CA2066181A1 - Displacement heating in continuous digesters - Google Patents
Displacement heating in continuous digestersInfo
- Publication number
- CA2066181A1 CA2066181A1 CA2066181A CA2066181A CA2066181A1 CA 2066181 A1 CA2066181 A1 CA 2066181A1 CA 2066181 A CA2066181 A CA 2066181A CA 2066181 A CA2066181 A CA 2066181A CA 2066181 A1 CA2066181 A1 CA 2066181A1
- Authority
- CA
- Canada
- Prior art keywords
- chamber
- chips
- black liquor
- pulp
- high temperature
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title abstract 2
- 238000006073 displacement reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 abstract 4
- 230000008569 process Effects 0.000 abstract 3
- 230000029087 digestion Effects 0.000 abstract 2
- 239000002023 wood Substances 0.000 abstract 2
- 239000003518 caustics Substances 0.000 abstract 1
- 238000010411 cooking Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 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
- D21C7/00—Digesters
- D21C7/14—Means for circulating the lye
-
- 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
- D21C7/00—Digesters
Landscapes
- Paper (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
An apparatus and method for treating cellulosic wood chips in a digestion process for the liberation of pulp in a caustic hydroxide solution at high pressures and temperatures by delivering preconditioned wood chips to a first chamber (10) and circu-lating a low temperature black liquor through the chamber (10) to preheat the chips, while continuosly feeding the chips through the chamber (10) to a second chamber (21) at high temperature and pressure, circulating high temperature black liquor to the chips in the second chamber (21) to advance them to cooking temperature, feeding white liquor and the chips to a digester (33) for the digestion process over a predetermined period of time, and removing digested pulp and delivering the pulp to a washer with the black liquor for washing being utilized for the first chamber (10), and heating the white liquor through a heat exchange pro-cess with the high temperature black liquor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41392089A | 1989-09-28 | 1989-09-28 | |
US413,920 | 1989-09-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2066181A1 true CA2066181A1 (en) | 1991-03-29 |
CA2066181C CA2066181C (en) | 1995-09-26 |
Family
ID=23639200
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002066181A Expired - Fee Related CA2066181C (en) | 1989-09-28 | 1990-09-25 | Displacement heating in continuous digesters |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0502852B1 (en) |
JP (1) | JPH0674557B2 (en) |
KR (1) | KR0171423B1 (en) |
CN (1) | CN1021980C (en) |
CA (1) | CA2066181C (en) |
DE (1) | DE69004438T2 (en) |
ES (1) | ES2045948T3 (en) |
FI (1) | FI921373A (en) |
NO (1) | NO179016C (en) |
WO (1) | WO1991005103A2 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69111165T2 (en) * | 1990-09-20 | 1995-11-16 | Kvaerner Pulping Tech | Soak with black liquor before adding the white liquor. |
US5302247A (en) * | 1992-11-02 | 1994-04-12 | Kamyr, Inc. | Top circulation line cooling for a modified cook digester |
CN1071997C (en) * | 1993-06-18 | 2001-10-03 | 叶隆清 | Plant growth accelerator and method for preparing same |
US5824187A (en) * | 1993-12-29 | 1998-10-20 | Kvaerner Pulping Ab | Method for the continuous cooking of pulp |
SE502039C2 (en) * | 1993-12-29 | 1995-07-24 | Kvaerner Pulping Tech | Methods and apparatus for continuous cooking of pulp |
US6248208B1 (en) | 1995-06-02 | 2001-06-19 | Andritz-Ahlstrom Inc. | Pretreatment of chips before cooking |
AT403301B (en) | 1996-04-04 | 1998-01-26 | Impco Voest Alpine Pulp Tech | CONTINUOUS LIQUID MANAGEMENT |
US6159336A (en) * | 1997-08-07 | 2000-12-12 | Kvaerner Pulping Ab | Method and device for the continuous cooking of pulp |
