Palladium catalysis hydrodechlorination

Catalyst particles generally consist of a metal deposited onto the surface of a support and are denoted by metal/support, e.g. Pd/C indicates palladium metal on a carbon support. Among the metals used for catalysis, Pd is often found to be the most active metal. (Augustine 1965) For example, in the aqueous hydrodechlorination of 1,1,2-trichloroethane, Pd catalysts achieved significantly more conversion than Pt or Rh catalysts. (Kovenklioglu et al. 1992) Catalyst supports can vary in shape, size, porosity and surface area typical materials include carbon, alumina, silica and zeolites. 

Figure 5. Transformation pathway of lindane to benzene. Reprinted from Applied Catalysis B Environmental, Vol. 18, Schtlth and Reinhard, Hydrodechlorination and Hydrogenation of Aromatic Compounds over Palladium on Alumina in Hydrogen-Saturated Water, pp. 219, Copyright 1998, with permission from Elsevier Science.

Wiener, H., Sasson, Y., and Blum, J. (1986). Palladium-Catalyzed Decomposition of Aqueous Alkali Metal Formate Solutions. Journal of Molecular Catalysis, 35, 277-284. Yu, G. (1991). Hydrodechlorination ofTrichloroethane and Trichloroethylene in a Trickle-Bed Reactor, Master of Engineering Thesis, Stevens Institute ofTechnology, Castle Point, Hoboken, NJ. 

Berry, F.J., et ah. Microwave heating during catalyst preparation Influence on the hydrodechlorination activity of alumina-supported palladium-iron bimetalhc catalysts. Applied Catalysis A General, 204(2) pp. 191-201, 2000. 

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