Patent ID: 7837856

Claim:
A reactor, comprising an interior wall and an exterior wall, for carrying out a continuous oxydehydrogenation of a feed gas stream of saturated hydrocarbons, comprising a free flow cross section and a flow cross section, after premixing with an oxygen-comprising gas stream over a moving catalyst bed, which is introduced in a longitudinal direction of the reactor between two concentric cylindrical holding devices so as to leave a central interior space and an intermediate space between the moving catalyst bed and the interior wall of the reactor to give a reaction gas mixture, wherein the reactor comprises: at least reactor sections which are separated from one another by at least one disk-shaped deflection plate arranged alternately in the central interior space and divided into subregions by annular deflection plates arranged in the intermediate space between the moving catalyst bed and the interior wall of the reactor, in each case with a mixing-in device located upstream of the moving catalyst bed in a flow direction of the reaction gas mixture and corn, the mixing-in device comprising: two or three rows arranged behind one another of tubes which comprise interiors, exteriors, and turbulence generators on said exteriors and constrict the flow cross section for the feed gas stream to from ½ to 1/10 of the free flow cross section, with the oxygen-comprising gas stream being passed through the interiors of the tubes and being injected via openings in the tubes into the feed gas stream; an upstream perforated plate, upstream of the tubes, comprising openings; and a downstream perforated plate, downstream of the tubes, comprising openings.