Abstract: A reactor for catalytically processing gaseous fluids including fluid-path forming elements spaced from each other and forming a plurality of adjacent first and second channels through which fluid flows in opposite directions, with each of the first and second channels having an inlet region and an outlet region where at least the inlet region of the first channel and the outlet region of the second channel are without a catalyst and where each of the first and second channels have one region other than its inlet and outlet regions provided with a catalyst, with the inlet region of the first channel and the outlet region of the second channel providing for heat exchange between the first and second channels.

Abstract: A reactor for catalytically processing gaseous fluids. The invention relates to a reactor for catalytically processing gaseous fluids wherein the catalytic reaction is accompanied by a heat exchange, stationary catalysts are used, with the fluid flowing through the reactor in one direction. To this end, the fluid path-forming structures (10) are provided in the reactor housing, the structures (10) form channels (19), and the structures (10) have at least one region (11) provided with a catalyst (12), preferably coated therewith.