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CA2380845A1 - Procede pour detecter et corriger la defluidisation et la canalisation locales dans des reacteurs a lit fluidise destines a la polymerisation - Google Patents

Procede pour detecter et corriger la defluidisation et la canalisation locales dans des reacteurs a lit fluidise destines a la polymerisation Download PDF

Info

Publication number
CA2380845A1
CA2380845A1 CA002380845A CA2380845A CA2380845A1 CA 2380845 A1 CA2380845 A1 CA 2380845A1 CA 002380845 A CA002380845 A CA 002380845A CA 2380845 A CA2380845 A CA 2380845A CA 2380845 A1 CA2380845 A1 CA 2380845A1
Authority
CA
Canada
Prior art keywords
fluidized
bulk density
reactor
bed
channeling
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002380845A
Other languages
English (en)
Inventor
Kiu Hee Lee
Ivan Jeremy Hartley
Ping Cai
Lance Lyle Jocobsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Carbide Chemicals and Plastics Technology LLC
Original Assignee
Individual
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
Priority claimed from US09/571,528 external-priority patent/US6384157B1/en
Application filed by Individual filed Critical Individual
Publication of CA2380845A1 publication Critical patent/CA2380845A1/fr
Abandoned legal-status Critical Current

Links

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
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1809—Controlling processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • 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
    • B01J2208/00008—Controlling the process
    • B01J2208/00584—Controlling the density
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/04—Monomers containing three or four carbon atoms
    • C08F210/06—Propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2400/00—Characteristics for processes of polymerization
    • C08F2400/02—Control or adjustment of polymerization parameters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Polymerisation Methods In General (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

L'invention concerne un procédé pour surveiller, détecter et corriger la défluidisation et la canalisation locales dans des réacteurs à lit fluidisé destinés à la polymérisation de polymères oléfiniques et/ou dioléfiniques. La détection se fait de préférence (i) par la comparaison en continu et/ou par intermittence d'un signal, qui est fonction d'une densité de fluidisation en vrac mesurée au moment présent, et d'un signal qui est fonction de la densité moyenne de fluidisation en vrac sur une période donnée.
CA002380845A 1999-08-03 2000-08-02 Procede pour detecter et corriger la defluidisation et la canalisation locales dans des reacteurs a lit fluidise destines a la polymerisation Abandoned CA2380845A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US14684299P 1999-08-03 1999-08-03
US60/146,842 1999-08-03
US09/571,528 US6384157B1 (en) 2000-05-16 2000-05-16 Method of detecting and correcting local defluidization and channeling in fluidized-bed reactors for polymerization
US09/571,528 2000-05-16
PCT/US2000/021092 WO2001009196A1 (fr) 1999-08-03 2000-08-02 Procede pour detecter et corriger la defluidisation et la canalisation locales dans des reacteurs a lit fluidise destines a la polymerisation

Publications (1)

Publication Number Publication Date
CA2380845A1 true CA2380845A1 (fr) 2001-02-08

Family

ID=26844348

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002380845A Abandoned CA2380845A1 (fr) 1999-08-03 2000-08-02 Procede pour detecter et corriger la defluidisation et la canalisation locales dans des reacteurs a lit fluidise destines a la polymerisation

Country Status (6)

Country Link
EP (1) EP1218416A1 (fr)
JP (1) JP2003506495A (fr)
AU (1) AU6512100A (fr)
BR (1) BR0012952A (fr)
CA (1) CA2380845A1 (fr)
WO (1) WO2001009196A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7226789B2 (en) * 2001-12-17 2007-06-05 Unication Technolofies, Llc Method of applying non-linear dynamics to control a gas-phase polyethylene reactor operability
US7846736B2 (en) 2001-12-17 2010-12-07 Univation Technologies, Llc Method for polymerization reaction monitoring with determination of entropy of monitored data
EP1563903A1 (fr) * 2004-02-13 2005-08-17 Total Petrochemicals Research Feluy Gestion du gonflement dans un réacteur en boucle
AR048828A1 (es) * 2004-04-13 2006-05-31 Union Carbide Chem Plastic Uso de un fraccionamiento instantaneo para mejorar el control del reactor
US7947797B2 (en) 2005-09-14 2011-05-24 Univation Technologies, Llc Method for operating a gas-phase reactor at or near maximum production rates while controlling polymer stickiness
US20070270558A1 (en) * 2006-05-16 2007-11-22 Paul Keith Scherrer Pulsing olefin polymerization fluidized-bed reactors
PL2185609T3 (pl) 2007-08-24 2021-06-14 W.R. Grace & Co. - Conn. Proces polimeryzacji w fazie gazowej
MX2011001970A (es) 2008-08-21 2011-08-12 Dow Global Technologies Llc Composicion de catalizador con agente de control de selectividad mezclado y metodo de polimerizacion que la usa.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4543637A (en) * 1982-07-16 1985-09-24 Phillips Petroleum Company Generation of a set point for process control
FR2594548B1 (fr) * 1986-02-19 1989-05-19 Bp Chimie Sa Procede et dispositif pour detecter des anomalies dans un lit fluidise et application aux reacteurs a lit fluidise de polymerisation d'alphaolefines en phase gazeuse
FR2625506B1 (fr) * 1987-12-31 1992-02-21 Bp Chimie Sa Procede et appareillage de fabrication de polymeres controlee a l'aide d'un systeme de regulation comprenant un spectrophotometre infrarouge
CA2112505A1 (fr) * 1992-12-30 1994-07-01 Masahiro Niwa Methode pour la polymerisation d'olefines en phase gazeuse
EP0699212A1 (fr) * 1993-04-26 1996-03-06 Exxon Chemical Patents Inc. Procede de polymerisation de monomeres dans des lits fluidises
JP3056916B2 (ja) * 1993-06-29 2000-06-26 ホソカワミクロン株式会社 流動層利用の造粒制御装置

Also Published As

Publication number Publication date
JP2003506495A (ja) 2003-02-18
BR0012952A (pt) 2002-04-30
EP1218416A1 (fr) 2002-07-03
AU6512100A (en) 2001-02-19
WO2001009196A1 (fr) 2001-02-08

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Legal Events

Date Code Title Description
FZDE Discontinued