NZ585470A - Controlling an electrolysis cell using non-linear prediction model of process variables - Google Patents
Controlling an electrolysis cell using non-linear prediction model of process variablesInfo
- Publication number
- NZ585470A NZ585470A NZ585470A NZ58547008A NZ585470A NZ 585470 A NZ585470 A NZ 585470A NZ 585470 A NZ585470 A NZ 585470A NZ 58547008 A NZ58547008 A NZ 58547008A NZ 585470 A NZ585470 A NZ 585470A
- Authority
- NZ
- New Zealand
- Prior art keywords
- accordance
- future
- process variable
- prediction
- control
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 200
- 230000008569 process Effects 0.000 title claims abstract description 169
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 49
- 239000004411 aluminium Substances 0.000 claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000004364 calculation method Methods 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000005312 nonlinear dynamic Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 58
- 238000004886 process control Methods 0.000 claims description 23
- 230000006870 function Effects 0.000 claims description 14
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminium flouride Chemical compound F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 67
- 229910052593 corundum Inorganic materials 0.000 description 19
- 229910001845 yogo sapphire Inorganic materials 0.000 description 19
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 238000007792 addition Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 230000006399 behavior Effects 0.000 description 8
- 230000009467 reduction Effects 0.000 description 8
- 239000007788 liquid Substances 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 5
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 5
- 238000004422 calculation algorithm Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 4
- 229910001634 calcium fluoride Inorganic materials 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000013178 mathematical model Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 229910001610 cryolite Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005201 scrubbing Methods 0.000 description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 3
- 238000009626 Hall-Héroult process Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000004540 process dynamic Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000012369 In process control Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- -1 bath height Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000010965 in-process control Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/20—Automatic control or regulation of cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
- Feedback Control In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO20075933A NO328080B1 (no) | 2007-11-19 | 2007-11-19 | Fremgangsmate og anordning for styring av en elektrolysecelle |
| PCT/NO2008/000402 WO2009067019A1 (en) | 2007-11-19 | 2008-11-12 | Method and means for controlling an electrolysis cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NZ585470A true NZ585470A (en) | 2012-05-25 |
Family
ID=40667707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NZ585470A NZ585470A (en) | 2007-11-19 | 2008-11-12 | Controlling an electrolysis cell using non-linear prediction model of process variables |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP2212751B1 (zh) |
| CN (1) | CN101868765B (zh) |
| AR (1) | AR069355A1 (zh) |
| AU (1) | AU2008326931B2 (zh) |
| BR (1) | BRPI0820426A2 (zh) |
| CA (1) | CA2704551C (zh) |
| EA (1) | EA018248B1 (zh) |
| NO (1) | NO328080B1 (zh) |
| NZ (1) | NZ585470A (zh) |
| WO (1) | WO2009067019A1 (zh) |
| ZA (1) | ZA201003134B (zh) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1401233B1 (it) * | 2010-07-14 | 2013-07-12 | Danieli Automation Spa | Dispositivo per la rilevazione di livello in una attrezzatura di colata e relativo procedimento di rilevazione. |
| US9121104B2 (en) | 2011-01-31 | 2015-09-01 | Alcoa Inc. | Systems and methods for determining alumina properties |
| US20130024179A1 (en) * | 2011-07-22 | 2013-01-24 | General Electric Company | Model-based approach for personalized equipment degradation forecasting |
