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

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

Sumittra Charojrochkul

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

Suttichai Assabumrungrat

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

Wisitsree Wiyaratn

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

Published

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&gt;-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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