ATE177761T1 - Verfahren zur regulation von processen zur synthese chemischer produkte - Google Patents

Verfahren zur regulation von processen zur synthese chemischer produkte

Info

Publication number
ATE177761T1
ATE177761T1 AT96918665T AT96918665T ATE177761T1 AT E177761 T1 ATE177761 T1 AT E177761T1 AT 96918665 T AT96918665 T AT 96918665T AT 96918665 T AT96918665 T AT 96918665T AT E177761 T1 ATE177761 T1 AT E177761T1
Authority
AT
Austria
Prior art keywords
pct
synthesis
regulation
processes
chemical products
Prior art date
Application number
AT96918665T
Other languages
English (en)
Inventor
Selliers Jacques De
Original Assignee
Solvay
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3889027&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE177761(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Solvay filed Critical Solvay
Application granted granted Critical
Publication of ATE177761T1 publication Critical patent/ATE177761T1/de

Links

Classifications

    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G05B13/04—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
    • G05B13/048—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators using a predictor
    • 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
    • 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
    • C08F2/00—Processes of polymerisation
    • 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
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/32—Automatic controllers electric with inputs from more than one sensing element; with outputs to more than one correcting element
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials
AT96918665T 1995-06-09 1996-06-01 Verfahren zur regulation von processen zur synthese chemischer produkte ATE177761T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9500506A BE1009406A3 (fr) 1995-06-09 1995-06-09 Methode de regulation de procedes de synthese de produits chimiques.

Publications (1)

Publication Number Publication Date
ATE177761T1 true ATE177761T1 (de) 1999-04-15

Family

ID=3889027

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96918665T ATE177761T1 (de) 1995-06-09 1996-06-01 Verfahren zur regulation von processen zur synthese chemischer produkte

Country Status (20)

Country Link
US (1) US6144897A (de)
EP (1) EP0830394B1 (de)
JP (1) JP2000500060A (de)
KR (1) KR100432252B1 (de)
CN (1) CN1155626C (de)
AT (1) ATE177761T1 (de)
AU (1) AU704563B2 (de)
BE (1) BE1009406A3 (de)
BR (1) BR9609240A (de)
CA (1) CA2220316C (de)
CZ (1) CZ293002B6 (de)
DE (1) DE69601794T2 (de)
EA (1) EA000343B1 (de)
ES (1) ES2131945T3 (de)
HU (1) HUP9803021A3 (de)
NO (1) NO315563B1 (de)
PL (1) PL186591B1 (de)
RO (1) RO120973B1 (de)
UA (1) UA37277C2 (de)
WO (1) WO1996041822A1 (de)

