WO1998029787A1 - On-line control of a chemical process plant - Google Patents
On-line control of a chemical process plant Download PDFInfo
- Publication number
- WO1998029787A1 WO1998029787A1 PCT/US1997/023734 US9723734W WO9829787A1 WO 1998029787 A1 WO1998029787 A1 WO 1998029787A1 US 9723734 W US9723734 W US 9723734W WO 9829787 A1 WO9829787 A1 WO 9829787A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spectra
- property
- value
- polymer
- calibration samples
- Prior art date
Links
- 238000001311 chemical methods and process Methods 0.000 title abstract description 4
- 238000000034 method Methods 0.000 claims abstract description 136
- 230000008569 process Effects 0.000 claims abstract description 56
- 238000005259 measurement Methods 0.000 claims abstract description 53
- 229920000642 polymer Polymers 0.000 claims abstract description 41
- 238000001228 spectrum Methods 0.000 claims description 64
- 238000012360 testing method Methods 0.000 claims description 27
- 238000000746 purification Methods 0.000 claims description 21
- 230000003647 oxidation Effects 0.000 claims description 18
- 238000007254 oxidation reaction Methods 0.000 claims description 18
- 230000026030 halogenation Effects 0.000 claims description 17
- 238000005658 halogenation reaction Methods 0.000 claims description 17
- 229910052736 halogen Inorganic materials 0.000 claims description 16
- 150000002367 halogens Chemical class 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 238000006116 polymerization reaction Methods 0.000 claims description 15
- 238000000862 absorption spectrum Methods 0.000 claims description 12
- 239000000178 monomer Substances 0.000 claims description 12
- 238000010348 incorporation Methods 0.000 claims description 11
- 150000001336 alkenes Chemical class 0.000 claims description 10
- 230000029936 alkylation Effects 0.000 claims description 9
- 238000005804 alkylation reaction Methods 0.000 claims description 9
- 238000005899 aromatization reaction Methods 0.000 claims description 9
- 125000003118 aryl group Chemical group 0.000 claims description 9
- 230000006315 carbonylation Effects 0.000 claims description 9
- 238000005810 carbonylation reaction Methods 0.000 claims description 9
- 238000004523 catalytic cracking Methods 0.000 claims description 9
- 238000001833 catalytic reforming Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 9
- 238000002425 crystallisation Methods 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 9
- 230000018044 dehydration Effects 0.000 claims description 9
- 238000006297 dehydration reaction Methods 0.000 claims description 9
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 9
- 238000006471 dimerization reaction Methods 0.000 claims description 9
- 238000004821 distillation Methods 0.000 claims description 9
- 238000006735 epoxidation reaction Methods 0.000 claims description 9
- 230000032050 esterification Effects 0.000 claims description 9
- 238000005886 esterification reaction Methods 0.000 claims description 9
- 238000000895 extractive distillation Methods 0.000 claims description 9
- 230000036571 hydration Effects 0.000 claims description 9
- 238000006703 hydration reaction Methods 0.000 claims description 9
- 238000005984 hydrogenation reaction Methods 0.000 claims description 9
- 238000006317 isomerization reaction Methods 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 9
- 238000006386 neutralization reaction Methods 0.000 claims description 9
- 238000006396 nitration reaction Methods 0.000 claims description 9
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 9
- 238000006384 oligomerization reaction Methods 0.000 claims description 9
- 238000005502 peroxidation Methods 0.000 claims description 9
- 238000000197 pyrolysis Methods 0.000 claims description 9
- 238000007363 ring formation reaction Methods 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 238000004230 steam cracking Methods 0.000 claims description 9
- 238000004227 thermal cracking Methods 0.000 claims description 9
- 238000000354 decomposition reaction Methods 0.000 claims description 7
- 238000002329 infrared spectrum Methods 0.000 claims 12
- 230000002730 additional effect Effects 0.000 claims 9
- 238000001237 Raman spectrum Methods 0.000 claims 4
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 claims 4
- 230000003595 spectral effect Effects 0.000 abstract description 22
- 239000000523 sample Substances 0.000 abstract description 21
- 238000004886 process control Methods 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 8
- 229920005555 halobutyl Polymers 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 125000004968 halobutyl group Chemical group 0.000 abstract description 5
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000009529 body temperature measurement Methods 0.000 abstract description 4
- 229920001971 elastomer Polymers 0.000 abstract description 4
- 239000005060 rubber Substances 0.000 abstract description 4
- 238000012625 in-situ measurement Methods 0.000 abstract description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000000704 physical effect Effects 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 description 28
