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Reaction Kinetics and Catalysis Letters

, Volume 18, Issue 1–2, pp 111–115 | Cite as

Specific activity of ruthenium for hydrogenation and hydrogenolysis of benzene in relation to metal dispersity

  • H. Kubicka
  • J. Okal
Article

Abstract

The specific activity Vsp of ruthenium supported on γ-alumina (0.084–0.84 wt.%, average particle size 1=1–7 nm) has been investigated for hydrogenation and hydrogenolysis of benzene at 80–320°C and compared with that of Ru powder of 1>1400 nm. A decrease of Vsp with increasing Ru dispersity was found for both reactions, the decrease having been more pronounced for hydrogenolysis. The effect is considered to be due mainly to an influence of dispersity of supported metal on the mode and extent of benze chemisorption.

Keywords

Hydrogenation Particle Size Physical Chemistry Benzene Catalysis 
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

Специфическая активность (VSp) рутения, нанесенного на γ-окнсь алюминия (0,084–0,84 вес.%, средний размер частиц 1=1–7 нм), была исседована в гидрировании и гидрогенолие бензола при температуре 80–320°C и сравнива-лись со специфической активностью порошков рутения 1>1400 нм. Уменьшение VSp с увеличением дисперсии рутения было обнаружено для обеих реакций, причем наиболее сильно оно проявлялось гидрогенолизе. Этот эффект, в основ-ном, вызван влиянием дисперсности нанесенного металла на тип и степень хемо-соробции бензола.

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Copyright information

© Akadémiai Kiadó 1981

Authors and Affiliations

  • H. Kubicka
    • 1
  • J. Okal
    • 1
  1. 1.Institute for Low Temperature and Structure ResearchPolish Academy of SciencesWroclowPoland

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