Families Citing this family (77)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6106785A (en) * 1997-06-30 2000-08-22 Honeywell Inc. Polymerization process controller
US6122557A (en) * 1997-12-23 2000-09-19 Montell North America Inc. Non-linear model predictive control method for controlling a gas-phase reactor including a rapid noise filter and method therefor
GB2334958B (en) * 1998-02-25 2001-11-07 Porpoise Viscometers Ltd Melt flow index determination in polymer process control
US6093211A (en) * 1998-04-09 2000-07-25 Aspen Technology, Inc. Polymer property distribution functions methodology and simulators
BR9803848A (pt) 1998-10-08 2000-10-31 Opp Petroquimica S A Sistema para inferência em linha de propriedades fìsicas e quìmicas, sistema para inferência em linha de variáveis de processo, e, sistema de controle em linha
WO2000032651A1 (en) * 1998-11-30 2000-06-08 Bp Chemicals Limited Polymerisation control process
US6311134B1 (en) * 1999-02-09 2001-10-30 Mallinckrodt Inc. Process and apparatus for comparing chemical products
FR2790760A1 (fr) * 1999-03-12 2000-09-15 Bp Chemicals Snc Procede de polymerisation de l'isobutene
FR2794757B1 (fr) 1999-06-11 2002-06-14 Bp Chemicals Snc Procede de polymerisation de l'isobutene
WO2001009201A1 (en) * 1999-07-30 2001-02-08 Exxon Chemical Patents Inc. Raman analysis system for olefin polymerization control
US6479597B1 (en) 1999-07-30 2002-11-12 Exxonmobil Chemical Patents Inc. Raman analysis system for olefin polymerization control
US6983233B1 (en) 2000-04-19 2006-01-03 Symyx Technologies, Inc. Combinatorial parameter space experiment design
AU2001255551A1 (en) * 2000-04-27 2001-11-07 Bp Corporation North America Inc. Method for control of a chemical manufacturing process
FR2810325A1 (fr) * 2000-06-16 2001-12-21 Bp Chemicals Snc Procede de polymerisation de l'isobutene
EP1316000A1 (de) * 2000-07-21 2003-06-04 Unilever N.V. Verfahren zur simulation von chemischen reaktionen
US6625512B1 (en) * 2000-07-25 2003-09-23 Advanced Micro Devices, Inc. Method and apparatus for performing final critical dimension control
DE10037153C2 (de) * 2000-07-31 2003-04-10 Franz Willeke Vorrichtung zur Polymerisation in einem Schlaufenreaktor
TW542909B (en) * 2000-08-07 2003-07-21 Mitsui Chemicals Inc The method for controlling production process
US6760631B1 (en) 2000-10-04 2004-07-06 General Electric Company Multivariable control method and system without detailed prediction model
US6605675B2 (en) 2000-12-04 2003-08-12 Univation Technologies, Llc Polymerization process
RU2258712C2 (ru) * 2000-12-04 2005-08-20 Юнивейшн Технолоджиз, Ллс Способ полимеризации
CA2431066C (en) * 2000-12-15 2007-05-15 Youqi Wang Methods and apparatus for designing high-dimensional combinatorial experiments
FR2821175A1 (fr) * 2001-02-19 2002-08-23 Solvay Methode de regulation d'une propriete d'un produit resultant d'une transformation chimique
US6458916B1 (en) * 2001-08-29 2002-10-01 Hitachi, Ltd. Production process and production apparatus for polybutylene terephthalate
JP2003076934A (ja) * 2001-09-03 2003-03-14 Tosoh Corp ポリマーの物性予測方法及びそれを用いたプラントの運転制御方法
US6936665B2 (en) 2001-09-26 2005-08-30 Bp Corporation North America Inc. Integrated advanced chemical process control
JP4299135B2 (ja) 2001-11-09 2009-07-22 エクソンモービル・ケミカル・パテンツ・インク ラマン分光分析法によるポリマーの性質のオンライン測定及び制御
EP1453865A4 (de) * 2001-11-15 2005-02-09 Exxonmobil Chem Patents Inc Polymerisationsüberwachung und steuerung unter verwendung von leitindikatoren
US6657019B2 (en) 2001-11-20 2003-12-02 Basf Corporation Method and apparatus for predicting polymer latex properties in an emulsion polymerization process to improve the quality and productivity of the polymer latex
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
DE10216558A1 (de) * 2002-04-15 2003-10-30 Bayer Ag Verfahren und Computersystem zur Planung von Versuchen
EP1359168A1 (de) * 2002-05-03 2003-11-05 BP Lavéra SNC Polyethylen zum Rotationsformen und Verfahren zu dessen Herstellung
JP4112900B2 (ja) * 2002-05-21 2008-07-02 株式会社山武 制御方法及び制御装置
CA2501528A1 (en) * 2002-10-15 2004-04-15 Exxonmobil Chemical Patents Inc. On-line measurement and control of polymer properties by raman spectroscopy
CA2409600A1 (en) * 2002-10-24 2004-04-24 Bayer Inc. Process for the preparation of isoolefin polymers with controlled free-radical curability
US7319040B2 (en) * 2002-10-28 2008-01-15 Ineos Usa Llc Process control using on-line instrumentation and process models
CN1708352A (zh) * 2002-10-28 2005-12-14 Bp北美公司 采用在线仪器数据转换的化学制造工艺和方法
WO2004063234A1 (en) * 2003-01-06 2004-07-29 Exxonmobil Chemical Patents Inc. On-line measurement and control of polymer product properties by raman spectroscopy
DE602004003707T2 (de) * 2003-07-11 2007-04-12 Innovene Europe Ltd., Staines Verfahren zur polymerisation und copolymerisation von ethylen in der gasphase
EP1644422B1 (de) 2003-07-11 2006-12-06 Ineos Europe Limited Verfahren zur polymerisation und copolymerisation von ethylen in der gasphase
US7402635B2 (en) * 2003-07-22 2008-07-22 Fina Technology, Inc. Process for preparing polyethylene
US7838605B2 (en) * 2003-10-17 2010-11-23 Univation Technologies, Llc Polymerization monitoring and control using improved leading indicators
US8058366B2 (en) 2003-10-17 2011-11-15 Univation Technologies, Llc Polymerization monitoring and method of selecting leading indicators
US7400941B2 (en) 2004-01-14 2008-07-15 Chrevron Phillips Chemical Company Lp Method and apparatus for monitoring polyolefin production
US20050228150A1 (en) * 2004-04-13 2005-10-13 Union Carbide Chemicals & Plastics Technology Corporation Use of instantaneous split to improve reactor control
US7505127B2 (en) * 2005-07-22 2009-03-17 Exxonmobil Chemical Patents Inc. On-line raman analysis and control of a high pressure reaction system
WO2007018773A1 (en) * 2005-07-22 2007-02-15 Exxonmobil Chemical Patents Inc. On-line analysis of polymer properties for control of a solution phase reaction system
US7483129B2 (en) * 2005-07-22 2009-01-27 Exxonmobil Chemical Patents Inc. On-line properties analysis of a molten polymer by raman spectroscopy for control of a mixing device
DE602005015220D1 (de) * 2005-09-16 2009-08-13 Mettler Toledo Ag Verfahren zur Simulierung eines Prozesses auf Labormassstab
US8036760B2 (en) * 2005-10-04 2011-10-11 Fisher-Rosemount Systems, Inc. Method and apparatus for intelligent control and monitoring in a process control system
US7738975B2 (en) 2005-10-04 2010-06-15 Fisher-Rosemount Systems, Inc. Analytical server integrated in a process control network
US7444191B2 (en) 2005-10-04 2008-10-28 Fisher-Rosemount Systems, Inc. Process model identification in a process control system
US20070255022A1 (en) * 2006-04-28 2007-11-01 Fina Technology, Inc. Fluorinated transition metal catalysts and formation thereof
US8110518B2 (en) * 2006-04-28 2012-02-07 Fina Technology, Inc. Fluorinated transition metal catalysts and formation thereof
US8138285B2 (en) * 2007-10-26 2012-03-20 Fina Technology, Inc. Fluorinated impregnated catalyst systems and methods of forming the same
CN101910215A (zh) * 2007-10-31 2010-12-08 巴塞尔聚烯烃意大利有限责任公司 控制烯烃聚合的溶液工艺的方法
US8114353B2 (en) 2007-12-20 2012-02-14 Chevron Phillips Chemical Company Lp Continuous catalyst activator
US8933178B2 (en) 2008-12-29 2015-01-13 Basell Poliolefine Italia S.R.L. Gas-phase polymerization reactor control
CN101876822B (zh) * 2009-04-30 2012-07-25 上海天坛助剂有限公司 聚氧乙烯醚生产装置的自动化控制方法
US9289739B2 (en) 2009-06-23 2016-03-22 Chevron Philips Chemical Company Lp Continuous preparation of calcined chemically-treated solid oxides
WO2011032918A1 (de) 2009-09-17 2011-03-24 Basf Se Zwei-freiheitsgrade-regelung mit expliziter umschaltung zur regelung verfahrenstechnischer prozesse
CN102666608B (zh) * 2009-12-22 2014-03-26 巴塞尔聚烯烃股份有限公司 由基于模型的预测控制器控制的高压反应器中乙烯均聚物或共聚物制备工艺
WO2012084772A1 (en) * 2010-12-22 2012-06-28 Basell Polyolefine Gmbh Process for monitoring the polymerization of ethylene or ethylene and comonomers in a tubular-reactor at high-pressures
US9016075B1 (en) 2012-01-04 2015-04-28 The Boeing Company Aircraft environmental control system and method
EP2874029A1 (de) * 2013-11-15 2015-05-20 Bayer Technology Services GmbH Verfahren zum Betreiben einer zur Durchführung von wenigstens einer chemischen Reaktion eingerichteten Anlage
CN104656457A (zh) * 2013-11-19 2015-05-27 中国石油天然气股份有限公司 一种丙烯聚合环管反应器内部压力计算方法
US9389161B2 (en) 2014-04-09 2016-07-12 Exxonmobil Chemical Patents Inc. On-line FT-NIR method to determine particle size and distribution
CN105116931A (zh) * 2015-07-21 2015-12-02 首钢京唐钢铁联合有限责任公司 一种氢氮混合站的氢气控制方法及系统
IT201600081868A1 (it) * 2016-08-03 2018-02-03 Versalis Spa Metodo e sistema per il controllo di un impianto di produzione in continuo di un polimero.
CN106647285B (zh) * 2017-02-10 2019-08-09 泉州装备制造研究所 一种基于软测量技术的催化剂活性检测方法
EP3605249A1 (de) * 2018-08-02 2020-02-05 Siemens Aktiengesellschaft Verfahren zur synchronisierung, verfahren zum betreiben einer industriellen anlage, vorrichtung, computerprogrammprodukt und computerlesbares medium
WO2020066309A1 (ja) * 2018-09-28 2020-04-02 富士フイルム株式会社 フロー反応設備及び方法
WO2020160078A1 (en) * 2019-01-31 2020-08-06 Dow Global Technologies Llc Process control
CN111240284B (zh) * 2020-01-17 2023-03-10 陈欣 一种模拟生产过程中液体浆料产品产量的品质控制方法
CN113176767B (zh) * 2021-04-30 2022-09-27 北京瑞飞华亿科技有限公司 一种丙烯回收控制系统
EP4148035A1 (de) * 2021-09-14 2023-03-15 Air Liquide Societe Anonyme pour l'Etude et L'Exploitation des procedes Georges Claude Methanolsynthese auf basis eines mathematischen modells

