographies

Weerinda Appamana
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Centre of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Sumittra Charojrochkul
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National Metal and Materials Technology Center (MTEC), Pathumthani 12120, Thailand

Suttichai Assabumrungrat
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Centre of Excellence in Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

Wisitsree Wiyaratn
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Faculty of Industrial Education and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10140, Thailand

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Published In
Vol 19 No 1, Jan 30, 2015
How to Cite
[1]
W. Appamana, S. Charojrochkul, S. Assabumrungrat, and W. Wiyaratn, “Synthesis of Na<sub>2</sub>WO<sub>4</sub>-Mn Supported YSZ as a Potential Anode Catalyst for Oxidative Coupling of Methane in SOFC Reactor”, Eng. J., vol. 19, no. 1, pp. 13-20, Jan. 2015.
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