Reactors, Kinetics, and Catalysis

Partial oxidation of palm fatty acids over Ce-ZrO2: Roles of catalyst surface area, lattice oxygen capacity and mobility

  1. Navadol Laosiripojana1,*,
  2. Worapon Kiatkittipong2,
  3. Suttichai Assabumrungrat3

Article first published online: 29 DEC 2010

DOI: 10.1002/aic.12491

Issue

AIChE Journal

AIChE Journal

Volume 57, Issue 10, pages 2861–2869, October 2011

Additional Information

How to Cite

Laosiripojana, N., Kiatkittipong, W. and Assabumrungrat, S. (2011), Partial oxidation of palm fatty acids over Ce-ZrO2: Roles of catalyst surface area, lattice oxygen capacity and mobility. AIChE J., 57: 2861–2869. doi: 10.1002/aic.12491

Author Information

  1. 1

    The Joint Graduate School of Energy and Environment, CHE Center for Energy Technology and Environment, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand

  2. 2

    Dept. of Chemical Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand

  3. 3

    Dept. of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand

*The Joint Graduate School of Energy and Environment, CHE Center for Energy Technology and Environment, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand

Publication History

  1. Issue published online: 9 SEP 2011
  2. Article first published online: 29 DEC 2010
  3. Accepted manuscript online: 4 NOV 2010 09:32AM EST
  4. Manuscript Revised: 29 OCT 2010
  5. Manuscript Received: 12 MAY 2010

Funded by

  • Thailand Research Fund (TRF)

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Keywords:

  • palm fatty acid distillate;
  • hydrogen;
  • partial oxidation;
  • reforming;
  • Ce-ZrO2

Abstract

Nanoscale Ce-ZrO2, synthesized by cationic surfactant-assisted method, has useful partial oxidation activity to convert palm fatty acid distillate (PFAD; containing C16–C18 compounds) to hydrogen-rich gas with low carbon formation problem under moderate temperatures. At 1123 K with the inlet O/C ratio of 1.0, the main products from the reaction are H2, CO, CO2, and CH4 with slight formations of gaseous high hydrocarbons (i.e., C2H4, C2H6, and C3H6), which could all be eliminated by applying higher O/C ratio (above 1.25) or higher temperature (1173 K). Compared with the microscale Ce-ZrO2 synthesized by conventional coprecipitation method, less H2 production with relatively higher C2H4, C2H6, and C3H6 formations are generated from the reaction over microscale Ce-ZrO2. The better reaction performances of nanoscale Ce-ZrO2 are linearly correlated with its higher specific surface area as well as higher oxygen storage capacity and lattice oxygen mobility, according to the reduction/oxidation measurement and 18O/16O isotope exchange study. © 2010 American Institute of Chemical Engineers AIChE J, 2011

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