The behavior of a commercial (CE) and homemade (CH) palladium/carbon catalyst in the gas-phase hydrodechlorination of dichloromethane (DCM) has been investigated, at low concentration, in a fixed-bed microreactor, with a view of application to the treatment of residual gas streams. The influence of space time (1.0-6.6 kg h mol(-1)), reaction temperature (423-623 K), and H-2/DCM molar ratio (50-400) was investigated. The catalysts showed high performance, with DCM conversions up to 97% and selectivities to nonchlorinated products of similar to 80%. Modification of the operating conditions highly affects the activity of the catalyst while also showing scarce influence on the selectivity. At equal palladium loadings, the CH catalyst showed higher activity than the CE catalyst; however, the product distribution was fairly similar. This was attributed to a different dispersion and distribution of palladium particles, but a similarity in the nature of the palladium species involved in both types of catalysts.