Apparatus for fluid-solid bed processing

Details Apparatus for fluid-solid bed processing Apparatus for fluid-solid bed processing

B - Operations, Transporting

01

J

23/405

B01J 8/08 (2006.01) A23F 5/20 (2006.01) A23F 5/24 (2006.01) B01D 11/02 (2006.01) B01J 8/18 (2006.01)

Patent

CA 2018312

APPARATUS FOR SUPERCRITICAL FLUID-SOLIDS BED PROCESSING ABSTRACT OF THE DISCLOSURE An apparatus for a supercritical fluid-solid bed process such as for decaffeinating green coffee beans including an elongated cylindrical vessel having a top and bottom. The solids accumulate to form a fluid-solids bed on the bottom of the vessel which includes a central bottom opening, a valve for periodically allowing flow of the solids through the bottom opening and a frustoconical bottom wall. A f low promoting insert having a lower conical wall is provided circumjacent to but spaced from the frustoconical bottom wall. The lower conical wall is provided with a rougher surface than the adjacent frustoconical bottom wall to promote uniform flow of solids. The fluid initially flows through the solids counter-current to the solid flow and is introduced to the vessel through means located above the flow promoting insert. LPATCASE:73

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