The effect of triethylamine on the hydrodechlorination of chlorophenols on Pd/C at low temperature

The hydrodechlorination (HDC) of chlorophenols on 5 wt.% Pd/C catalyst was investigated at low temperature under ordinary pressure by using triethylamine (Et3N) as a base additive. The inhibition effect of Et3N on the HDC existed obviously and can be efficiently reduced by stepwise addition Of Et3N. For the first time, the high activity of Pd/C for HDC of chlorophenols was observed at 258 K. (C) 2009 Published by Elsevier B.V.