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Chemical Papers

, Volume 71, Issue 1, pp 119–126 | Cite as

Effects of Fe on catalytic hydrogenation of palm oil in aqueous solution

  • Li-Hua WuEmail author
  • Mohd Ridzuan Nordin
  • Zahira Yaakob
  • Kong-Yong Liew
  • Jin-Lin Li
Original Paper

Abstract

Chitosan-stabilised metallic Pd (CTS-Pd) and Pt (CTS-Pt) nanoparticles were synthesised and used for the hydrogenation of palm oil. With the goal of preparing hydrogenated oil with low trans fatty acid (TFA) content under ambient conditions, Fe anion was added as the secondary metallic precursor to synthesise chitosan-stabilised bimetallic Pd–Fe (CTS-Pd–Fe) and Pt–Fe (CTS-Pt–Fe) nanoparticles. The catalytic hydrogenations with newly prepared nanoparticles were performed in aqueous solution under ambient temperature and atmospheric pressure. The addition of Fe was found to improve the catalytic activity and decrease the selectivity for TFA. Hydrogenation with CTS-Pt–Fe affords the optimal results, producing 3.8% TFA at 92.1% conversion of C18:2 and no TFA was formed until the content of C18:2 was lower than 1.7%. Based on the analyses, it can be demonstrated that the preferential conversion of C18:2 to cis C18:1 and cis C18:1 to C18:0 leads to the low formation of TFA.

Keywords

Nanoparticles Fe Hydrogenation Palm oil Trans fatty acid 

Notes

Acknowledgements

This work was supported by the Fundamental Research Grant Scheme RDU 08010. The authors would like to thank the South-Central University for Nationalities for the TEM and XPS analyses, and one of the authors, Wu Li-Hua, wishes to acknowledge the financial support received from Universiti Malaysia Pahang. The authors express their thanks to Elsevier for permission to reproduce the TEM micrograph and particle size distribution of CTS-Pd–Fe and CTS-Pt–Fe.

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Copyright information

© Institute of Chemistry, Slovak Academy of Sciences 2016

Authors and Affiliations

  • Li-Hua Wu
    • 1
    Email author
  • Mohd Ridzuan Nordin
    • 2
  • Zahira Yaakob
    • 1
  • Kong-Yong Liew
    • 3
  • Jin-Lin Li
    • 3
  1. 1.Department of Chemical and Process Engineering, Faculty of Engineering and Built EnvironmentUniversiti Kebangsaan MalaysiaBangiMalaysia
  2. 2.Faculty of Industrial Science and TechnologyUniversiti Malaysia PahangKuantanMalaysia
  3. 3.Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, Hubei ProvinceSouth-Central University for NationalitiesWuhanChina

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