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 27
- 239000000047 product Substances 0.000 description 20
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 18
- 229920005549 butyl rubber Polymers 0.000 description 13
- 238000012937 correction Methods 0.000 description 11
- 239000004568 cement Substances 0.000 description 9
- 229940050176 methyl chloride Drugs 0.000 description 9
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 8
- 241000196324 Embryophyta Species 0.000 description 6
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 230000009102 absorption Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000006085 branching agent Substances 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- 229910052794 bromium Inorganic materials 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000013598 vector Substances 0.000 description 2
- 238000011179 visual inspection Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 238000001069 Raman spectroscopy Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical class CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 description 1
- 235000013539 calcium stearate Nutrition 0.000 description 1
- 239000008116 calcium stearate Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000002790 cross-validation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003701 inert diluent Substances 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000000528 statistical test Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- 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
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/04—Monomers containing three or four carbon atoms
- C08F210/08—Butenes
- C08F210/10—Isobutene
- C08F210/12—Isobutene with conjugated diolefins, e.g. butyl rubber
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/45—Interferometric spectrometry
- G01J3/453—Interferometric spectrometry by correlation of the amplitudes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N2021/3595—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using FTIR
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8411—Application to online plant, process monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/129—Using chemometrical methods
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES97953394T ES2160983T5 (en) | 1996-12-31 | 1997-12-31 | ONLINE CONTROL OF A CHEMICAL PROCESS PLANT. |
PL97334397A PL334397A1 (en) | 1996-12-31 | 1997-12-31 | Chemical plant direct control system |
IL13073197A IL130731A (en) | 1996-12-31 | 1997-12-31 | On-line control of a chemical process plant |
EP97953394A EP0948761B2 (en) | 1996-12-31 | 1997-12-31 | On-line control of a chemical process plant |
JP53015698A JP4435307B2 (en) | 1996-12-31 | 1997-12-31 | Online control of chemical process plant |
CA002276624A CA2276624C (en) | 1996-12-31 | 1997-12-31 | On-line control of a chemical process plant |
AU57149/98A AU727750B2 (en) | 1996-12-31 | 1997-12-31 | On-line control of a chemical process plant |
DE69705323T DE69705323T3 (en) | 1996-12-31 | 1997-12-31 | ON-LINE CONTROL OF A CHEMICAL PROCESSING SYSTEM |
KR10-1999-7006010A KR100500802B1 (en) | 1996-12-31 | 1997-12-31 | On-line control of a chemical process plant |
BR9714450-9A BR9714450A (en) | 1996-12-31 | 1997-12-31 | Online control of an industrial chemical process installation |
RU99116247/09A RU99116247A (en) | 1996-12-31 | 1997-12-31 | METHOD OF OPERATIONAL MANAGEMENT OF CHEMICAL PROCESS |
NO19993261A NO316346B1 (en) | 1996-12-31 | 1999-06-30 | Online control of a chemical processing plant |
HK00105264A HK1026034A1 (en) | 1996-12-31 | 2000-08-22 | On-line control of a chemical process plant |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3461496P | 1996-12-31 | 1996-12-31 | |
US60/034,614 | 1996-12-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998029787A1 true WO1998029787A1 (en) | 1998-07-09 |
Family
ID=21877515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/023734 WO1998029787A1 (en) | 1996-12-31 | 1997-12-31 | On-line control of a chemical process plant |
Country Status (18)
Country | Link |
---|---|
US (1) | US6072576A (en) |
EP (1) | EP0948761B2 (en) |
JP (1) | JP4435307B2 (en) |
KR (1) | KR100500802B1 (en) |
CN (1) | CN1105956C (en) |
AU (1) | AU727750B2 (en) |
BR (1) | BR9714450A (en) |
CA (1) | CA2276624C (en) |
DE (1) | DE69705323T3 (en) |
ES (1) | ES2160983T5 (en) |
HK (1) | HK1026034A1 (en) |
IL (1) | IL130731A (en) |
MY (1) | MY117038A (en) |
NO (1) | NO316346B1 (en) |
PL (1) | PL334397A1 (en) |
RU (1) | RU99116247A (en) |
TW (2) | TW558557B (en) |
WO (1) | WO1998029787A1 (en) |
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WO2000001521A1 (en) * | 1998-07-06 | 2000-01-13 | Exxon Chemical Patents Inc. | Apparatus and method for dewatering an elastomeric polymer |
WO2001002088A1 (en) * | 1999-07-06 | 2001-01-11 | Neste Chemicals Oy | Method for the control of the manufacturing process of polyols |
WO2002035213A1 (en) * | 2000-10-26 | 2002-05-02 | Imerys Minerals Limited | Processing of inorganic particulate materials |
