CA2447098A1 - Methode d'estimation du dosage optimal d'agent de blanchiment a melanger a des copeaux de bois - Google Patents
Methode d'estimation du dosage optimal d'agent de blanchiment a melanger a des copeaux de bois Download PDFInfo
- Publication number
- CA2447098A1 CA2447098A1 CA002447098A CA2447098A CA2447098A1 CA 2447098 A1 CA2447098 A1 CA 2447098A1 CA 002447098 A CA002447098 A CA 002447098A CA 2447098 A CA2447098 A CA 2447098A CA 2447098 A1 CA2447098 A1 CA 2447098A1
- Authority
- CA
- Canada
- Prior art keywords
- value
- bleaching agent
- brightness
- dosage
- wood chips
- 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.)
- Abandoned
Links
- 239000002023 wood Substances 0.000 title claims abstract description 39
- 239000007844 bleaching agent Substances 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000013528 artificial neural network Methods 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 19
- 238000005457 optimization Methods 0.000 abstract description 5
- 150000002978 peroxides Chemical class 0.000 description 22
- 238000012360 testing method Methods 0.000 description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 13
- 238000004061 bleaching Methods 0.000 description 12
- 238000012549 training Methods 0.000 description 9
- 244000283070 Abies balsamea Species 0.000 description 8
- 235000007173 Abies balsamea Nutrition 0.000 description 8
- 235000004710 Abies lasiocarpa Nutrition 0.000 description 8
- 230000000875 corresponding effect Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- 230000001419 dependent effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- 241000218657 Picea Species 0.000 description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 239000004115 Sodium Silicate Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 238000004537 pulping Methods 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- 241000894007 species Species 0.000 description 4
- 240000009002 Picea mariana Species 0.000 description 3
- 235000017997 Picea mariana var. mariana Nutrition 0.000 description 3
- 235000018000 Picea mariana var. semiprostrata Nutrition 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000003062 neural network model Methods 0.000 description 3
- -1 perhydroxyl ion Chemical class 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 235000008565 Pinus banksiana Nutrition 0.000 description 2
- 241000218680 Pinus banksiana Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 210000002569 neuron Anatomy 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 244000274847 Betula papyrifera Species 0.000 description 1
- 235000009113 Betula papyrifera Nutrition 0.000 description 1
- 235000009109 Betula pendula Nutrition 0.000 description 1
- 235000010928 Betula populifolia Nutrition 0.000 description 1
- 235000002992 Betula pubescens Nutrition 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000536565 Disteganthus basilateralis Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical class OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 238000004801 process automation Methods 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1052—Controlling the process
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002447098A CA2447098A1 (fr) | 2003-10-28 | 2003-10-28 | Methode d'estimation du dosage optimal d'agent de blanchiment a melanger a des copeaux de bois |
| CA002543781A CA2543781A1 (fr) | 2003-10-28 | 2004-10-28 | Procede et dispositif permettant l'estimation du dosage optimal d'agent de blanchiment pour un procede de production de pate a papier |
| PCT/CA2004/001888 WO2005042832A1 (fr) | 2003-10-28 | 2004-10-28 | Procede et dispositif permettant l'estimation du dosage optimal d'agent de blanchiment pour un procede de production de pate a papier |
| US10/577,434 US20070158040A1 (en) | 2003-10-28 | 2004-10-28 | Method and apparatus for estimating an optimal dosage of bleaching agent to be used in a process for producing pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002447098A CA2447098A1 (fr) | 2003-10-28 | 2003-10-28 | Methode d'estimation du dosage optimal d'agent de blanchiment a melanger a des copeaux de bois |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2447098A1 true CA2447098A1 (fr) | 2005-04-28 |
