Catalysis Letters

, Volume 73, Issue 1, pp 15–19

Steam reforming of n-butane on Pd/ceria

  • X. Wang
  • R.J. Gorte
Article

Abstract

We have examined the steam reforming of n-butane on ceria, 1 wt% Pd/ceria, 1 wt% Pd/alumina, and 15 wt% Ni/silica between 573 and 873 K, with H2O : C ratios between 1.0 and 2.0. No stable rates could be observed on Ni/silica due to rapid coking under these conditions. While rates were stable on the other catalysts, Pd/ceria showed a much higher activity than either Pd/alumina or ceria individually. Of additional interest, CO2 : CO ratios were much higher on Pd/ceria and approached equilibrium. The reaction order for n-butane on Pd/ceria was 0.15. For H2O, reaction order changed from 0.6 to zero at the stoichiometric, n-butane : H2O ratio. It is suggested that the high activity of Pd/ceria for this reaction is due to a dual-function mechanism, in which ceria can be oxidized by H2O and then supply oxygen to the Pd.

n-butane steam-reforming ceria Pd/ceria Pd/alumina Ni/silica fuel cells 

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References

  1. [1]
    R.J. Farrauto andC.H. Batholomew, Fundamentals of Industrial Catalytic Processes, 1st Ed. (Blackie, London, 1997) pp. 341-357.Google Scholar
  2. [2]
    K.S.M. Bhatta andG.M. Dixon, Trans. Faraday Soc. 63 (1967) 2217.Google Scholar
  3. [3]
    C.R. Schnell, J. Chem. Soc. B (1970) 158.Google Scholar
  4. [4]
    T.R. Phillips,T.A. Yarwood,J. Mulhall andG.E. Turner, J. Catal. 17 (1970) 28.Google Scholar
  5. [5]
    J.R. Rostrup-Nielsen, J. Catal. 31 (1973) 173.Google Scholar
  6. [6]
    D.L. Trimm, Catal. Today 37 (1997) 233.Google Scholar
  7. [7]
    D.L. Trimm, Catal. Today 49 (1999) 3.Google Scholar
  8. [8]
    T. Borowiecki, Appl. Catal. 4 (1982) 223.Google Scholar
  9. [9]
    E. Tracz,R. Scholz andT. Borowiecki, Appl. Catal. 66 (1990) 133.Google Scholar
  10. [10]
    T. Borowiecki,A. Golebiowski andB. Stasinska, Appl. Catal. A 153 (1997) 141.Google Scholar
  11. [11]
    L. Kepinski,B. Stasinska andT. Borowiecki, Carbon 38 (2000) 1845.Google Scholar
  12. [12]
    T. Borowiecki andA. Golebiowski, Catal. Lett. 25 (1994) 309.Google Scholar
  13. [13]
    A. Igarashi,T. Ohtaka andS. Motoki, Catal. Lett. 13 (1991) 189.Google Scholar
  14. [14]
    R. Craciun,B. Shereck andR.J. Gorte, Catal. Lett. 51 (1998) 149.Google Scholar
  15. [15]
    R. Craciun andR.J. Gorte, Rev. Roum. Chim. 44 (1999) 1085.Google Scholar
  16. [16]
    G.S. Zafiris andR.J. Gorte, J. Catal. 139 (1993) 561.Google Scholar
  17. [17]
    M.Y. Smirnov andG.W. Graham, Catal. Lett. 72 (2001) 39.Google Scholar
  18. [18]
    T. Bunluesin,H. Cordatos andR.J. Gorte, J. Catal. 157 (1995) 222.Google Scholar
  19. [19]
    T. Bunluesin,E.S. Putna andR.J. Gorte, Catal. Lett. 41 (1996) 1.Google Scholar
  20. [20]
    T. Bunluesin,R.J. Gorte andG.W. Graham, Appl. Catal. B 15 (1998) 107.Google Scholar
  21. [21]
    S. Sharma,S. Hilaire,J.M. Vohs,R.J. Gorte andH.-W. Jen, J. Catal. 190 (2000) 199.Google Scholar
  22. [22]
    S. Hilaire,S. Sharma,R.J. Gorte,J.M. Vohs andH.-W. Jen, Catal. Lett. 70 (2000) 131.Google Scholar
  23. [23]
    A. Trovarelli, Catal. Rev. Sci. Eng. 38 (1996) 439.Google Scholar
  24. [24]
    S. Hilaire, X.Wang, T. Luo, R.J. Gorte and J.Wagner, Appl. Catal. A,submitted.Google Scholar
  25. [25]
    Q. Zhuang,Y. Qin andL. Chang, Appl. Catal. 70 (1991) 1.Google Scholar
  26. [26]
    R.T.K. Baker, Carbon 27 (1989) 315.Google Scholar
  27. [27]
    K. Hernadi,A. Fonseca,J.B. Nagy,A. Siska andI. Kiricsi, Appl. Catal. A 199 (2000) 245.Google Scholar
  28. [28]
    B.C.H. Steele, Solid State Ionics 86 (1996) 1223.Google Scholar
  29. [29]
    S.M. Stagg,E. Romeo,C. Padro andD.E. Resasco, J. Catal. 178 (1998) 137.Google Scholar
  30. [30]
    S. Sharma,S. Hilaire andR.J. Gorte, Stud. Surf. Sci. Catal. 130 (2000) 677.Google Scholar
  31. [31]
    T. Maillet,J. Barbier andD. Duprez, Appl. Catal. B 9 (1996) 251.Google Scholar

Copyright information

© Plenum Publishing Corporation 2001

Authors and Affiliations

  • X. Wang
    • 1
  • R.J. Gorte
    • 1
  1. 1.Department of Chemical EngineeringUniversity of PennsylvaniaPhiladelphiaUSA

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