Patent ID: 6431202
Filing Date: 2002-08-13
Classification: B01D,F16K,Y10T

Abstract:
A multiport rotary valve for directing fluid streams comprising:(a) a circular stationary head having at least one primary port for connection with a fluid stream and at least one secondary port; at least one first circular channel formed in said stationary head associated with a primary port and at least one concentric second channel formed in said stationary head associated with a secondary port; (b) a circular rotatable head having at least one radial chamber, said radial chamber having first and second spaced apart ports for connection between a first circular channel and a secondary port, said rotatable head forming a fluid seal with said stationary head; and (c) an indexable drive for rotating said rotatable head to interconnect selected primary ports with selected secondary ports by use of said radial chamber; wherein said fluid-solid contacting apparatus comprises separation zones arranged in series such that an exit end of one separation zone is connected to an entrance end of another separation zone next in a direction of fluid flow in said series and a fluid moving means to conduct said fluid continuously and endlessly within said series.