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US 11,298,669 B2Granted
Scale collection device for downflow reactors
AssigneeUop LLC
InventorsZhanping Xu, Steven J. Lesniak, Robert L. Bunting, Jr.
Life of this patent
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Abstract
The invention involves a scale collection device that is located within downflow reactor head for removing solids from feed streams to increase reactor operating cycle time without impact on effective reactor space for catalyst loading. More particularly, a filtering zone is located in an upper portion of a reactor vessel above a rough liquid distribution tray and a distribution tray.
Claims22
A reactor comprising an upper portion and a lower portion wherein the upper portion comprises:
- a rough liquid distribution tray comprising a cylindrical side wall coupled to the rough liquid distribution tray, wherein the cylindrical side wall extends upward to a reactor top head;
- a scale collection device comprising a filter defined by the cylindrical side wall and a grating, the grating supported by a plurality of spacers above the rough liquid distribution tray;
- and
- a vapor-liquid distribution tray located below the rough liquid distribution tray.
1 more element
An apparatus comprising an upper portion and a lower portion wherein the upper portion comprising:
- a rough liquid distribution tray comprising a cylindrical side wall coupled to the rough liquid distribution tray, wherein the cylindrical side wall extends upward to a reactor top head, wherein a top part of the cylindrical side wall contains openings, and wherein the cylindrical side wall comprises an outer edge of the rough liquid distribution tray;
- a scale collection device comprising a filter defined by the cylindrical side wall and a grating, the grating supported by a spacer above the rough liquid distribution tray;
- and
- a vapor-liquid distribution tray located below the rough liquid distribution tray.
1 more element
Dependencies are inferred from the claim text.