Family
ID=34468733
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002447098A Abandoned CA2447098A1 (fr) | 2003-10-28 | 2003-10-28 | Methode d'estimation du dosage optimal d'agent de blanchiment a melanger a des copeaux de bois |
| CA002543781A Abandoned CA2543781A1 (fr) | 2003-10-28 | 2004-10-28 | Procede et dispositif permettant l'estimation du dosage optimal d'agent de blanchiment pour un procede de production de pate a papier |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002543781A Abandoned CA2543781A1 (fr) | 2003-10-28 | 2004-10-28 | Procede et dispositif permettant l'estimation du dosage optimal d'agent de blanchiment pour un procede de production de pate a papier |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20070158040A1 (fr) |
| CA (2) | CA2447098A1 (fr) |
| WO (1) | WO2005042832A1 (fr) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI346849B (en) * | 2003-12-05 | 2011-08-11 | Saurer Gmbh & Co Kg | Method and apparatus for order control in a production process for a fibre product |
| CN101790610A (zh) * | 2007-05-04 | 2010-07-28 | 魁北克工业研究中心 | 用于优化木质纤维素颗粒物质磨浆的系统和方法 |
| CA2714235C (fr) | 2010-04-27 | 2014-01-07 | Centre De Recherche Industrielle Du Quebec | Procede et systeme pour stabiliser la densite seche des copeaux de bois devant alimenter un processus de raffinage des copeaux |
| US8626791B1 (en) * | 2011-06-14 | 2014-01-07 | Google Inc. | Predictive model caching |
| JP6079542B2 (ja) * | 2013-10-04 | 2017-02-15 | 王子ホールディングス株式会社 | パルプ白色度の推定装置およびその推定方法 |
| JP7049211B2 (ja) * | 2018-08-07 | 2022-04-06 | 株式会社キーエンス | データ分析装置及びデータ分析方法 |
| JP7049210B2 (ja) * | 2018-08-07 | 2022-04-06 | 株式会社キーエンス | データ分析装置及びデータ分析方法 |
| EP3924732A4 (fr) * | 2019-02-15 | 2022-10-05 | Event Capture Systems, Inc. | Procédé en ligne permettant la détermination de normes de qualité de copeaux de bois entrants dans un broyeur à papier |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4013506A (en) * | 1974-07-22 | 1977-03-22 | Canadian International Paper Company | Method and apparatus for automatically and simultaneously controlling solution viscosity and brightness of a pulp during multi-stage bleaching |
| US6153300A (en) * | 1994-04-18 | 2000-11-28 | Ahlstrom Machinery, Inc. | Bleaching cellulose pulp having cleanliness which varies significantly over time using at least two different bleaching stages and bleaching chemicals |
| US6879971B1 (en) * | 1995-12-22 | 2005-04-12 | Pavilion Technologies, Inc. | Automated method for building a model |
| CA2228023A1 (fr) * | 1998-01-23 | 1999-07-23 | Centre De Recherche Industrielle Du Quebec | Methode et appareil pour le classement de lots de copeaux de bois ou articles connexes . |
| US6273994B1 (en) * | 1998-01-30 | 2001-08-14 | Iogen Corporation | Method and device for measuring bleach requirement, bleachability, and effectivenss of hemicellulase enzyme treatment of pulp |
| US6153050A (en) * | 1998-03-24 | 2000-11-28 | Noranda Forest Inc. | Method and system for controlling the addition of bleaching reagents to obtain a substantially constant percentage of pulp delignification across the first bleaching/delignifying stage |
| US6901300B2 (en) * | 2002-02-07 | 2005-05-31 | Fisher-Rosemount Systems, Inc.. | Adaptation of advanced process control blocks in response to variable process delay |
-
2003
- 2003-10-28 CA CA002447098A patent/CA2447098A1/fr not_active Abandoned
-
2004
- 2004-10-28 CA CA002543781A patent/CA2543781A1/fr not_active Abandoned
- 2004-10-28 US US10/577,434 patent/US20070158040A1/en not_active Abandoned
- 2004-10-28 WO PCT/CA2004/001888 patent/WO2005042832A1/fr active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| CA2543781A1 (fr) | 2005-05-12 |
| US20070158040A1 (en) | 2007-07-12 |
| WO2005042832A1 (fr) | 2005-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |