Catalytic reactor

A catalytic reactor comprising:

• a shell that extends about a reactor center axis;
• and
• at least one reactor module that includes
• a gas distribution chamber connected to a shell-side gas feed, wherein the shell-side gas feed either
• opens into the gas distribution chamber on a shell side, wherein a height of the gas distribution chamber, which is parallel to the reactor center axis, reduces towards the reactor center axis starting from a mouth of the shell-side gas feed, or
• is connected to a pipe length that extends towards the reactor center axis and opens into the gas distribution chamber in a region of the reactor center axis, wherein the height of the gas distribution chamber reduces towards the shell starting from the pipe length that extends towards the reactor center axis and opens into the gas distribution chamber in the region of the reactor center axis,
• a gas collection chamber connected to a shell-side gas discharge, wherein the shell-side gas discharge either
• opens into the gas collection chamber on a shell side, wherein a height of the gas collection chamber, which is parallel to the reactor center axis, reduces towards the reactor center axis starting from a mouth of the shell-side gas discharge, or
• is connected to a pipe length that extends towards the reactor center axis and open into the gas collection chamber in the region of the reactor center axis, wherein the height of the gas collection chamber reduces towards the shell starting from the pipe length that extends towards the reactor center axis and opens into the gas collection chamber in the region of the reactor center axis, and
• a catalyst bed that is disposed between the gas distribution chamber and the gas collection chamber and extends transversely to the reactor center axis, wherein the gas distribution chamber and the gas collection chamber are each bounded by the catalyst bed and an associated reactor wall,
• wherein
• the shell-side gas feed opens into the gas distribution chamber on the shell side, wherein the at least one reactor module is configured such that the heights of the gas distribution chamber and of the gas collection chamber, as determined parallel to the reactor center axis, reduce towards the reactor center axis starting from the shell
• or wherein
• the reactor walls are disposed on both sides of the catalyst bed and have a concave shape, starting from the reactor center axis, relative to the catalyst bed, wherein the shell-side gas feed is connected to the pipe length that extends towards the reactor center axis and opens into the gas distribution chamber in the region of the reactor center axis and the shell-side gas discharge is connected to the pipe length that extends towards the reactor center axis and open into the gas collection chamber in the region of the reactor center axis, and wherein the heights of the gas distribution chamber and of the gas collection chamber, as determined parallel to the reactor center axis, reduce towards the shell starting from the reactor center axis wherein the reactor walls are disposed on both sides of the catalyst bed and have a convex shape, starting from the reactor center axis, relative to the catalyst bed and wherein the pipe lengths are disposed within the catalyst bed.