| GB201602613D0 (en) * | 2016-02-15 | 2016-03-30 | Dubai Aluminium Pjsc And Newsouth Innovations Pty Ltd | Method for estimating dynamic state variables in an electrolytic cell suitable for the Hall-Héroult electrolysis process |
| CA3033192C (en) * | 2016-08-12 | 2023-06-06 | Boston Electrometallurgical Corporation | Leak free current collector assemblage for metallurgical vessel and methods of manufacture |
| US9996074B2 (en) | 2016-09-21 | 2018-06-12 | International Business Machines Corporation | System and predictive modeling method for smelting process control based on multi-source information with heterogeneous relatedness |
| NO20181482A1 (en) * | 2018-11-20 | 2020-05-21 | Norsk Hydro As | Method and system for controlling suction of off-gases from electrolysis cells |
| WO2020190271A1 (en) * | 2019-03-16 | 2020-09-24 | General Electric Company | System and method for controlling of smelting pot line |
| CN112239873B (zh) * | 2019-07-19 | 2021-10-01 | 郑州轻冶科技股份有限公司 | 一种铝电解工艺参数优化方法以及铝电解槽组 |
| CN114123238B (zh) * | 2021-11-12 | 2023-09-22 | 国网江苏省电力有限公司营销服务中心 | 一种电解铝负荷参与电力系统调频的卡尔曼滤波控制方法 |
| EP4198655A1 (en) * | 2021-12-16 | 2023-06-21 | Abb Schweiz Ag | Establishing or improving a simulation model of an electrolyzer plant |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO166821C (no) | 1985-02-21 | 1991-09-04 | Aardal & Sunndal Verk As | Fremgangsmaate for styring av aluminiumoksyd-tilfoerselen til elektrolyseovner for fremstilling av aluminium. |
| US4814050A (en) | 1986-10-06 | 1989-03-21 | Aluminum Company Of America | Estimation and control of alumina concentration in hall cells |
| CA2230564A1 (en) * | 1995-09-01 | 1997-03-13 | Auckland Uniservices Limited | Measurement of alumina in reduction pots |
| FR2749858B1 (fr) * | 1996-06-17 | 1998-07-24 | Pechiney Aluminium | Procede de regulation de la teneur en alumine du bain des cuves d'electrolyse pour la production d'aluminium |
| CA2230882C (en) | 1997-03-14 | 2004-08-17 | Dubai Aluminium Company Limited | Intelligent control of aluminium reduction cells using predictive and pattern recognition techniques |
| US6757579B1 (en) | 2001-09-13 | 2004-06-29 | Advanced Micro Devices, Inc. | Kalman filter state estimation for a manufacturing system |
| US7272454B2 (en) * | 2003-06-05 | 2007-09-18 | Fisher-Rosemount Systems, Inc. | Multiple-input/multiple-output control blocks with non-linear predictive capabilities |
| US20070225835A1 (en) * | 2006-03-23 | 2007-09-27 | Yucai Zhu | Computer method and apparatus for adaptive model predictive control |
-
2007
- 2007-11-19 NO NO20075933A patent/NO328080B1/no unknown
-
2008
- 2008-11-12 WO PCT/NO2008/000402 patent/WO2009067019A1/en active Application Filing
- 2008-11-12 CA CA2704551A patent/CA2704551C/en active Active
- 2008-11-12 EP EP08852151.3A patent/EP2212751B1/en active Active
- 2008-11-12 AU AU2008326931A patent/AU2008326931B2/en active Active
- 2008-11-12 EA EA201000833A patent/EA018248B1/ru not_active IP Right Cessation
- 2008-11-12 NZ NZ585470A patent/NZ585470A/en unknown
- 2008-11-12 CN CN200880116702.9A patent/CN101868765B/zh active Active
- 2008-11-12 BR BRPI0820426-8A patent/BRPI0820426A2/pt not_active Application Discontinuation
- 2008-11-18 AR ARP080105014 patent/AR069355A1/es active IP Right Grant
-
2010
- 2010-05-04 ZA ZA2010/03134A patent/ZA201003134B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009067019A1 (en) | 2009-05-28 |
| EP2212751A4 (en) | 2013-01-23 |
| BRPI0820426A2 (pt) | 2015-05-19 |
| AR069355A1 (es) | 2010-01-13 |
| AU2008326931B2 (en) | 2013-01-10 |
| CN101868765B (zh) | 2014-07-09 |
| EP2212751B1 (en) | 2018-07-04 |
| CA2704551A1 (en) | 2009-05-28 |
| EP2212751A1 (en) | 2010-08-04 |
| NO20075933L (no) | 2009-05-20 |
| NO328080B1 (no) | 2009-11-30 |
| CA2704551C (en) | 2016-08-23 |
| EA018248B1 (ru) | 2013-06-28 |
| CN101868765A (zh) | 2010-10-20 |
| ZA201003134B (en) | 2011-04-28 |
| EA201000833A1 (ru) | 2010-12-30 |
| AU2008326931A1 (en) | 2009-05-28 |
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Legal Events
| Date | Code | Title | Description |
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