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Reaction Kinetics and Catalysis Letters

, Volume 36, Issue 1, pp 39–46 | Cite as

Coked reforming catalysts: Self-regeneration by residual hydrogen

  • F. Frusteri
  • P. Tsiakaras
  • A. Parmaliana
  • A. Mezzapica
  • N. Giordano
Article

Abstract

The deactivation and subsequent self-regeneration of several Pt/γ−Al2O3/honeycomb reforming catalysts have been investigated. Catalytic activity in the dehydrogenation of methylcyclohexane (MCH), taken as reaction model, has been evaluated at 400 °C in a continuous flow microreactor. The determining role of surface chlorine during the H2 self-regeneration of catalysts is discussed. A catalyst with ca. 0.5% C1 shows complete self-regeneration. A regeneration mechanism, involving the spillover of residual hydrogen, is proposed.

Keywords

Hydrogen Physical Chemistry Al2O3 Catalysis Chlorine 
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.

Abstract

Исследовали дезактивацию и последующее саморегенерирование некоторых Pt/γ−Al2O3 катализаторов риформинга со структурой пчелинных сотен. Каталитическая активность в дегидрировании метилциклогексана, выбранного в качестве реакционной модели, была определена при 400°C и в проточном микрореакторе. Обсуждается решающая роль поверхностного хлора при водородном саморегенерировании катализатора. Катализатор с прибл. 0.5% Cl проявляет полное саморегенерирование. Предлагают механизм регенерирования, включающий в себя спиловер остаточного водорода.

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Copyright information

© Akadémiai Kiadó 1988

Authors and Affiliations

  • F. Frusteri
    • 1
  • P. Tsiakaras
    • 1
  • A. Parmaliana
    • 1
  • A. Mezzapica
    • 2
  • N. Giordano
    • 2
  1. 1.Istituto di Chimica IndustrialeUniversità di MessinaMessinaItaly
  2. 2.Istituto CNR-TAE, Salita S. Lucia sopra Contesse, 39MessinaItaly

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