Catalyst: KUB-3



The KUB-3 catalyst is designed for the hydrogenation of benzene to cyclohexane, i.e. the first stage of the synthesis of cyclohexanol that is the semi-product in the caprolactam production process. KUB-3 can also be used in other processes of hydrogenation.



KUB-3 is a nickel-based catalyst of a co-precipitated type. The main component is pre-reduced nickel-alumina system, containing dispersed metallic nickel. Nickel is the active component of the catalyst, alumina acts as a structural promoter.


Chemical composition Ni/NiO/Al2O3
Form balls
Diameter [mm] 4 ÷ 6



  • high and stable activity and selectivity
  • high mechanical strength
  • high mechanical strength
  • low and stable pressure drop

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