Advertisement

Gold Bulletin

, Volume 40, Issue 3, pp 219–224 | Cite as

Low-pressure methanol/ dimethylether synthesis from syngas on gold-based catalysts

  • Arthur Mpela
  • Diane Hildebrandt
  • David Glasser
  • Mike S Scurrell
  • Graham J Hutchings
Open Access
Gold 2006 Scientific Papers

Abstract

The hydrogenation of carbon monoxide over Au/ZnO catalysts has been re-examined and new data is presented on the way in which the product distribution can be manipulated by choice of coadded solids such as alumina or zeolite-Y. This comparative study reveals that while ZnO itself leads to a high selectivity to methanol, the incorporation of gold drastically alters the product spectrum and leads to a very high selectivity to hydrocarbons. The hydrocarbon selectivity at a reaction temperature of 300oC is in fact much higher than in the case where alumina or zeolite-Y is introduced into a composite catalyst comprising the Au/ZnO and the acidic solid. In the latter case DME is a major product. Significant light hydrocarbon formation on gold-based systems under these circumstances appears not to have been discussed before. The reactions taking place on these catalysts, the selectivities and absolute activities are discussed and the role of gold highlighted.

Keywords

Zeolite Syngas CH3OCH3 Gold Catalyst Composite Catalyst 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    K. Kinoshita, M. Oquma, S. Goto, K. Sugiyama, M. Mori, T. Watanabe, SAE Technical Paper 2003-01-3193, SAE International, Washington, 2003Google Scholar
  2. 2.
    N. Bhana, ‘Optimisation of the Performance of a Methanol/Dimethyl Ether Fuelled Compression Ignition Engine’, MSc dissertation, University of the Witwatersrand South Africa, 2002Google Scholar
  3. 3.
    C. N. Satterfield, ‘Heterogeneous Catalysis in Industrial Practice’, Second Edition, 1991, Pages 22–30, 438–467, New YorkGoogle Scholar
  4. 4.
    G. C. Bond, C. Louis and D. T. Thompson, ‘Catalysis by Gold’, Imperial College Press, London, 2006CrossRefGoogle Scholar
  5. 5.
    H. Sakurai, ‘Hydrogenation of Carbon Oxides over Metal Oxides’, ONRI, Technical Report, Japan, 1999Google Scholar
  6. 6.
    M. Haruta and H. Sakurai,Appl. Catal. A, 1993,102, 125CrossRefGoogle Scholar
  7. 7.
    D. R. Dubois, D. Obrzut and J. A. Guin,Fuel Proc. Technology, 2003,83, 203CrossRefGoogle Scholar
  8. 8.
    H. Pines, ‘The Chemistry of Catalytic Hydrocarbon Conversions’, Academic Press, 1981, New YorkGoogle Scholar
  9. 9.
    F. A. P. Cavalcanti, A. Y. Stakheev and W. M. H. Sachtler,J. Catal., 1992,134, 226CrossRefGoogle Scholar
  10. 10.
    K. Asami, Q. Zhang, X. Li, S. Asaoka and K. Fujimoto,Stud. Surf. Sci. Catal., 2004,147, 427CrossRefGoogle Scholar
  11. 11.
    C. D. Chang, W. H. Lang and A. J. Silvestri,J. Catal., 1979,56, 268CrossRefGoogle Scholar
  12. 12.
    K. Fujimoto, Y. Kudo and H. Tominaga,J. Catal., 1984,87, 136CrossRefGoogle Scholar
  13. 13.
    K. Fujimoto, Y. Kudo and H. Tominaga,J. Catal., 1985,94, 16CrossRefGoogle Scholar
  14. 14.
    Y. Zhao, A. Mpela, D. I. Enache, S. H. Taylor, D. Hildebrandt, D. Glasser, G. J. Hutchings, M. P. Atkins and M. S. Scurrell, Paper presented at ACS Nat Meeting, San Diego 2005,Stud. Surf. Sci. Catal. 2006,163, in pressGoogle Scholar
  15. 15.
    M. Manzoli, A. Chiorino and F. Boccuzzi,Appl. Catal. B: Environ., 2005,57, 201CrossRefGoogle Scholar
  16. 16.
    F. S. Ramos, A.M. Duarte de Farias and L. G. Appl,Catal. Today, 2005,101, 39CrossRefGoogle Scholar
  17. 17.
    T. H. Fleisch and R. A. Sills,Stud. Surf. Sci. Catal., 2004,147, 31CrossRefGoogle Scholar
  18. 18.
    J. L. Robbins, E. Iglesia, C. P. Kelkar and B. DeRites,Catal. Lett. 1991,10, 1CrossRefGoogle Scholar
  19. 19.
    Q. Sun,Stud. Surf. Sci. Catal., 2004,147, 397CrossRefGoogle Scholar

Copyright information

© World Gold Council 2007

Authors and Affiliations

  • Arthur Mpela
    • 1
  • Diane Hildebrandt
    • 1
  • David Glasser
    • 1
  • Mike S Scurrell
    • 2
  • Graham J Hutchings
    • 3
  1. 1.School of Chemical and Metallurgical EngineeringUniversity of the WitwatersrandWitsJohannesburgSouth Africa
  2. 2.Molecular Sciences Institute, School of ChemistryUniversity of the WitwatersrandWitsJohannesburgSouth Africa
  3. 3.School of ChemistryCardiff UniversityCardiffUK

Personalised recommendations