WO2009014682A3 - Method for monitoring a polymerization reaction - Google Patents
Method for monitoring a polymerization reaction Download PDFInfo
- Publication number
- WO2009014682A3 WO2009014682A3 PCT/US2008/008871 US2008008871W WO2009014682A3 WO 2009014682 A3 WO2009014682 A3 WO 2009014682A3 US 2008008871 W US2008008871 W US 2008008871W WO 2009014682 A3 WO2009014682 A3 WO 2009014682A3
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- WIPO (PCT)
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- reaction
- frequency
- parameter data
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- monitoring
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- 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
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- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0033—Optimalisation processes, i.e. processes with adaptive control systems
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- 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
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- 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
- B01J2208/00017—Controlling the temperature
- B01J2208/00026—Controlling or regulating the heat exchange system
- B01J2208/00035—Controlling or regulating the heat exchange system involving measured parameters
- B01J2208/00044—Temperature measurement
- B01J2208/00061—Temperature measurement of the reactants
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- 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
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00176—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles outside the reactor
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- 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
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00194—Tubes
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- 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
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00212—Plates; Jackets; Cylinders
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- 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
- B01J2208/0061—Controlling the level
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- 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
- B01J2208/00619—Controlling the weight
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00193—Sensing a parameter
- B01J2219/00195—Sensing a parameter of the reaction system
- B01J2219/00198—Sensing a parameter of the reaction system at the reactor inlet
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00193—Sensing a parameter
- B01J2219/00195—Sensing a parameter of the reaction system
- B01J2219/002—Sensing a parameter of the reaction system inside the reactor
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00193—Sensing a parameter
- B01J2219/00195—Sensing a parameter of the reaction system
- B01J2219/00202—Sensing a parameter of the reaction system at the reactor outlet
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00209—Control algorithm transforming a sensed parameter
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00211—Control algorithm comparing a sensed parameter with a pre-set value
- B01J2219/00216—Parameter value calculated by equations
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00211—Control algorithm comparing a sensed parameter with a pre-set value
- B01J2219/00218—Dynamically variable (in-line) parameter values
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00222—Control algorithm taking actions
- B01J2219/00225—Control algorithm taking actions stopping the system or generating an alarm
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00222—Control algorithm taking actions
- B01J2219/00227—Control algorithm taking actions modifying the operating conditions
- B01J2219/00229—Control algorithm taking actions modifying the operating conditions of the reaction system
- B01J2219/00231—Control algorithm taking actions modifying the operating conditions of the reaction system at the reactor inlet
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00222—Control algorithm taking actions
- B01J2219/00227—Control algorithm taking actions modifying the operating conditions
- B01J2219/00229—Control algorithm taking actions modifying the operating conditions of the reaction system
- B01J2219/00234—Control algorithm taking actions modifying the operating conditions of the reaction system inside the reactor
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00222—Control algorithm taking actions
- B01J2219/00227—Control algorithm taking actions modifying the operating conditions
- B01J2219/00238—Control algorithm taking actions modifying the operating conditions of the heat exchange system
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- 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
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00243—Mathematical modelling
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- 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
Abstract
In some embodiments, a method of monitoring a resin-producing polymerization reaction in a fluid bed reactor system to generate reaction parameter data in on-line fashion, wavelet transforming the reaction parameter data to generate frequency-domain data or determining kurtosis of each of at least two subsets of the reaction parameter data, and optionally also determining from the frequency-domain data or kurtosis values an indication of at least one of degree of resin stickiness, an approach to or imminence of resin stickiness, and an approach to or imminence of an unsafe or undesired reactor operating condition that can result in sheeting or chunking. Optionally also, the reaction is controlled in response to the kurtosis values or frequency-domain data, for example, in an effort to prevent the occurrence of sheeting or another discontinuity event or to maintain the reactor in a stable, non-sticking condition.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96177007P | 2007-07-24 | 2007-07-24 | |
