Patent ID: 7182922

Claim:
A device for mixing and distributing a liquid phase and a gas phase inside a vertical reactor having an outer wall, said vertical reactor being upstream of a granular bed or between two successive granular beds, said device comprising: a substantially horizontal plate ( 20 ) covering the entire cross section of the reactor and supporting a plurality of substantially vertical conduits ( 40 ) comprising an upper end ( 43 ) communicating with the portion of the reactor located above the plate ( 20 ) and a lower end ( 21 ) communicating with the portion of the reactor located below the plate ( 20 ) said plurality of substantially vertical conduits defining a zone spaced away from the outer wall of the reactor; said conduits comprising lateral orifices ( 42 ) at different levels disposed along their vertical wall and allowing the gas phase and the liquid phase to be introduced into the conduits at least partially in a separated manner; said device comprising a substantially vertical inner wall ( 30 ) located in the space comprised between the wall of the reactor and the zone occupied by the conduits, and defining with said outer wall an annular zone ( 28 ) for receiving at least the liquid phase from outside the reactor and which communicates with the central portion of the plate ( 20 ) by means defining lower cross sections for flow ( 32 ).