Abstract
Kinetics of the vapor phase hydrogenation of o-chloronitrobenzene (o-CNB) over Pd/Al2O3 catalyst has been studied in a downflow microreactor under atmospheric pressure. Reaction rates have been measured at three different temperatures with respect to the partial pressures of o-CNB and hydrogen. The order of the reaction with respect to o-CNB was 0.53 at 280°C and increased with increasing temperature. However, with respect to hydrogen, a negative order was observed at 280°C, which decreased further with increasing in temperature. The apparent activation energy (Ea), from the Arrhenius plot was found to be 41 kJ/mol. On the basis of kinetic results a surface mechanism is suggested.
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K.R. Kosak, N.Y. Ann: Am. Acad. Sci., 172, 175 (1970).
G.C. Bond D.E. Webster, N.Y. Ann: Am. Acad. Sci., 158, 540 (1969).
H. Greenfield, F.S. Dovell: J. Org. Chem., 32, 3670 (1967).
V. Kratky, M. Kralik, M. Mecarova, M. Stolcova, L. Zalibera, M. Hronec: Appl. Catal., 235, 225 (2002).
B. Coq, A. Tijani, F. Figueras: J. Mol. Catal., 68, 107 (1991).
B. Coq, A. Tijani, F. Figueras: J. Mol. Catal., 71, 317 (1992).
B. Zuo, Y. Wang, Q. Wang, J. Zhang, N. Wu, L. Peng, L. Gui, X. Wang, R. Wang, D. Yu: J. Catal., 222, 493 (2004).
J. Zhang, Y. Wang, Hua Ji, Y. Wei, N. Wu, B. Zuo, Q. Wang: J. Catal., 229, 114 (2005).
X. Yang, H. Liu: Appl. Catal. A, 164, 197 (1997).
M. Liu, W. Yu, H. Liu: J. Mol. Catal. A, 138, 295 (1999).
B. Xu, T. Yamaguchi, K. Tanabe: Mater. Chem. Phys., 19, 291 (1980).
O.M. Kut, T. Buehlmann, F. Mayer, G. Gut: Ind. Eng. Chem. Proc. Res. Dev., 23, 335 (1984).
G. Carturan, G. Facchin, G. Cocco, G. Navazio, G. Gubitosa: J. Catal., 82, 56 (1983).
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Vishwanathan, V., Jayasri, V. & Mahaboob Basha, P. Vapor phase hydrogenation of o-chloronitrobenzene (o-CNB) over alumina supported palladium catalyst — a kinetic study. React Kinet Catal Lett 91, 291–298 (2007). https://doi.org/10.1007/s11144-007-5122-4
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DOI: https://doi.org/10.1007/s11144-007-5122-4