Apparatus for fluid-solid bed processing

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

1989-06-06

1990-08-28

Simone, Timothy F.

Foods and beverages: apparatus

Subjecting food to an enclosed modified atmosphere

In gravity-feed enclosure

99474, 99483, 99516, 34 73, 34165, 422242, 422261, A23F 518, A23F 520, A23F 522

Patent

active

049515616

ABSTRACT:
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 flow 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 vessell through means located above the flow promoting insert.

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