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The hydrodechlorination of tetrachloroethylene in methanol (MeOH) over palladium catalysts on activated carbon (Pd/C) at 20°C and atmospheric pressure was rendered safer by using ethanol (EtOH), isopropanol (IPA) or water-alcohol mixtures as solvents. Adding water to MeOH was better than using EtOH or IPA since it resulted in a faster reaction and better stability of Pd/C, which could also be completely reactivated.

The deactivation kinetics of the Pd/C catalyst used in the catalytic hydrodechlorination of PCE in either MeOH or 50/50 water-MeOH mixture with catalyst and solvent reuse was investigated. Empirical power-expressions were used to approximate the experimental data.