EA199800049A1 - Способ регулирования синтеза химических продуктов, синтез химических продуктов и устройство регулирования синтеза - Google Patents

Способ регулирования синтеза химических продуктов, синтез химических продуктов и устройство регулирования синтеза

Info

Publication number
EA199800049A1
EA199800049A1 EA199800049A EA199800049A EA199800049A1 EA 199800049 A1 EA199800049 A1 EA 199800049A1 EA 199800049 A EA199800049 A EA 199800049A EA 199800049 A EA199800049 A EA 199800049A EA 199800049 A1 EA199800049 A1 EA 199800049A1
Authority
EA
Eurasian Patent Office
Prior art keywords
values
reactor
synthesis
control
chemical products
Prior art date
Application number
EA199800049A
Other languages
English (en)
Other versions
EA000343B1 (ru
Inventor
Жак Де Селлиер
Original Assignee
Солвей Полиолефин Юроп-Бельджем
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=EA199800049(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Солвей Полиолефин Юроп-Бельджем filed Critical Солвей Полиолефин Юроп-Бельджем
Publication of EA199800049A1 publication Critical patent/EA199800049A1/ru
Publication of EA000343B1 publication Critical patent/EA000343B1/ru

Links

Classifications

    • 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
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • 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

Abstract

Способ регулирования синтеза по меньшей мере одного химического продукта в установке, содержащей по меньшей мере один реактор (R), который может быть уподоблен реактору с идеальным перемешиванием, в котором регулирующие величины (GC) позволяют воздействовать на ход процесса, для того, чтобы одна или несколько величин, связанных со свойствами продукта и/или с ходом процесса, называемые регулируемыми величинами (GR), были равны соответствующим заданным значениям (C), причем названный метод включает в себя следующие этапы: а) ввод заданных значений, касающихся регулируемых величин (C), б) вычисление с помощью органа прогнозирования (OP) прогнозируемых регулируемых величин (P) на основе измерений регулирующих величин (M), в) использование органа контроля (OC) для подсчета заданных значений регулирующих величин (C) на основе заданных значений (C) и прогнозируемых значений (P) регулируемых величин, г) передача заданных значений регулирующих величин (C) воздействующим устройствам с целью воздействия на ход процесса, в котором орган прогнозирования (OP) основан на математической модели способа, называемой прямой моделью (M), и выполнен таким образом, что прогнозирует массу меньшей мере одного компонента (X) в реакторе (R) через уравнениеM=LAG(F∙t,t)в котором F- массовый расход компонента X, входящий в реактор R, t- время пребывания Х в реакторе, функция у=LAG(u,t) - решение дифференциального уравненияu=τ∙(dy/dt)+yподсчитанное с мгновенной величиной u и τ, а также с последней подсчитанной величиной y.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA199800049A 1995-06-09 1996-06-01 Способ регулирования синтеза химических продуктов, синтез химических продуктов и устройство регулирования синтеза EA000343B1 (ru)

Applications Claiming Priority (2)

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.
PCT/EP1996/002408 WO1996041822A1 (fr) 1995-06-09 1996-06-01 Methode de regulation de procedes de synthese de produits chimiques

Publications (2)

Publication Number Publication Date
EA199800049A1 true EA199800049A1 (ru) 1998-08-27
EA000343B1 EA000343B1 (ru) 1999-04-29

Family

ID=3889027

Family Applications (1)

Application Number Title Priority Date Filing Date
EA199800049A EA000343B1 (ru) 1995-06-09 1996-06-01 Способ регулирования синтеза химических продуктов, синтез химических продуктов и устройство регулирования синтеза

Country Status (20)

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

Families Citing this family (76)

