Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 136, Issue 3, Pages 917-921Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2006.01.030
Keywords
hydrodechlorination; 2,4-dichlorophenol; Pd/C; Pd/Rh/C; Rh/C
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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. (c) 2006 Elsevier B.V. All rights reserved.
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