US60/961,770 | 2007-07-24 |
Publications (2)
Publication Number | Publication Date |
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WO2009014682A2 WO2009014682A2 (en) | 2009-01-29 |
WO2009014682A3 true WO2009014682A3 (en) | 2009-09-24 |
Family
ID=40282026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2008/008871 WO2009014682A2 (en) | 2007-07-24 | 2008-07-22 | Method for monitoring a polymerization reaction |
Country Status (1)
Country | Link |
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WO (1) | WO2009014682A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106647597A (en) * | 2016-10-11 | 2017-05-10 | 南京工业大学 | PLC multi-segment temperature control method for fluidized bed catalytic combustion electric heating furnace |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2427504B1 (en) | 2009-05-08 | 2013-04-03 | Univation Technologies, LLC | Systems and methods for monitoring a polymerization reaction |
US7910668B2 (en) | 2009-05-08 | 2011-03-22 | Univation Technologies, Llc | Method for on-line determination of degree or onset of resin stickiness using acoustic data |
CN102191069A (en) * | 2010-03-19 | 2011-09-21 | 北京林业大学 | Monitoring system for fluidized bed type biomass quick pyrolysis equipment |
US9452403B2 (en) * | 2012-10-19 | 2016-09-27 | Sunedison, Inc. | Using wavelet decomposition to determine the fluidization quality in a fluidized bed reactor |
WO2014106039A2 (en) | 2012-12-28 | 2014-07-03 | Exxonmobil Research And Engineering Company | Methods for processing and interpreting signals from static and acoustic probes in fluidized bed reactor systems |
US9360453B2 (en) | 2012-12-28 | 2016-06-07 | Exxonmobil Research And Engineering Company | Instruments for monitoring electrostatic phenomena in reactors |
WO2014106078A2 (en) | 2012-12-28 | 2014-07-03 | Exxonmobil Research And Engineering Company | Instruments for monitoring electrostatic phenomena in reactors |
DE102013103689A1 (en) * | 2013-02-26 | 2014-08-28 | Franz Binzer | Device and method for thermal waste recycling |
CN105548366B (en) * | 2015-12-05 | 2017-12-29 | 浙江大学 | A kind of assay method of polyethylene fluid bed bubble heat transfer coefficient |
WO2021011768A1 (en) * | 2019-07-18 | 2021-01-21 | Exxonmobil Research And Engineering Company | Multi-sensory probes and systems for monitoring fluidization |
WO2021113040A1 (en) * | 2019-12-05 | 2021-06-10 | Exxonmobil Research And Engineering Company | Fluidization measurement system |
Citations (5)
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---|---|---|---|---|
US6384157B1 (en) * | 2000-05-16 | 2002-05-07 | Union Carbide Chemicals & Plastics Technology Corporation | Method of detecting and correcting local defluidization and channeling in fluidized-bed reactors for polymerization |
WO2003051929A1 (en) * | 2001-12-17 | 2003-06-26 | Univation Technologies Llc | Method of applying non-linear dynamics to control a gas-phase polyethylene reactor operability |
US20040083028A1 (en) * | 2002-10-28 | 2004-04-29 | Ramaswamy Vaidyanathan | Process control using on-line instrumentation and process models |
US6826513B1 (en) * | 2002-11-29 | 2004-11-30 | Council Of Scientific & Industrial Research | Method and apparatus for online identification of safe operation and advance detection of unsafe operation of a system or process |
WO2006107437A1 (en) * | 2005-03-31 | 2006-10-12 | Univation Technologies, Llc | Method and system for assessing reactor fluidization quality and operability from frequency spectrum of temperature data |
-
2008
- 2008-07-22 WO PCT/US2008/008871 patent/WO2009014682A2/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6384157B1 (en) * | 2000-05-16 | 2002-05-07 | Union Carbide Chemicals & Plastics Technology Corporation | Method of detecting and correcting local defluidization and channeling in fluidized-bed reactors for polymerization |
WO2003051929A1 (en) * | 2001-12-17 | 2003-06-26 | Univation Technologies Llc | Method of applying non-linear dynamics to control a gas-phase polyethylene reactor operability |
US20040083028A1 (en) * | 2002-10-28 | 2004-04-29 | Ramaswamy Vaidyanathan | Process control using on-line instrumentation and process models |
US6826513B1 (en) * | 2002-11-29 | 2004-11-30 | Council Of Scientific & Industrial Research | Method and apparatus for online identification of safe operation and advance detection of unsafe operation of a system or process |
WO2006107437A1 (en) * | 2005-03-31 | 2006-10-12 | Univation Technologies, Llc | Method and system for assessing reactor fluidization quality and operability from frequency spectrum of temperature data |
Non-Patent Citations (1)
Title |
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Y. STAVROPOULOS, C. KIPARISSIDES: "Development of a prototype MSPC software package for on-line process monitoring and statistical quality control", COMPUT. APPL. ENG. EDUC., vol. 9, no. 3, 19 October 2001 (2001-10-19), pages 157 - 170, XP002538968 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106647597A (en) * | 2016-10-11 | 2017-05-10 | 南京工业大学 | PLC multi-segment temperature control method for fluidized bed catalytic combustion electric heating furnace |
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WO2009014682A2 (en) | 2009-01-29 |
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