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Published on: August 23, 2018
Catalytic hydrodechlorination of 2,4-dichlorophenol on Pd/Rh/C catalysts
Gulin Selda Pozan1, Ismail Boz
1Istanbul University, Faculty of Engineering, Chemical Engineering Department, Avcilar, 34320 Istanbul, Turkey. gpozan@istanbul.edu.tr
Abstract:
Catalytic hydrodechlorination of 2,4-dichlorophenol was studied over 0.97% Pd/C, 0.98% Rh/C and 0.8% Pd-0.19% Rh/C catalysts. The catalysts were prepared by incipient wetness impregnation of support and characterized by BET surface area, temperature programmed reduction (TPR) and X-ray diffraction (XRD). The 0.97% Pd/C catalyst, which had the largest crystallite size, was the most active and selective towards the formation of 2- and 4-chlorophenols among three catalysts in liquid phase. Hydrodechlorination activity of carbon-supported catalysts were in the order of Pd/C>Pd/Rh/C>Rh/C. The kinetic equation explained experimental data well and kinetic parameters of three catalysts were provided and discussed.
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