(19)
(11) EP 0 758 014 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.04.1997 Bulletin 1997/14

(43) Date of publication A2:
12.02.1997 Bulletin 1997/07

(21) Application number: 96112454.2

(22) Date of filing: 01.08.1996
(51) International Patent Classification (IPC)6: C10G 11/18
(84) Designated Contracting States:
DE ES FR GB NL

(30) Priority: 09.08.1995 US 512870

(71) Applicant: The M.W. Kellogg Company
Houston, Texas 77002-7990 (US)

(72) Inventors:
  • Niccum, Phillip K.
    Houston, Texas 77005 (US)
  • Glasgow, Philip E.
    Houston, Texas 77072 (US)

(74) Representative: Weiss, Wolfgang, Dipl.-Chem. Dr. et al
Patentanwälte Weickmann & Partner, Kopernikusstrasse 9
81679 München
81679 München (DE)

   


(54) External, pressurized closed-cyclone apparatus for FCC unit


(57) A pressurized closed-cyclone catalyst disengaging apparatus for use in an FCC unit. A closed-cyclone apparatus of the present invention independently pressurized in the absence of a disengager vessel has a line for venting stripping steam and hydrocarbon vapor from a catalyst stripping stage to a catalyst disengaging stage for rapidly disengaging catalyst particles from an FCC reaction hydrocarbon effluent.






Search report