MULTITUBULAR RADIAL CATALYTIC REACTOR

The invention relates to a reactor (1) delimited by a shell (2) extending along a vertical axis, comprising: · a chamber provided with a reaction zone (10) containing a catalyst bed; · at least one inlet means (3) for a gaseous feedstock; · at least one outlet means (4) for a gaseous effluent produced in the reaction zone (10). The reactor comprises, inside the reaction zone (10), at least two tubes that extend substantially vertically over the height of the reaction zone, the tubes being permeable to a gaseous phase and impermeable to the catalyst, each tube (9) having an upper end (11) in communication with the feedstock inlet means or with the effluent outlet means and a second opposite end (12). The tubes (9, 24) are supported at the upper end by a first plate (14) which is attached to the shell (2), by means of a connection assembly that provides a connection of sliding pivot type type.