* 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
EP1135420B1 (en) 1998-11-30 2004-10-06 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
US6479597B1 (en) 1999-07-30 2002-11-12 Exxonmobil Chemical Patents Inc. Raman analysis system for olefin polymerization control
EP1214362A1 (en) * 1999-07-30 2002-06-19 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
WO2002008839A1 (en) * 2000-07-21 2002-01-31 Unilever N.V. Method for simulating chemical reactions
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
ATE376005T1 (de) * 2000-12-04 2007-11-15 Univaton Technologies Llc Polymerisationsverfahren
US6605675B2 (en) 2000-12-04 2003-08-12 Univation Technologies, Llc Polymerization process
US6996550B2 (en) * 2000-12-15 2006-02-07 Symyx Technologies, Inc. Methods and apparatus for preparing 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
WO2003026791A1 (en) 2001-09-26 2003-04-03 Bp Corporation North America Inc. Integrated chemical process control
CA2466318A1 (en) * 2001-11-09 2003-05-22 Exxonmobil Chemical Patents Inc. On-line measurement and control of polymer properties by raman spectroscopy
CN1315876C (zh) * 2001-11-15 2007-05-16 尤尼威蒂恩技术有限责任公司 利用先行指标的聚合监测和控制
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
US7846736B2 (en) * 2001-12-17 2010-12-07 Univation Technologies, Llc Method for polymerization reaction monitoring with determination of entropy of monitored data
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
DE10216558A1 (de) * 2002-04-15 2003-10-30 Bayer Ag Verfahren und Computersystem zur Planung von Versuchen
EP1359168A1 (en) * 2002-05-03 2003-11-05 BP Lavéra SNC Rotomoulding polyethylene and method for producing same
JP4112900B2 (ja) * 2002-05-21 2008-07-02 株式会社山武 制御方法及び制御装置
US20060136149A1 (en) * 2002-10-15 2006-06-22 Long Robert L 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
WO2004040283A2 (en) * 2002-10-28 2004-05-13 Bp Corporation North America Inc. Control of a polymerization process
AU2003302739A1 (en) * 2003-01-06 2004-08-10 Exxonmobil Chemical Patents Inc. On-line measurement and control of polymer product properties by raman spectroscopy
PT1644422E (pt) * 2003-07-11 2007-02-28 Ineos Europe Ltd Processo para a (co-) polimerização de etileno em fase gasosa
EP1644423B1 (en) * 2003-07-11 2006-12-13 Ineos Europe Limited Process for the (co-)polymerisation of ethylene in the gas phase
US7402635B2 (en) * 2003-07-22 2008-07-22 Fina Technology, Inc. Process for preparing polyethylene
US8058366B2 (en) 2003-10-17 2011-11-15 Univation Technologies, Llc Polymerization monitoring and method of selecting leading indicators
US7838605B2 (en) * 2003-10-17 2010-11-23 Univation Technologies, Llc Polymerization monitoring and control using improved leading indicators
US7400941B2 (en) 2004-01-14 2008-07-15 Chrevron Phillips Chemical Company Lp Method and apparatus for monitoring polyolefin production
AR048828A1 (es) * 2004-04-13 2006-05-31 Union Carbide Chem Plastic Uso de un fraccionamiento instantaneo para mejorar el control del reactor
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
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
EP1764662B1 (en) * 2005-09-16 2009-07-01 Mettler-Toledo AG Method for simulating a process plant at laboratory scale
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
ATE528326T1 (de) 2007-10-31 2011-10-15 Basell Poliolefine Srl Verfahren zur steuerung eines lösungsverfahrens zur olefinpolymerisation
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
EP2477734A1 (de) 2009-09-17 2012-07-25 Basf Se Zwei-freiheitsgrade-regelung mit expliziter umschaltung zur regelung verfahrenstechnischer prozesse
US8710160B2 (en) 2009-12-22 2014-04-29 Basell Polyoefine Gmbh Process for the preparation of ethylene homopolymers or copolymers in a high-pressure reactor controlled by a model based predictive controller
US9273162B2 (en) 2010-12-22 2016-03-01 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
EP3858474A4 (en) * 2018-09-28 2021-12-22 FUJIFILM Corporation FLOW REACTION EQUIPMENT AND PROCEDURES
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 (en) * 2021-09-14 2023-03-15 Air Liquide Societe Anonyme pour l'Etude et L'Exploitation des procedes Georges Claude Methanol synthesis based on a mathematical model

