CJCU

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (4): 552.

• Articles • Previous Articles     Next Articles

EXAFS Studies of Ni-S Catalyst for Hydrogenation of Oils and Fat

XIE Jin-Hai1, WANG Qi-Wu2   

  1. 1. Department of Applied Chemistry, Harbin Institute of Technology, Harbin, 150006;
    2. Department of Modern Chemistry, University of Science and Technology of China, Hefei
  • Received:1992-07-23 Revised:1992-12-15 Online:1993-04-24 Published:1993-04-24

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Abstract: The structure of Ni-Scatalyst used for hydrogenation of oils and fat was studied with Ni-Kedge extended X-ray absorption fine structure(EXAFS) speetrophotometry.Tt was found that after the Ni catalyst was poisoned with sulphur, the compound of Ni3S2 was formed, and the 3CNspace of Ni was occupied by S.The addition of sulphur decreased the activity of Ni catalyst, however, it exhibit a high selectivity for the formation of trans-oleate.

Key words: Ni-S catalyst, Hydrogenation of oils and fat, EX AFS

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