WO2013003091A3 - Process to reduce catalyst fluidization in regeneration units - Google Patents

Process to reduce catalyst fluidization in regeneration units Download PDF

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Publication number
WO2013003091A3
WO2013003091A3 PCT/US2012/042931 US2012042931W WO2013003091A3 WO 2013003091 A3 WO2013003091 A3 WO 2013003091A3 US 2012042931 W US2012042931 W US 2012042931W WO 2013003091 A3 WO2013003091 A3 WO 2013003091A3
Authority
WO
WIPO (PCT)
Prior art keywords
reduction
catalyst
catalyst fluidization
fluidization
reduce catalyst
Prior art date
Application number
PCT/US2012/042931
Other languages
French (fr)
Other versions
WO2013003091A2 (en
Inventor
Ka L. LOK
Mary Jo WIER
Pengfei Chen
Alexander V. SABITOV
Original Assignee
Uop Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uop Llc filed Critical Uop Llc
Publication of WO2013003091A2 publication Critical patent/WO2013003091A2/en
Publication of WO2013003091A3 publication Critical patent/WO2013003091A3/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/0242—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid flow within the bed being predominantly vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
    • B01J8/0085—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction promoting uninterrupted fluid flow, e.g. by filtering out particles in front of the catalyst layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00743—Feeding or discharging of solids
    • B01J2208/00761—Discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00823—Mixing elements
    • B01J2208/00831—Stationary elements
    • B01J2208/0084—Stationary elements inside the bed, e.g. baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00823—Mixing elements
    • B01J2208/00831—Stationary elements
    • B01J2208/00849—Stationary elements outside the bed, e.g. baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00002—Chemical plants
    • B01J2219/00018—Construction aspects
    • B01J2219/00024—Revamping, retrofitting or modernisation of existing plants

Abstract

The invention involves a system and a process that reduces the potential for catalyst fluidization in a reduction vessel of a continuous catalyst regeneration system. The gas exit area from the catalyst reduction zone is increased by ventilating the cylindrical baffle of the upper reduction zone. This provides an increased exit cross-sectional area for the upper reduction gas to escape and reduce the overall exit velocity of the combined upper and lower reduction gases and reduces the potential for catalyst fluidization.
PCT/US2012/042931 2011-06-30 2012-06-18 Process to reduce catalyst fluidization in regeneration units WO2013003091A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161502944P 2011-06-30 2011-06-30
US201161502940P 2011-06-30 2011-06-30
US61/502,944 2011-06-30
US61/502,940 2011-06-30

Publications (2)

Publication Number Publication Date
WO2013003091A2 WO2013003091A2 (en) 2013-01-03
WO2013003091A3 true WO2013003091A3 (en) 2013-05-02

Family

ID=47424749

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/042931 WO2013003091A2 (en) 2011-06-30 2012-06-18 Process to reduce catalyst fluidization in regeneration units

Country Status (1)

Country Link
WO (1) WO2013003091A2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471063A (en) * 1982-10-21 1984-09-11 Ashland Oil, Inc. Method and apparatus arrangement for regenerating fluid particles of catalyst
US20070060782A1 (en) * 2002-11-12 2007-03-15 Ablin David W Apparatus and Process for Reacting Over Two Catalyst Beds
US20090110615A1 (en) * 2007-10-29 2009-04-30 Vetter Michael J Segmented Outer Catalyst Retention Screen for Stacked Radial Flow Reactors
US20100075829A1 (en) * 2008-09-25 2010-03-25 Lambin Jason P Stripping Process with Multi-Sloped Baffles
US20100175553A1 (en) * 2006-12-13 2010-07-15 I F P Novel gas/solid separation system for the regenerators of fluid catalytic cracking units
US7799287B2 (en) * 2007-12-05 2010-09-21 Uop Llc Apparatus and process for regenerating catalyst
US20110319691A1 (en) * 2010-06-28 2011-12-29 Uop Llc Reduced fluidization of solid particles in radial flow fluid/solid contacting

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471063A (en) * 1982-10-21 1984-09-11 Ashland Oil, Inc. Method and apparatus arrangement for regenerating fluid particles of catalyst
US20070060782A1 (en) * 2002-11-12 2007-03-15 Ablin David W Apparatus and Process for Reacting Over Two Catalyst Beds
US20100175553A1 (en) * 2006-12-13 2010-07-15 I F P Novel gas/solid separation system for the regenerators of fluid catalytic cracking units
US20090110615A1 (en) * 2007-10-29 2009-04-30 Vetter Michael J Segmented Outer Catalyst Retention Screen for Stacked Radial Flow Reactors
US7799287B2 (en) * 2007-12-05 2010-09-21 Uop Llc Apparatus and process for regenerating catalyst
US20100075829A1 (en) * 2008-09-25 2010-03-25 Lambin Jason P Stripping Process with Multi-Sloped Baffles
US20110319691A1 (en) * 2010-06-28 2011-12-29 Uop Llc Reduced fluidization of solid particles in radial flow fluid/solid contacting

Also Published As

Publication number Publication date
WO2013003091A2 (en) 2013-01-03

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