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:
Dec. 27, 1994
Filed:
Nov. 15, 1993
Leonce F Castagnos, Jr, The Woodlands, TX (US);
Harold C Kaufman, Houston, TX (US);
Texaco Inc., White Plains, NY (US);
Abstract
A riser cyclone separator is positioned external to a containment vessel. The riser cyclone separator discharges separated catalyst to a catalyst stripper and separated vapor to a plenum, both positioned internal to the containment vessel. Means is provided for withdrawing stripping gas from the catalyst stripper and passing it via the riser cyclone separator to the plenum. The riser cyclone separator is inherently pressure stable relative to the containment vessel. The invention is particularly useful for retrofitting a direct-connected riser cyclone separator to a preexisting containment vessel with space limitations.