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Citation: Li Xiaoding, Li Yaohui, Lu Xiaowan, Cheng Jingsong, Kong Yuhua. Deactivation of Co-Mo/MgO-Al₂O₃ Type Water-Gas Shift Catalyst[J]. Chinese Journal of Applied Chemistry, ;1994, 11(1): 58-62. shu

Deactivation of Co-Mo/MgO-Al₂O₃ Type Water-Gas Shift Catalyst

1.
Hubei Research Institute of Chemistry, Wuhan 430074

Received Date: 5 July 1993
Available Online: 27 October 1993
Fund Project:

The deactivation of two commercial Co-Mo/MgO-Al₂O₃ type WGS catalyst has been studied by XRD, SEM, Raman spectroscopy,and ICP techniques. The results showed that the deactivation is mainly due to the formation of MoS₂ and MgAl₂O₄. Roasting athigher temperatures makes catalysts crystalizable.The strticture of catalysts direetly depends on the method of their preparation.Catalysts of strip shape powderized more easily.Process of regeneration lowers the stability of catalysts,The second-important reason of deactivation of catalysts is the preseence of inorganic impurities.
- Co-Mo/MgO-Al₂O₃,
- water-gas shift catalyst,
- deactivation
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Deactivation of Co-Mo/MgO-Al₂O₃ Type Water-Gas Shift Catalyst