Hydrogenation of dimethyl-nitrobenzene by Pd/C catalysts

Mansoor Kazemimoghadam¹

1. Faculty of Chemical and Chemical Engineering, Malek Ashtar University of Technology, Tehran, Iran.

Correspondence should be addressed to: mzkazemi@gmail.com.

Section:Research Paper, Product Type: Isroset-Journal
Vol.4 , Issue.5 , pp.1-6, Oct-2017

CrossRef-DOI:   https://doi.org/10.26438/ijsrcs/v4i5.16

Online published on Oct 30, 2017

Copyright © Mansoor Kazemimoghadam . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The kinetics of liquid-phase hydrogenation of dimethyl-nitrobenzene (DN) on 5% Pd/C catalysts were studied in the temperature range of 343–403*K and a pressure range of 4–10 bar H2, using ethanol as the solvent. Dimethyl-aniline (DA) was the only reaction product, generated through the hydrogenation of the Nitro group of dimethyl-nitrobenzene. The effects of hydrogen partial pressure, catalyst loading, dimethyl-nitrobenzene concentration and temperature on the reaction conversion have been reported. Furthermore, an increase in the catalytic activity as the reaction temperature, pressure and weight of catalysts was observed. Conventional Arrhenius behavior was exhibited by catalyst, Pd/C showed activation energies of 614 J/mol. A simple power law model was used for analysis of the reaction kinetic data.

Key-Words / Index Term :
Liquid-phase hydrogenation; Pd/C catalysts; dimethyl-nitrobenzene; dimethyl-aniline; kinetic

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