BR0012952A - Método de detectar e corrigir desfluidificação local e canalização em reatores de leito fluidificado para polimerização - Google Patents

Método de detectar e corrigir desfluidificação local e canalização em reatores de leito fluidificado para polimerização

Info

Publication number
BR0012952A
BR0012952A BR0012952-6A BR0012952A BR0012952A BR 0012952 A BR0012952 A BR 0012952A BR 0012952 A BR0012952 A BR 0012952A BR 0012952 A BR0012952 A BR 0012952A
Authority
BR
Brazil
Prior art keywords
defluidification
channeling
polymerization
fluidized bed
bed reactors
Prior art date
Application number
BR0012952-6A
Other languages
English (en)
Inventor
Ping Cai
Ivan Jeremy Hartley
Kiu Hee Lee
Lance Lyle Jocobsen
Original Assignee
Union Carbide Chem Plastic
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 Union Carbide Chem Plastic filed Critical Union Carbide Chem Plastic
Publication of BR0012952A publication Critical patent/BR0012952A/pt

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

"MéTODO DE DETECTAR E CORRIGIR DESFLUIDIFICAçãO LOCAL E CANALIZAçãO EM REATORES DE LEITO FLUIDIFICADO PARA POLIMERIZAçãO". é fornecido um método para monitorar, detectar e corrigir desfluidificação local e canalização em reatores de leito fluidificado para polimerização de polímeros de olefina e/ou diolefina. A detecção é preferivelmente conduzida por (i) comparar contínua e/ou intermitentemente um sinal que é uma função da densidade de volume de fluidificação atualmente medida com um sinal que é uma função da linha de base em média de tempo de densidade de volume fluidificado.
BR0012952-6A 1999-08-03 2000-08-02 Método de detectar e corrigir desfluidificação local e canalização em reatores de leito fluidificado para polimerização BR0012952A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US14684299P 1999-08-03 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
PCT/US2000/021092 WO2001009196A1 (en) 1999-08-03 2000-08-02 Method of detecting and correcting local defluidization and channeling in fluidized-bed reactors for polymerization

Publications (1)

Publication Number Publication Date
BR0012952A true BR0012952A (pt) 2002-04-30

Family

ID=26844348

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0012952-6A BR0012952A (pt) 1999-08-03 2000-08-02 Método de detectar e corrigir desfluidificação local e canalização em reatores de leito fluidificado para polimerização

Country Status (6)

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

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 (en) * 2004-02-13 2005-08-17 Total Petrochemicals Research Feluy Swell control in slurry loop reactor
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
US10322394B2 (en) 2007-08-24 2019-06-18 W. R. Grace & Co.-Conn. Catalyst composition with mixed selectivity control agent and method
ES2711342T3 (es) 2007-08-24 2019-05-03 Grace W R & Co Sistema catalítico autolimitante con proporción de aluminio con respecto a SCA controlada

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
EP0605002B1 (en) * 1992-12-30 2000-08-02 Nippon Petrochemicals Co., Ltd. Method of vapor phase polymerization of olefins
JP3077940B2 (ja) * 1993-04-26 2000-08-21 エクソン・ケミカル・パテンツ・インク 流動層重合法のための安定な操作条件を決定する方法
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
WO2001009196A1 (en) 2001-02-08
CA2380845A1 (en) 2001-02-08
AU6512100A (en) 2001-02-19
EP1218416A1 (en) 2002-07-03
JP2003506495A (ja) 2003-02-18

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]