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:
May. 19, 1987
Filed:
Sep. 27, 1985
Arthur R Greenwood, Niles, IL (US);
UOP Inc., Des Plaines, IL (US);
Abstract
Apparatus for uniformly distributing a fluid such as a vapor or gas upwardly through a cylindrical bed of a particulate contact material such as a catalyst, without interfering with the catalyst flow, includes an annular chamber which is closed at its top and which surrounds the cylindrical bed. The annular chamber receives fluid near its top and distributes it evenly at its bottom where it passes the fluid downwardly into a region which contains catalyst particles which have descended from the cylindrical bed, said region being defined at its top by the catalyst at the bottom of the aforesaid cylindrical bed and the open bottom end of the annular chamber, at its bottom by the bottom of a vessel containing the apparatus, and at its sides by the sides of the vessel. The distance between the bottom of the cylindrical bed and the bottom of the vessel is preferably at least equal to the radius of the cylindrical bed.