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1887
Volume 23, Issue 1
  • ISSN: 0032-1400

Abstract

The catalytic reforming of crude oils has been considerably improved during the last ten years by the addition of a second metal, generally rhenium or iridium, to the small amounts of platinum present in alumina supported catalysts. A most important question, from a scientific point of view, is to differentiate between the various possible states of the metal phase, which may range from a mixture of platinum and the second metal particles to homogeneous bimetallic aggregates. This differentiation is extremely difficult because of the very small size of the metallic particles. It is reported that hydrogen-oxygen titration provides evidence of the presence of small particles of pure rhenium, iridium or ruthenium in platinum bimetallic alumina supported catalysts.

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1979-01-01
2024-06-19
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References

  1. Burch R. 1Platinum Metals Rev., 1978, 22,(2), 57 [Google Scholar]
  2. Bolivar C., Charcosset H., Frety R., Primet M., Tournayan L., Betizeau C., Leclercq G., and Maurel R. 2J. Catalysis, 1975, 39,(2), 249 [Google Scholar]
  3. Bolivar C., Charcosset H., Frety R., Primet M., Tournayan L., Betizeau C., Leclercq G., and Maurel R. 3J. Catalysis, 1976, 45,(2), 163 [Google Scholar]
  4. Betizeau C., Leclercq G., Maurel R., Bolivar C., Charcosset H., Frety R., and Tournayan L. 4J. Catalysis, 1976, 45,(2), 179 [Google Scholar]
  5. Tournayan L., Barbier J., Charcosset H., Frety R., Leclercq C., and Turlier P. 5Thermochim. Acta, in press [Google Scholar]
  6. Blanchard G., Charcosset H., Chenebaux M. T., and Primet M. 6 1978, Louvain-la-Neuve, Belgium, Paper B8
  7. Furhman Z. A., and Parravano G. 7Proc. of the Sixth Int. Congr. on Catalysis, London, July 1976, Chem. Soc., London, 1977, 686 [Google Scholar]
  8. Kubicka H. 8Roczniki Chemii, 1973, 47,(3), 599 [Google Scholar]
  9. Sermon P. A., and Bond G. C. 9For review articles on hydrogen spillover, see Catalysis Rev., 1973, 8, 211; [Google Scholar]
  10. Charcosset H., and Delmon B. Ind. Chim. Beige, 1973, 38,(5), 481 [Google Scholar]
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  • Article Type: Research Article
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