EP3947807A4 - A method and arrangement in a batch pulp production process - Google Patents
A method and arrangement in a batch pulp production process Download PDFInfo
- Publication number
- EP3947807A4 EP3947807A4 EP20782370.9A EP20782370A EP3947807A4 EP 3947807 A4 EP3947807 A4 EP 3947807A4 EP 20782370 A EP20782370 A EP 20782370A EP 3947807 A4 EP3947807 A4 EP 3947807A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- arrangement
- production process
- pulp production
- batch pulp
- batch
- 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.)
- Pending
Links
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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
-
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
-
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
-
- 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
- D21C9/008—Prevention of corrosion or formation of deposits on pulp-treating equipment
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P2201/00—Pretreatment of cellulosic or lignocellulosic material for subsequent enzymatic treatment or hydrolysis
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1950405A SE543924C2 (en) | 2019-04-02 | 2019-04-02 | A method for extracting hydrolysate in a batch pulp production process |
PCT/SE2020/050253 WO2020204780A1 (en) | 2019-04-02 | 2020-03-09 | A method and arrangement in a batch pulp production process |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3947807A1 EP3947807A1 (en) | 2022-02-09 |
EP3947807A4 true EP3947807A4 (en) | 2023-01-04 |
Family
ID=72667436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20782370.9A Pending EP3947807A4 (en) | 2019-04-02 | 2020-03-09 | A method and arrangement in a batch pulp production process |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP3947807A4 (en) |
CN (1) | CN113692464B (en) |
BR (1) | BR112021012894A2 (en) |
SE (1) | SE543924C2 (en) |
WO (1) | WO2020204780A1 (en) |
ZA (1) | ZA202104455B (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668340A (en) * | 1984-03-20 | 1987-05-26 | Kamyr, Inc. | Method of countercurrent acid hydrolysis of comminuted cellulosic fibrous material |
US6176971B1 (en) * | 1998-11-18 | 2001-01-23 | Andritz-Ahlstrom Inc. | Heat economy enhancements for the recovery and use of energy obtained from spent cooking liquors |
US20030032819A1 (en) * | 2001-08-07 | 2003-02-13 | Lightner Gene E. | Heterocyclic compounds produced from biomass |
EP1984562A1 (en) * | 2006-02-10 | 2008-10-29 | Metso Paper, Inc. | Method for recovering hydrolysis products |
WO2017088061A1 (en) * | 2015-11-25 | 2017-06-01 | Iogen Energy Corporation | System and method for cooling pretreated biomass |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT398588B (en) * | 1992-12-02 | 1994-12-27 | Voest Alpine Ind Anlagen | METHOD FOR THE PRODUCTION OF VISCOSE CELLS |
BR9902607B1 (en) * | 1999-06-23 | 2010-08-24 | biomass pre-hydrolysis apparatus and process. | |
US20090093028A1 (en) * | 2007-10-05 | 2009-04-09 | Joy Doran Peterson | Apparatus and methods for treating biomass |
FI123100B (en) * | 2010-03-11 | 2012-11-15 | Metso Paper Inc | Procedure for the collection of by-products |
IN2014DN09552A (en) * | 2012-05-17 | 2015-07-17 | Shell Int Research | |
CN103451987B (en) * | 2013-08-23 | 2015-10-28 | 湖南骏泰浆纸有限责任公司 | A kind of dissolving pulp pre-hydrolyzed solution extracting method and device |
BR112018010183B1 (en) * | 2016-02-16 | 2022-04-05 | Valmet Ab | Method to recover concentrated hydrolyzate after hydrolysis of lignocellulosic material |
-
2019
- 2019-04-02 SE SE1950405A patent/SE543924C2/en unknown
-
2020
- 2020-03-09 BR BR112021012894A patent/BR112021012894A2/en unknown
- 2020-03-09 WO PCT/SE2020/050253 patent/WO2020204780A1/en unknown
- 2020-03-09 CN CN202080025317.4A patent/CN113692464B/en active Active
- 2020-03-09 EP EP20782370.9A patent/EP3947807A4/en active Pending
-
2021
- 2021-06-28 ZA ZA2021/04455A patent/ZA202104455B/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4668340A (en) * | 1984-03-20 | 1987-05-26 | Kamyr, Inc. | Method of countercurrent acid hydrolysis of comminuted cellulosic fibrous material |
US6176971B1 (en) * | 1998-11-18 | 2001-01-23 | Andritz-Ahlstrom Inc. | Heat economy enhancements for the recovery and use of energy obtained from spent cooking liquors |
US20030032819A1 (en) * | 2001-08-07 | 2003-02-13 | Lightner Gene E. | Heterocyclic compounds produced from biomass |
EP1984562A1 (en) * | 2006-02-10 | 2008-10-29 | Metso Paper, Inc. | Method for recovering hydrolysis products |
WO2017088061A1 (en) * | 2015-11-25 | 2017-06-01 | Iogen Energy Corporation | System and method for cooling pretreated biomass |
Non-Patent Citations (1)
Title |
---|
See also references of WO2020204780A1 * |
Also Published As
Publication number | Publication date |
---|---|
SE1950405A1 (en) | 2020-10-03 |
WO2020204780A1 (en) | 2020-10-08 |
CN113692464B (en) | 2022-09-16 |
EP3947807A1 (en) | 2022-02-09 |
SE543924C2 (en) | 2021-09-28 |
ZA202104455B (en) | 2023-11-29 |
BR112021012894A2 (en) | 2021-11-09 |
CN113692464A (en) | 2021-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20211102 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20221207 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D21C 11/00 20060101ALI20221201BHEP Ipc: D21C 9/00 20060101ALI20221201BHEP Ipc: D21C 3/02 20060101ALI20221201BHEP Ipc: D21C 1/04 20060101ALI20221201BHEP Ipc: D21C 1/02 20060101AFI20221201BHEP |