Environmental Engineering Research

Korean Society of Environmental Engineers (대한환경공학회)
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An important factor for the water gas shift reaction activity of Cu-loaded cubic Ce0.8Zr0.2O2 catalysts

  • Jang, Won-Jun (Department of Environmental Engineering, Yonsei University) ;
  • Roh, Hyun-Seog (Department of Environmental Engineering, Yonsei University) ;
  • Jeong, Dae-Woon (School of Civil, Environmental and Chemical Engineering, Changwon National University)
  • Received : 2018.01.22
  • Accepted : 2018.03.21
  • Published : 2018.09.30
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Abstract

The Cu loading of a cubic $Ce_{0.8}Zr_{0.2}O_2$-supported Cu catalyst was optimized for a single-stage water gas shift (WGS) reaction. The catalyst was prepared by a co-precipitation method, and the WGS reaction was performed at a gas hourly space velocity of $150,494h^{-1}$. The results revealed that an 80 wt% $Cu-Ce_{0.8}Zr_{0.2}O_2$ catalyst exhibits excellent catalytic performance and 100% $CO_2$ selectivity ($X_{CO}=27%$ at $240^{\circ}C$ for 100 h). The high activity of 80 wt% $Cu-Ce_{0.8}Zr_{0.2}O_2$ catalyst is attributed to the presence of abundant surface Cu atoms and the low activation energy of the resultant process.

Keywords

References

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