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725654A (en) * 1982-04-02 1988-02-16 The Dow Chemical Company Process for anionic polymerization
IN160886B (de) * 1983-04-25 1987-08-15 Babcock & Wilcox Co
US4668473A (en) * 1983-04-25 1987-05-26 The Babcock & Wilcox Company Control system for ethylene polymerization reactor
US4572819A (en) * 1983-08-24 1986-02-25 The Dow Chemical Company Apparatus for anionic polymerization wherein the molecular weight of the polymer is closely controlled
US4921919A (en) * 1985-12-10 1990-05-01 Amoco Corporation Method and apparatus for minimizing polymer agglomerate or lump formation in a gas-phase polypropylene polymerization reactor
US5065336A (en) * 1989-05-18 1991-11-12 E. I. Du Pont De Nemours And Company On-line determination of polymer properties in a continuous polymerization reactor
EP0486262A1 (de) * 1990-11-13 1992-05-20 Vinamul Ltd. Chemisches Verfahren
DE69308209T2 (de) * 1992-05-29 1997-06-12 Amoco Corp Polymerisation von alpha-olefinen
JPH063243A (ja) * 1992-06-23 1994-01-11 Asahi Chem Ind Co Ltd ゴム状重合体の物性推定方法
JPH0628009A (ja) * 1992-07-07 1994-02-04 Asahi Chem Ind Co Ltd 重合プロセスの制御方法
JP3331031B2 (ja) * 1993-12-15 2002-10-07 昭和電工株式会社 ポリオレフィン重合反応器のスタートアップ制御方法および装置
US5570282A (en) * 1994-11-01 1996-10-29 The Foxboro Company Multivariable nonlinear process controller

