AU727750B2 - On-line control of a chemical process plant - Google Patents
On-line control of a chemical process plant Download PDFInfo
- Publication number
- AU727750B2 AU727750B2 AU57149/98A AU5714998A AU727750B2 AU 727750 B2 AU727750 B2 AU 727750B2 AU 57149/98 A AU57149/98 A AU 57149/98A AU 5714998 A AU5714998 A AU 5714998A AU 727750 B2 AU727750 B2 AU 727750B2
- Authority
- AU
- Australia
- Prior art keywords
- spectra
- property
- polymer
- product
- value
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 238000001311 chemical methods and process Methods 0.000 title description 3
- 238000000034 method Methods 0.000 claims description 128
- 230000008569 process Effects 0.000 claims description 70
- 238000001228 spectrum Methods 0.000 claims description 56
- 238000005259 measurement Methods 0.000 claims description 47
- 229920000642 polymer Polymers 0.000 claims description 39
- 238000012360 testing method Methods 0.000 claims description 26
- 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
- 239000000178 monomer Substances 0.000 claims description 12
- 238000010348 incorporation Methods 0.000 claims description 11
- 238000000862 absorption spectrum Methods 0.000 claims description 10
- 230000002730 additional effect Effects 0.000 claims description 10
- 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
- 238000001237 Raman spectrum Methods 0.000 claims 4
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 claims 4
- 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 22
- 239000000523 sample Substances 0.000 description 21
- 230000003595 spectral effect Effects 0.000 description 21
- 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
- 238000004886 process control Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 6
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 6
- 229920005555 halobutyl Polymers 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 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
- 239000000356 contaminant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000004968 halobutyl group Chemical group 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
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 230000009102 absorption Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 238000009529 body temperature measurement Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000005060 rubber 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
- MCNQUWLLXZZZAC-UHFFFAOYSA-N 4-cyano-1-(2,4-dichlorophenyl)-5-(4-methoxyphenyl)-n-piperidin-1-ylpyrazole-3-carboxamide Chemical compound C1=CC(OC)=CC=C1C1=C(C#N)C(C(=O)NN2CCCCC2)=NN1C1=CC=C(Cl)C=C1Cl MCNQUWLLXZZZAC-UHFFFAOYSA-N 0.000 description 1
- 101100063432 Caenorhabditis elegans dim-1 gene Proteins 0.000 description 1
- 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
- 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
- -1 chemical compounds carbon dioxide Chemical class 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
- 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
- 238000012625 in-situ measurement Methods 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
- 238000012544 monitoring process Methods 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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Automation & Control Theory (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Control Of Non-Electrical Variables (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Polymerisation Methods In General (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3461496P | 1996-12-31 | 1996-12-31 | |
| US60/034614 | 1996-12-31 | ||
| PCT/US1997/023734 WO1998029787A1 (en) | 1996-12-31 | 1997-12-31 | On-line control of a chemical process plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU5714998A AU5714998A (en) | 1998-07-31 |
| AU727750B2 true AU727750B2 (en) | 2000-12-21 |
Family
ID=21877515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU57149/98A Expired AU727750B2 (en) | 1996-12-31 | 1997-12-31 | On-line control of a chemical process plant |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US6072576A (enExample) |
| EP (1) | EP0948761B2 (enExample) |
| JP (1) | JP4435307B2 (enExample) |
| KR (1) | KR100500802B1 (enExample) |
| CN (1) | CN1105956C (enExample) |
| AU (1) | AU727750B2 (enExample) |
| BR (1) | BR9714450A (enExample) |
| CA (1) | CA2276624C (enExample) |
| DE (1) | DE69705323T3 (enExample) |
| ES (1) | ES2160983T5 (enExample) |
| IL (1) | IL130731A (enExample) |
| MY (1) | MY117038A (enExample) |
| NO (1) | NO316346B1 (enExample) |
| PL (1) | PL334397A1 (enExample) |
| RU (1) | RU99116247A (enExample) |
| TW (2) | TW558557B (enExample) |
| WO (1) | WO1998029787A1 (enExample) |
Families Citing this family (121)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19736310A1 (de) * | 1997-08-21 | 1999-02-25 | Bayer Ag | Verfahren zur Herstellung von teilhydrierten Acrylnitril-Butadien-Kautschuken (HNBR) unter on-line-Anwendung der Raman-Spektroskopie |
