CA2357864C - Process for continuous cooking of pulp - Google Patents
Process for continuous cooking of pulp Download PDFInfo
- Publication number
- CA2357864C CA2357864C CA002357864A CA2357864A CA2357864C CA 2357864 C CA2357864 C CA 2357864C CA 002357864 A CA002357864 A CA 002357864A CA 2357864 A CA2357864 A CA 2357864A CA 2357864 C CA2357864 C CA 2357864C
- Authority
- CA
- Canada
- Prior art keywords
- digester
- cooking
- temperature
- pulp
- wash
- 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 - Fee Related
Links
- 238000010411 cooking Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 68
- 238000000605 extraction Methods 0.000 claims abstract description 25
- 239000002023 wood Substances 0.000 claims abstract description 25
- 239000000706 filtrate Substances 0.000 claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 238000011084 recovery Methods 0.000 claims description 16
- 239000013055 pulp slurry Substances 0.000 claims description 12
- 239000011121 hardwood Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000011122 softwood Substances 0.000 claims description 2
- 238000010790 dilution Methods 0.000 abstract description 26
- 239000012895 dilution Substances 0.000 abstract description 26
- 239000000463 material Substances 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 238000005470 impregnation Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012360 testing method 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
- D21C9/04—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in diffusers ; Washing of pulp of fluid consistency without substantially thickening
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/24—Continuous processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Noodles (AREA)
- Commercial Cooking Devices (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0004050A SE0004050L (sv) | 2000-11-03 | 2000-11-03 | Kontinuerlig kokning av massa med nettomedströmsflöde i kokarens bottenparti |
| SE0004050-1 | 2000-11-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2357864A1 CA2357864A1 (en) | 2002-05-03 |
| CA2357864C true CA2357864C (en) | 2009-05-19 |
Family
ID=20281710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002357864A Expired - Fee Related CA2357864C (en) | 2000-11-03 | 2001-09-27 | Process for continuous cooking of pulp |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6605180B2 (enExample) |
| EP (1) | EP1205597B1 (enExample) |
| JP (1) | JP4886950B2 (enExample) |
| AT (1) | ATE289641T1 (enExample) |
| BR (1) | BR0104884B1 (enExample) |
| CA (1) | CA2357864C (enExample) |
| DE (1) | DE60109007T2 (enExample) |
| PT (1) | PT1205597E (enExample) |
| SE (1) | SE0004050L (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE517674E8 (sv) * | 2001-05-02 | 2015-10-20 | Metso Paper Sweden Ab | Förfarande för tvättvätsketillförsel till kokningsprocess för cellulosamassa |
| SE526432C2 (sv) * | 2002-07-03 | 2005-09-13 | Kvaerner Pulping Tech | Metod och kokare för kontinuerlig kokning av vedråvara till cellulosamassa |
| US7168233B1 (en) * | 2005-12-12 | 2007-01-30 | General Electric Company | System for controlling steam temperature |
| US7771565B2 (en) * | 2006-02-21 | 2010-08-10 | Packaging Corporation Of America | Method of pre-treating woodchips prior to mechanical pulping |
| SE0702874L (sv) * | 2007-12-20 | 2009-06-09 | Metso Fiber Karlstad Ab | Förfarande vid tillverkning av sulfatmassa där hemicellulosor återförs |
| CA2728394C (en) * | 2008-06-26 | 2021-05-25 | Purdue Research Foundation | Locally-regulated pressurized pretreatment of lignocellulosic biomass |
| SE539501C2 (sv) * | 2014-10-31 | 2017-10-03 | Valmet Oy | Method and arrangement for discharge dilution |
| CN114277590B (zh) * | 2021-12-31 | 2023-05-26 | 郑州运达造纸设备有限公司 | 一种汽蒸仓防架桥槽体 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3303088A (en) * | 1963-04-19 | 1967-02-07 | Lummus Co | Continuous liquid-phase rapid pulping |
| US4123318A (en) * | 1976-06-29 | 1978-10-31 | Kamyr, Inc. | Three-vessel treatment system |
| SE452343B (sv) * | 1984-02-22 | 1987-11-23 | Billeruds Ab | Sett och utrustning vid kontinuerlig cellulosakokning |
| US5066362A (en) * | 1987-12-01 | 1991-11-19 | Kamyr, Inc. | Extended delignification in pressure diffusers |
| US4975148A (en) * | 1988-12-06 | 1990-12-04 | Ahlstromforetagen Svenska Ab | Cold blow system for batch production of pulp |
| US5203963A (en) * | 1991-10-21 | 1993-04-20 | A. Ahlstrom Corporation | Continuous treatment of small chips |
| SE501848C2 (sv) * | 1992-11-18 | 1995-06-06 | Kvaerner Pulping Tech | Metod att koka massa kontinuerligt vid konstant temperatur |
| SE500455C2 (sv) * | 1992-11-18 | 1994-06-27 | Kamyr Ab | Förfarande vid kontinuerlig kokning under förhöjt tryck och temperatur av fibermateral i en vertikal kokare |
| WO1994024362A1 (en) * | 1993-04-20 | 1994-10-27 | Kamyr Ab | Method of continuously cooking pulp |
| SE9400616L (sv) * | 1994-02-23 | 1995-01-23 | Kvaerner Pulping Tech | Omhändertagande av kvist vid kontinuerlig kokning |
| SE505528C2 (sv) * | 1995-04-28 | 1997-09-15 | Kvaerner Pulping Tech | Impregnering av flis med het svartlut i ett kontinuerligt enkärlssystem |
| US6123807A (en) * | 1997-02-18 | 2000-09-26 | Kvaerner Pulping Ab | Method for the continuous cooking of pulp |
-
2000
- 2000-11-03 SE SE0004050A patent/SE0004050L/ not_active IP Right Cessation
-
2001
- 2001-09-27 CA CA002357864A patent/CA2357864C/en not_active Expired - Fee Related
- 2001-09-28 US US09/967,346 patent/US6605180B2/en not_active Expired - Lifetime
- 2001-09-28 JP JP2001301920A patent/JP4886950B2/ja not_active Expired - Fee Related
- 2001-10-09 EP EP01203823A patent/EP1205597B1/en not_active Expired - Lifetime
- 2001-10-09 PT PT01203823T patent/PT1205597E/pt unknown
- 2001-10-09 AT AT01203823T patent/ATE289641T1/de active
- 2001-10-09 DE DE60109007T patent/DE60109007T2/de not_active Expired - Lifetime
- 2001-10-30 BR BRPI0104884-8A patent/BR0104884B1/pt not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE60109007D1 (de) | 2005-03-31 |
| JP4886950B2 (ja) | 2012-02-29 |
| CA2357864A1 (en) | 2002-05-03 |
| JP2002146690A (ja) | 2002-05-22 |
| SE515971C2 (sv) | 2001-11-05 |
| SE0004050L (sv) | 2001-11-05 |
| BR0104884A (pt) | 2002-06-25 |
| PT1205597E (pt) | 2005-07-29 |
| ATE289641T1 (de) | 2005-03-15 |
| BR0104884B1 (pt) | 2012-12-11 |
| EP1205597B1 (en) | 2005-02-23 |
| EP1205597A1 (en) | 2002-05-15 |
| DE60109007T2 (de) | 2006-04-06 |
| US20020079070A1 (en) | 2002-06-27 |
| SE0004050D0 (sv) | 2000-11-03 |
| US6605180B2 (en) | 2003-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20190927 |