US6635224B1 (en) * | 1998-10-30 | 2003-10-21 | General Electric Company | Online monitor for polymer processes |
EP1512960A1 (en) * | 2003-08-11 | 2005-03-09 | Bayer Chemicals AG | Spectroscopic determination of concentration in a rectifying column |
EP1750128A3 (en) * | 2005-08-04 | 2007-08-29 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and device for measuring the degree of cure of a duroplastic material |
KR100755760B1 (en) | 2000-04-27 | 2007-09-05 | 비피 코포레이션 노쓰 아메리카 인코포레이티드 | Method for control of a chemical manufacturing process |
US7307257B2 (en) | 2002-01-01 | 2007-12-11 | Exxonmobil Chemical Patents Inc. | Method and apparatus for on-line measurement of polymer properties |
US7973125B2 (en) | 2005-03-31 | 2011-07-05 | Hitachi Chemical Co., Ltd. | Method of evaluating polymide dissolution rate, method of producing polymide, and polymide obtained using same methods |
WO2012045597A1 (en) * | 2010-10-08 | 2012-04-12 | Lanxess Deutschland Gmbh | Activity monitoring and polymerization process control |
WO2016054138A1 (en) | 2014-10-01 | 2016-04-07 | Advanced Polymer Monitoring Technologies, Inc. | Systems and methods for control of polymer reactions and processing using automatic continuous online monitoring |
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WO2019168729A1 (en) * | 2018-02-28 | 2019-09-06 | Chevron Phillips Chemical Company Lp | Advanced quality control tools for manufacturing bimodal and multimodal polyethylene resins |
WO2019191078A1 (en) * | 2018-03-28 | 2019-10-03 | Dow Global Technologies Llc | Method to monitor and control the polymerization of a polymer |
EP3711852A1 (en) | 2019-03-21 | 2020-09-23 | Covestro Deutschland AG | Method and apparatus for quantitative monitoring of the composition of a oligomer/monomer mixture |
US11384174B2 (en) | 2019-05-15 | 2022-07-12 | Exxonmobil Chemical Patents Inc. | Detection of polymer concentration in polymerization process using refractive index measurement |
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DE19736310A1 (en) * | 1997-08-21 | 1999-02-25 | Bayer Ag | Process for the production of partially hydrogenated acrylonitrile butadiene rubbers (HNBR) using on-line Raman spectroscopy |
US6200134B1 (en) | 1998-01-20 | 2001-03-13 | Kerr Corporation | Apparatus and method for curing materials with radiation |
US6748334B1 (en) * | 1999-12-06 | 2004-06-08 | Jorge E. Perez | Specialty gas analysis system |
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US6632680B1 (en) * | 2000-09-22 | 2003-10-14 | Deslauriers Paul J. | Measurement of short chain branching in olefin copolymers using chemometric analysis |
US7194369B2 (en) * | 2001-07-23 | 2007-03-20 | Cognis Corporation | On-site analysis system with central processor and method of analyzing |
KR100749589B1 (en) * | 2001-10-25 | 2007-08-14 | 에스케이에너지 주식회사 | Method for applying near-infrared spectroscopic analysis to ethylene plant |
JP2005507456A (en) | 2001-10-30 | 2005-03-17 | バイエル アクチェンゲゼルシャフト | Method for measuring reaction progress of graft polymerization reaction |
WO2003042646A2 (en) | 2001-11-09 | 2003-05-22 | Exxonmobil Chemical Patents Inc. | On-line measurement and control of polymer properties by raman spectroscopy |
US6847899B2 (en) | 2002-04-26 | 2005-01-25 | Dean Allgeyer, M.D., Inc. | Device and method for qualitative and quantitative determination of intravenous fluid components |
KR20060024318A (en) * | 2002-10-15 | 2006-03-16 | 엑손모빌 케미칼 패턴츠 인코포레이티드 | On-line measurement and control of polymer properties by raman spectroscopy |
CN1708352A (en) * | 2002-10-28 | 2005-12-14 | Bp北美公司 | Process and method for chemical manufacturing using transformation of on-line instrumentation data |
US7319040B2 (en) * | 2002-10-28 | 2008-01-15 | Ineos Usa Llc | Process control using on-line instrumentation and process models |
AU2003302739A1 (en) * | 2003-01-06 | 2004-08-10 | Exxonmobil Chemical Patents Inc. | On-line measurement and control of polymer product properties by raman spectroscopy |
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Also Published As
Publication number | Publication date |
---|---|
NO316346B1 (en) | 2004-01-12 |
NO993261L (en) | 1999-08-26 |
BR9714450A (en) | 2000-12-05 |
EP0948761B2 (en) | 2011-09-07 |
JP4435307B2 (en) | 2010-03-17 |
RU99116247A (en) | 2001-08-20 |
MY117038A (en) | 2004-04-30 |
HK1026034A1 (en) | 2000-12-01 |
IL130731A (en) | 2004-07-25 |
KR20000062408A (en) | 2000-10-25 |
DE69705323T3 (en) | 2012-02-09 |
CN1245570A (en) | 2000-02-23 |
US6072576A (en) | 2000-06-06 |
TWI266769B (en) | 2006-11-21 |
AU727750B2 (en) | 2000-12-21 |
CN1105956C (en) | 2003-04-16 |
DE69705323D1 (en) | 2001-07-26 |
NO993261D0 (en) | 1999-06-30 |
DE69705323T2 (en) | 2002-04-25 |
EP0948761A1 (en) | 1999-10-13 |
CA2276624C (en) | 2001-07-24 |
TW558557B (en) | 2003-10-21 |
IL130731A0 (en) | 2000-06-01 |
AU5714998A (en) | 1998-07-31 |
ES2160983T3 (en) | 2001-11-16 |
JP2001508354A (en) | 2001-06-26 |
CA2276624A1 (en) | 1998-07-09 |
PL334397A1 (en) | 2000-02-28 |
EP0948761B1 (en) | 2001-06-20 |
ES2160983T5 (en) | 2012-02-15 |
KR100500802B1 (en) | 2005-07-12 |
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