| US6200134B1 (en) | 1998-01-20 | 2001-03-13 | Kerr Corporation | Apparatus and method for curing materials with radiation |
| US6517335B1 (en) | 1998-07-06 | 2003-02-11 | Exxon Chemical Patents Inc. | Apparatus dewatering an elastomeric polymer |
| US6635224B1 (en) * | 1998-10-30 | 2003-10-21 | General Electric Company | Online monitor for polymer processes |
| FI991542A7 (fi) * | 1999-07-06 | 2001-01-07 | Neste Chemicals Oy | Menetelmä moniarvoisten alkoholien valmistusprosessin ohjaamiseksi |
| US6748334B1 (en) * | 1999-12-06 | 2004-06-08 | Jorge E. Perez | Specialty gas analysis system |
| SK15342002A3 (sk) | 2000-04-27 | 2003-09-11 | Bp Corporation North America Inc. | Spôsob regulácie chemického výrobného procesu |
| EP1308800B1 (en) * | 2000-08-07 | 2010-03-17 | Mitsui Chemicals, Inc. | Production control method |
| US6632680B1 (en) * | 2000-09-22 | 2003-10-14 | Deslauriers Paul J. | Measurement of short chain branching in olefin copolymers using chemometric analysis |
| GB0026173D0 (en) * | 2000-10-26 | 2000-12-13 | Imerys Minerals Ltd | Processing of inorganic particulate materials |
| US7194369B2 (en) * | 2001-07-23 | 2007-03-20 | Cognis Corporation | On-site analysis system with central processor and method of analyzing |
| KR100749589B1 (ko) * | 2001-10-25 | 2007-08-14 | 에스케이에너지 주식회사 | 에틸렌 제조공정에 근적외선 분광분석 기술을 적용하는 방법 |
| JP2005507456A (ja) * | 2001-10-30 | 2005-03-17 | バイエル アクチェンゲゼルシャフト | グラフト重合反応の反応進行の測定方法 |
| BR0213978A (pt) | 2001-11-09 | 2004-10-19 | Exxonmobil Chemical Patentes I | Medição on-line e controle de propriedades de polìmero por espectroscopia raman |
| US7307257B2 (en) * | 2002-01-01 | 2007-12-11 | Exxonmobil Chemical Patents Inc. | Method and apparatus for on-line measurement of polymer properties |
| 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 |
| WO2005049663A2 (en) * | 2002-10-15 | 2005-06-02 | Exxonmobil Chemical Patents Inc. | On-line measurement and control of polymer properties by raman spectroscopy |
| 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 |
| 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 |
| DE10304615A1 (de) * | 2003-02-05 | 2004-08-19 | Bayer Ag | Verfahren zur Überwachung und Führung von Nitrierprozessen mit Hilfe von Online-Spektrometern |
| DE10322439A1 (de) * | 2003-05-19 | 2004-12-09 | Bayer Ag | Verfahren und Vorrichtung zur Bestimmung der Isomerenzusammensetzung bei Isocyanat-Herstellprozessen |
| US7173095B2 (en) * | 2003-06-20 | 2007-02-06 | Akzo Nobel N. V. | Polymerization process involving the dosing initiators |
| US7402635B2 (en) * | 2003-07-22 | 2008-07-22 | Fina Technology, Inc. | Process for preparing polyethylene |
| DE10336875A1 (de) * | 2003-08-11 | 2005-03-17 | Bayer Chemicals Ag | Spektroskopische Konzentrationsbestimmung in einer Rektifikationskolonne |
| EP1713840B1 (en) * | 2004-01-14 | 2019-04-24 | Chevron Phillips Chemical Company Lp | Method and apparatus for monitoring polyolefin production |
| US7400941B2 (en) * | 2004-01-14 | 2008-07-15 | Chrevron Phillips Chemical Company Lp | Method and apparatus for monitoring polyolefin production |
| CA2470887C (en) * | 2004-06-14 | 2014-10-21 | Nova Chemicals Corporation | Detection of gels in a solution polymerization |
| EP1776328B2 (en) * | 2004-08-02 | 2025-03-26 | Dow Technology Investments LLC | Stabilization of a hydroformylation process |
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| WO2006106934A1 (ja) | 2005-03-31 | 2006-10-12 | Hitachi Chemical Co., Ltd. | ポリイミドの溶解速度評価方法、ポリイミドの製造方法、及びこれらの方法を用いて得られるポリイミド |
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Also Published As
| Publication number | Publication date |
|---|---|
| US6072576A (en) | 2000-06-06 |
| DE69705323T2 (de) | 2002-04-25 |
| WO1998029787A1 (en) | 1998-07-09 |
| CN1245570A (zh) | 2000-02-23 |
| MY117038A (en) | 2004-04-30 |
| CA2276624C (en) | 2001-07-24 |
| TW558557B (en) | 2003-10-21 |
| KR100500802B1 (ko) | 2005-07-12 |
| EP0948761A1 (en) | 1999-10-13 |
| DE69705323T3 (de) | 2012-02-09 |
| NO993261L (no) | 1999-08-26 |
| ES2160983T3 (es) | 2001-11-16 |
| KR20000062408A (ko) | 2000-10-25 |
| EP0948761B1 (en) | 2001-06-20 |
| CN1105956C (zh) | 2003-04-16 |
| TWI266769B (en) | 2006-11-21 |
| DE69705323D1 (de) | 2001-07-26 |
| NO993261D0 (no) | 1999-06-30 |
| EP0948761B2 (en) | 2011-09-07 |
| CA2276624A1 (en) | 1998-07-09 |
| BR9714450A (pt) | 2000-12-05 |
| AU5714998A (en) | 1998-07-31 |
| IL130731A0 (en) | 2000-06-01 |
| JP2001508354A (ja) | 2001-06-26 |
| HK1026034A1 (en) | 2000-12-01 |
| ES2160983T5 (es) | 2012-02-15 |
| JP4435307B2 (ja) | 2010-03-17 |
| PL334397A1 (en) | 2000-02-28 |
| RU99116247A (ru) | 2001-08-20 |
| IL130731A (en) | 2004-07-25 |
| NO316346B1 (no) | 2004-01-12 |
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