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 (ru) * 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 (en) * 1990-11-13 1992-05-20 Vinamul Ltd. Chemical processes
EP0642534B1 (en) * 1992-05-29 1997-02-19 Amoco Corporation Polymerization of alpha-olefins
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
EP0830394A1 (fr) 1998-03-25
HUP9803021A2 (hu) 1999-04-28
EP0830394B1 (fr) 1999-03-17
MX9709813A (es) 1998-03-31
CA2220316A1 (fr) 1996-12-27
CA2220316C (fr) 2008-11-18
BR9609240A (pt) 1999-05-11
DE69601794T2 (de) 1999-10-07
KR100432252B1 (ko) 2004-09-18
NO975780L (no) 1998-02-06
BE1009406A3 (fr) 1997-03-04
CN1155626C (zh) 2004-06-30
AU6124696A (en) 1997-01-09
RO120973B1 (ro) 2006-10-30
HUP9803021A3 (en) 1999-05-28
EA000343B1 (ru) 1999-04-29
ES2131945T3 (es) 1999-08-01
UA37277C2 (ru) 2001-05-15
JP2000500060A (ja) 2000-01-11
WO1996041822A1 (fr) 1996-12-27
US6144897A (en) 2000-11-07
ATE177761T1 (de) 1999-04-15
CZ293002B6 (cs) 2004-01-14
PL186591B1 (pl) 2004-01-30
NO315563B1 (no) 2003-09-22
DE69601794D1 (de) 1999-04-22
PL323911A1 (en) 1998-04-27
CN1192222A (zh) 1998-09-02
AU704563B2 (en) 1999-04-29
NO975780D0 (no) 1997-12-08
CZ398597A3 (cs) 1998-03-18
KR19990022784A (ko) 1999-03-25

Similar Documents

Publication Publication Date Title
EA199800049A1 (ru) Способ регулирования синтеза химических продуктов, синтез химических продуктов и устройство регулирования синтеза
EP0263616B1 (en) Process control systems and methods
US3728085A (en) Predictive control system for polymerizing ethylene
Luss et al. Grouping of many species each consumed by two parallel first‐order reactions
SE8404776D0 (sv) Sett att reglera reduktion av zirkonium
OHMI et al. Analysis of velocity distribution in pulsating turbulent pipe flow with time-dependent friction velocity
Novotny et al. Equalization design techniques for conservative substances in wastewater treatment systems
Riggs et al. Comparison between process model based controllers
SU654627A2 (ru) Способ регулировани непрерывного процесса полимеризации
SU892403A2 (ru) Цифровой регул тор
SU484878A1 (ru) Способ автоматического регулировани ректификационной колонны разделени бинарной смеси
SU683797A1 (ru) Способ автоматического дозировани раствора реагента
SU724525A2 (ru) Способ регулировани молекул рно- массового распределени полибутадиена
Venkatesan A statistical approach to automatic process control (regulation schemes)
SU388760A1 (ru) Способ регулирования состава продукта процесса ректификации
SU797713A1 (ru) Устройство дл регулировани пОКАзАТЕл КАчЕСТВА пРОдуКТА
SU887575A1 (ru) Способ регулировани процесса растворной полимеризации бутадиена
SU1016301A1 (ru) Способ регулировани процесса эмульсионной полимеризации
SU922111A1 (ru) Способ регулировани процесса полимеризации бутадиена
SU1251037A1 (ru) Устройство дл регулировани расхода газа
Picart et al. Turbulent diffusion from thermal or reactive sources: numerical experiment
Walsh et al. Integrated design of waste water neutralization systems
SU773047A1 (ru) Способ автоматического управлени процессом получени стереорегул рных каучуков
SU527447A1 (ru) Способ регулировани непрерывного процесса полимеризации бутадиена
Brauner et al. What to do if relative volatilities cannot be assumed to be constant: Differential-algebraic equations systems in undergraduate education

Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG MD TJ TM

TC4A Change in name of a patent proprietor in a eurasian patent

Designated state(s): AM AZ BY KZ KG MD TJ TM