화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.17, No.3, 596-602, May, 2011
DOI10.1016/j.jiec.2011.05.002  Export Citation
Size dependence on reduction kinetic of iron based Fischer.Tropsch catalyst
Ali Nakhaei Pour1, 2, †, Mohammad Reza Housaindokht1, 3, Ensieh Ganji Babakhani2, Mohammad Irani2, and Seyed Mehdi Kamali Shahri4
  • 1Department of Chemistry, Ferdowsi University of Mashhad, P.O. Box 91775-1436, Mashhad, Iran
  • 2Research Institute of Petroleum Industry, National Iranian Oil Company, P.O. Box 18745-4163, Tehran, Iran
  • 3Bimolecular Research Center, Ferdowsi University of Mashhad, P.O. Box 91775-1436, Mashhad, Iran
  • 4Chemical Engineering Department, Penn State University, State College, PA, USA
E-mail:
Catalyst structure has a significant influence on its kinetic behavior. In this work, effect of nanoparticle size on reduction kinetics of iron FTS catalyst [0] has been studied. Fe/Cu/La catalysts were prepared via bulk precipitation and microemulsion methods to produce a series of iron oxides with different particle size. In microemulsion method, the catalyst particle size was changed with type of surfactant such as SDS, Triton X-100, and SDBS. Size dependence on reduction rate constant (kr) was evaluated using the formation and growth of nuclei model (3D). The results showed that when the catalyst particle size increased, the reduction rate of iron catalyst decreased. A value of 3.11 nm and 0.53 h^(-1) were obtained for η parameter and size independent part of reduction rate constant (k∞), which are consistent with the values reported in literatures.
Keywords:Fischer-Tropsch synthesis;Iron-based catalyst;Catalyst reduction;Microemulsion
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