Also Published As

Publication number Publication date
HUP9803021A3 (en) 1999-05-28
KR19990022784A (ko) 1999-03-25
US6144897A (en) 2000-11-07
CA2220316C (fr) 2008-11-18
PL186591B1 (pl) 2004-01-30
HUP9803021A2 (hu) 1999-04-28
CZ293002B6 (cs) 2004-01-14
EA000343B1 (ru) 1999-04-29
ES2131945T3 (es) 1999-08-01
EA199800049A1 (ru) 1998-08-27
NO975780D0 (no) 1997-12-08
EP0830394B1 (de) 1999-03-17
NO315563B1 (no) 2003-09-22
KR100432252B1 (ko) 2004-09-18
NO975780L (no) 1998-02-06
WO1996041822A1 (fr) 1996-12-27
CZ398597A3 (cs) 1998-03-18
PL323911A1 (en) 1998-04-27
JP2000500060A (ja) 2000-01-11
CN1155626C (zh) 2004-06-30
BE1009406A3 (fr) 1997-03-04
DE69601794D1 (de) 1999-04-22
CN1192222A (zh) 1998-09-02
AU704563B2 (en) 1999-04-29
UA37277C2 (uk) 2001-05-15
MX9709813A (es) 1998-03-31
AU6124696A (en) 1997-01-09
CA2220316A1 (fr) 1996-12-27
EP0830394A1 (de) 1998-03-25
BR9609240A (pt) 1999-05-11
RO120973B1 (ro) 2006-10-30
DE69601794T2 (de) 1999-10-07

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