SE0104272L (en) | 2001-12-17 | 2002-11-12 | Kvaerner Pulping Tech | Process and arrangement for impregnating wood chips |
SE518957C2 (en) * | 2002-01-24 | 2002-12-10 | Kvaerner Pulping Tech | Process for increasing the heating economy of the boiler system during continuous boiling |
SE527058C2 (en) * | 2004-02-09 | 2005-12-13 | Kvaerner Pulping Tech | Continuous cooking process with improved heat economy |
US9567360B2 (en) * | 2010-07-07 | 2017-02-14 | Stora Enso Oyj | Process for production of precipitated lignin from black liquor and precipitated lignin produced by the process |
CN101906730B (en) * | 2010-07-15 | 2013-01-23 | 轻工业杭州机电设计研究院 | Non-wood fiber continuous cooking method and device |
CN102154398A (en) * | 2010-12-28 | 2011-08-17 | 国润金华(北京)国际能源投资有限公司佛山高明分公司 | High-temperature and high-pressure cellulose-to-sugar process |
CN103597139B (en) * | 2011-03-25 | 2016-03-30 | S·L·凯斯瓦尼 | For extracting the method and system of black liquor from transverse tube type continuous steamer |
CN102154874B (en) * | 2011-04-29 | 2012-11-21 | 白福安 | Replacement cooking pulping method |
CN102797189A (en) * | 2012-08-11 | 2012-11-28 | 李肥生 | Two-section self-heating helical-structure boiling separator |
US9644317B2 (en) * | 2014-11-26 | 2017-05-09 | International Paper Company | Continuous digester and feeding system |
FR3039567A1 (en) * | 2015-07-31 | 2017-02-03 | Commissariat Energie Atomique | DEVICE AND PROCESS FOR TREATING BLACK LIQUOR FROM THE PREPARATION OF PAPER PULP BY HYDROTHERMAL LIQUEFACTION |
CN108385430A (en) * | 2016-12-20 | 2018-08-10 | 常州爱上学教育科技有限公司 | Slurry made of the higher wood of intensity, bamboo raw material |
KR102295018B1 (en) | 2019-09-11 | 2021-08-30 | 한병엽 | Automatic ordering device for packaging container |
KR102490233B1 (en) | 2020-11-24 | 2023-01-18 | 한병엽 | Pos apparatus, method for processing order information of pos apparatus, recording medium |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI63610C (en) * | 1981-12-31 | 1983-07-11 | Ekono Oy | REQUIREMENTS FOR CONTAINER UPPSLUTNING AV FINFOERDELAT MATERIAL |
SE452482B (en) * | 1982-04-28 | 1987-11-30 | Sunds Defibrator | PROCEDURE FOR BATCH PREPARATION OF SULPHATE Pulp WITH HIGH DEGREE |
JPS6059189A (en) * | 1983-08-24 | 1985-04-05 | ベロイト コ−ポレ−ション | Multi-stage digestion of wood pulp |
FI71176C (en) * | 1983-11-30 | 1991-12-03 | Ekono Oy | Process for preparing cellulose with batch boiling |
-
1990
- 1990-09-25 DE DE90914988T patent/DE69004438T2/en not_active Expired - Fee Related
- 1990-09-25 KR KR1019920700696A patent/KR0171423B1/en not_active IP Right Cessation
- 1990-09-25 JP JP2514062A patent/JPH0674557B2/en not_active Expired - Lifetime
- 1990-09-25 ES ES90914988T patent/ES2045948T3/en not_active Expired - Lifetime
- 1990-09-25 EP EP90914988A patent/EP0502852B1/en not_active Expired - Lifetime
- 1990-09-25 CA CA002066181A patent/CA2066181C/en not_active Expired - Fee Related
- 1990-09-25 WO PCT/US1990/005443 patent/WO1991005103A2/en active IP Right Grant
- 1990-09-28 CN CN90108125A patent/CN1021980C/en not_active Expired - Fee Related
-
1992
- 1992-02-18 NO NO920630A patent/NO179016C/en unknown
- 1992-03-27 FI FI921373A patent/FI921373A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
NO920630D0 (en) | 1992-02-18 |
WO1991005103A3 (en) | 1991-05-16 |
KR0171423B1 (en) | 1999-05-01 |
FI921373A0 (en) | 1992-03-27 |
KR920703920A (en) | 1992-12-18 |
NO920630L (en) | 1992-02-18 |
NO179016B (en) | 1996-04-09 |
NO179016C (en) | 1996-07-17 |
CN1050579A (en) | 1991-04-10 |
DE69004438T2 (en) | 1994-05-11 |
WO1991005103A2 (en) | 1991-04-18 |
CA2066181C (en) | 1995-09-26 |
JPH0674557B2 (en) | 1994-09-21 |
FI921373A (en) | 1992-03-27 |
EP0502852B1 (en) | 1993-11-03 |
DE69004438D1 (en) | 1993-12-09 |
CN1021980C (en) | 1993-09-01 |
JPH05503739A (en) | 1993-06-17 |
ES2045948T3 (en) | 1994-01-16 |
EP0502852A1 (en) | 1992-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |