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US 8,506,796 B2Granted
Fluid distribution in radial flow reactors including moving bed reactors
AssigneeUop LLC
InventorJohn J. Senetar
Life of this patent
Estimating the term…
Abstract
Apparatuses and methods for contacting radially flowing fluids with a solid particulate (e.g., catalyst) with reduced tendency to form fluid jets that impinge on the solid particulate, leading to solid attrition and plugging, are described. Representative particle retention devices for use in these apparatuses and methods have flow channels passing therethrough, from a first surface to an opposing second surface that is adjacent to a particle retention zone. Widths of the flow channels at this opposing second surface will exceed their smallest flow channel widths.
Claims19
An apparatus for fluid/solid contacting comprising:
- (a) a vessel;
- and
- (b) a particle retention device disposed in the vessel and comprising a plurality of flow channels passing from a first surface to an opposing second surface adjacent to a particle retention zone, wherein fluid openings of the flow channels at the opposing second surface have widths exceeding smallest flow channel widths at the first surface or within the flow channels, and wherein the flow channels are formed from neighboring particle retention elements, and wherein the particle retention elements have a surface area at the first surface greater than the surface area of the surface area of the particle retention elements at the opposing second surface.
Dependencies are inferred from the claim text.