Patent ID: 6652815
Filing Date: 2003-11-25
Classification: B01J,C10G

Abstract:
An apparatus for contacting catalyst with an at least partially liquid phase fluid in a contacting conduit, said apparatus comprising:an elongated contacting conduit having an upstream end and a downstream end; a particle inlet defined at said upstream end of the conduit for adding particles to said upstream end; a fluidizing inlet defined at said upstream end of the conduit to inject fluidizing medium and produce a dense particle bed; a swedge section defiling an increase in the outside diameter of the conduit; a band located between the upstream and downstream ends of the conduit defining a discontinuous increase in the inside diameter of the conduit from the upstream to the downstream ends of the conduit and dividing the conduit into upstream and downstream sections, said band being vertically unaligned with said swedge section; a plurality of feed injector nozzles circling the conduit and fixed with respect to the band to provide feed injector tips that extend from an inside wall of the conduit and from the nozzle and all parts of the feed injector nozzles remain outside this projection of a surface projected along the axis of the conduit from the inner circumference of the upstream conduit section at its junction with the band; and a fluid outlet defined by the downstream end of the conduit.