The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 2008
Filed:
Jan. 21, 2005
Brian W. Hedrick, Rolling Meadows, IL (US);
Richard A. Johnson, Ii, Algonquin, IL (US);
Paul A. Sechrist, South Barrington, IL (US);
Hadjira Iddir, Schaumburg, IL (US);
Brian W. Hedrick, Rolling Meadows, IL (US);
Richard A. Johnson, II, Algonquin, IL (US);
Paul A. Sechrist, South Barrington, IL (US);
Hadjira Iddir, Schaumburg, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A third stage separator vessel includes a diffuser to promote uniform flow among an array of separation cyclones in the vessel. The vessel has an inlet to receive a gas stream containing solid particles, and the diffuser is mounted at the inlet so that at least some of the stream passes through the diffuser. In an embodiment, a gap between the diffuser and the inlet causes some of the gas stream to flow over an outer surface of the diffuser. The diffuser preferably includes a perforated plate mounted across a wide end of a frustoconical portion. The plate has a plurality of openings through which the flow passes. The openings in the plate have various sizes and positions to direct a greater amount of flow through radially outward portions of the plate than from a central portion of the plate.