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Volume 36, Issue 3
  • ISSN: 0032-1400


Platinum-tin on alumina catalysts appear to have potential for use during naphtha reforming in processes utilising continuous catalyst regeneration, and without the need for complex activation procedures. To gain a better understanding of the properties that contribute to their effectiveness, the surface and bulk characteristics of these bimetallic catalysts have been studied by a variety of techniques which make more direct measures of the chemical and physical states of the elements present than, for example, temperature-programmed reduction. The data presented demonstrate that catalyst formation by the addition of platinum and tin by co-precipitation leads to alloy formation, but that this does not occur when a support prepared by co-precipitating tin and aluminium oxide is impregnated with chloroplatinic acid.


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