Device for purifying waste gas in a direct-alcohol fuel cell or direct-alcohol fuel cell stack comprises a region containing a feed line and a removal line separated by a porous layer, and a catalyst on the surface of the porous layer

摘要

Device for purifying waste gas comprises: a feed line (1) for introducing an oxidant into a cathode chamber of a fuel cell; a removal line (2) for removing waste gas from the fuel cell; a region containing the feed line and the removal line separated by a porous layer (3); and a catalyst (4) applied on the surface of the porous layer directed toward the removal line. An Independent claim is also included for a process for operating a direct-alcohol fuel cell or direct-alcohol fuel cell stack using the above device. Preferred Features: The porous layer is formed as a water-permeable membrane. The porous layer is oxygen-permeable. The catalyst is used in the conversion of methanol.