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Uniform flow distributor for trickle bed flow through a bed of solid catalyst particles. The reactants include constituents of a liquid and vapor mixture. A corrugated distributor acts to form pools of the liquid at normal minimum rate of flow and the vapor flows past the liquid pools to form a unif

Uniform flow distributor for trickle bed flow through a bed of solid catalyst particles. The reactants include constituents of a liquid and vapor mixture. A corrugated distributor acts to form pools of the liquid at normal minimum rate of flow and the vapor flows past the liquid pools to form a uniform mixture in the bed of catalyst particles.

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In a catalytic reaction wherein a bed of solid catalyst particles has a liquid and gas mixture flow downward therethrough for said reaction, a procedure for spreading said mixture uniformly throughout said catalyst bed, wherein the improvement comprises: providing means for defining a plurality of p

In a catalytic reaction wherein a bed of solid catalyst particles has a liquid and gas mixture flow downward therethrough for said reaction, a procedure for spreading said mixture uniformly throughout said catalyst bed, wherein the improvement comprises: providing means for defining a plurality of pools of said liquid above said bed of catalyst under minimum rates of flow of said mixture, and permitting flow of said gas through said means at positions located between said pools of liquid whereby said liquid and gas mixture is spread uniformly over said catalyst bed. In a trickle bed flow reactor having a bed of solid catalyst particles for use in lube oil processes or the like, wherein said flow includes both liquid and vapor flowing through said catalyst bed, the improvement comprising means for distributing said liquid uniformly through said catalyst bed, said distributing means comprising tray means having a plurality of depressions defined therein for holding a plurality of liquid pools above said catalyst bed when operated at a predetermined minimum rate of liquid flow, and means for permitting vapor flow directly through said tray means at a plurality of positions located between said liquid pools.