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Transactions of Tianjin University

, Volume 25, Issue 5, pp 504–516 | Cite as

Optimization of Co-precipitation Condition for Preparing Molybdenum-Based Sulfur-Resistant Methanation Catalysts

  • Jiahui Zhang
  • Xiaoshan Zhang
  • Baowei Wang
  • Zhenhua LiEmail author
  • Xinbin Ma
Research Article
  • 29 Downloads

Abstract

In this study, the effects of ZrO2 carrier precursors, MoO3 loading, and washing treatment on the catalytic performance of MoO3/ZrO2 toward sulfur-resistant methanation were investigated. All the catalysts were prepared by co-precipitation method and further characterized by N2 adsorption–desorption, H2-temperature-programmed reduction, X-ray diffraction, Raman spectroscopy and transmission electron microscopy. The prepared MoO3/ZrO2 catalysts were tested in a continuous-flow pressurized fixed bed reactor for CO methanation. The results revealed that the carrier precursors, MoO3 loading, and washing treatment affected not only the crystalline phase of Mo species but also the grain size of ZrO2 carrier and consequently influenced the MoO3/ZrO2 activity toward sulfur-resistant methanation. The 25 wt% MoO3/ZrO2 catalyst prepared using Zr(NO3)4·5H2O as the precursor and treated by water washing displayed the best activity for sulfur-resistant methanation due to its greater number of octahedral Mo species and smaller ZrO2 grain size.

Keywords

Sulfur-resistant methanation Co-precipitation Molybdenum ZrO2 

Notes

Acknowledgements

This study was supported by the National Natural Science Foundation of China (No. 21576203).

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Copyright information

© Tianjin University and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Jiahui Zhang
    • 1
    • 2
  • Xiaoshan Zhang
    • 1
    • 2
  • Baowei Wang
    • 1
    • 2
  • Zhenhua Li
    • 1
    • 2
    Email author
  • Xinbin Ma
    • 1
    • 2
  1. 1.Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and TechnologyTianjin UniversityTianjinChina
  2. 2.Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin UniversityTianjinChina

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