Apparatus for withdrawing a particulate solid from a packed, non

Details Apparatus for withdrawing a particulate solid from a packed, non Apparatus for withdrawing a particulate solid from a packed, non

1991-12-11

1993-12-14

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Including solid, extended surface, fluid contact reaction...

422219, 422232, 422233, B01J 802, B01J 808, B01J 808

Patent

active

052700186

ABSTRACT:
Apparatus for withdrawing particulate spent catalyst particles from a packed, non-fluidized bed of such particles in contact with a liquid medium within a vessel wherein the apparatus is a withdrawal conduit or pipe which has an inlet that opens within the bottom of the bed and faces generally downwardly so that a first section extends upwardly from the inlet, and a second section extends downwardly, and the spent catalyst particles exits the packed bed through a uniform and continuous flow path opening into a solids recovery vessel whose pressure is controlled to regulate flow of such spent catalyst from the reaction vessel independent of the rate of flow through the withdrawal conduit.

REFERENCES:
patent: 3706536 (1972-12-01), Greenwood et al.
patent: 4968409 (1990-11-01), Smith

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