Catalytic hydrodechlorination of 2,4-dichlorophenol on Pd/Rh/C catalysts.
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.
Pozan
Gulin Selda
GS
Istanbul University, Faculty of Engineering, Chemical Engineering Department, Avcilar, 34320 Istanbul, Turkey. gpozan@istanbul.edu.tr
Boz
Ismail
I
D000465:Algorithms; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D002713:Chlorine / Q000737:chemistry; D002733:Chlorophenols / Q000737:chemistry*; D006859:Hydrogen / Q000737:chemistry; D007700:Kinetics; D008956:Models, Chemical; D010165:Palladium / Q000737:chemistry*; D012238:Rhodium / Q000737:chemistry*
D002733:Chlorophenols; D002713:Chlorine; D010165:Palladium; D002244:Carbon; D006859:Hydrogen; D012238:Rhodium; C004762:2,4-dichlorophenol