Korean Journal of Chemical Engineering

, Volume 20, Issue 2, pp 262–267

The effects of impeller characteristics in the hydrogenation of aniline on Ru/C catalyst


DOI: 10.1007/BF02697238

Cite this article as:
Cho, HB. & Park, YH. Korean J. Chem. Eng. (2003) 20: 262. doi:10.1007/BF02697238


Effects of impeller characteristics have been studied in the hydrogenation of aniline on Ru/C catalyst. Dual impellers were employed and the experiments were performed at 300 rpm using a lab-scale reactor. Reaction with disk turbines (DT) resulted in the higher cyclohexylamine (CHA) selectivity and higher reaction rate compared to that with pitched blade turbines (PBT). When a combination of PBT and DT impellers was employed, high product selectivity and reaction rate were obtained and the selectivity was maintained constant. Changes in the product selectivity with the impeller geometry were explained in terms of the relative rates of the side reactions depending on the hydrogen concentration in the reaction mixture.

Key words

Impeller CharacteristicsHydrogenation of AnilineReaction RateProduct SelectivityHydrogen Concentration

Copyright information

© Korean Institute of Chemical Engineering 2003

Authors and Affiliations

  1. 1.Division of Material Science and Chemical EngineeringHanyang UniversityKyonggi-DoKorea