EP3947808A4 - METHOD AND ARRANGEMENT IN A CONTINUOUS PULP PRODUCTION PROCESS - Google Patents

METHOD AND ARRANGEMENT IN A CONTINUOUS PULP PRODUCTION PROCESS Download PDF

Info

Publication number
EP3947808A4
EP3947808A4 EP20782621.5A EP20782621A EP3947808A4 EP 3947808 A4 EP3947808 A4 EP 3947808A4 EP 20782621 A EP20782621 A EP 20782621A EP 3947808 A4 EP3947808 A4 EP 3947808A4
Authority
EP
European Patent Office
Prior art keywords
arrangement
production process
pulp production
continuous pulp
continuous
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
Application number
EP20782621.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3947808A1 (en
Inventor
Lari Lammi
Magnus Hägglund
Hunphrey LANDMAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valmet Technologies Oy
Valmet AB
Original Assignee
Valmet Oy
Valmet AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valmet Oy, Valmet AB filed Critical Valmet Oy
Publication of EP3947808A1 publication Critical patent/EP3947808A1/en
Publication of EP3947808A4 publication Critical patent/EP3947808A4/en
Pending legal-status Critical Current

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
    • D21C7/00—Digesters
    • 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
    • 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
    • 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
    • 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
    • D21C7/08—Discharge devices
    • 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
    • D21C7/12—Devices for regulating or controlling
    • 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
EP20782621.5A 2019-03-29 2020-03-18 METHOD AND ARRANGEMENT IN A CONTINUOUS PULP PRODUCTION PROCESS Pending EP3947808A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1950386A SE542991C2 (en) 2019-03-29 2019-03-29 A method and a system for extracting hydrolyzate in a continuous cooking process for producing pulp
PCT/SE2020/050285 WO2020204783A1 (en) 2019-03-29 2020-03-18 A method and arrangement in a continuous pulp production process

Publications (2)

Publication Number Publication Date
EP3947808A1 EP3947808A1 (en) 2022-02-09
EP3947808A4 true EP3947808A4 (en) 2022-12-28

Family

ID=72513416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20782621.5A Pending EP3947808A4 (en) 2019-03-29 2020-03-18 METHOD AND ARRANGEMENT IN A CONTINUOUS PULP PRODUCTION PROCESS

Country Status (6)

Country Link
EP (1) EP3947808A4 (zh)
CN (1) CN113646481B (zh)
BR (1) BR112021013052A2 (zh)
SE (1) SE542991C2 (zh)
WO (1) WO2020204783A1 (zh)
ZA (1) ZA202104457B (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530034A (en) * 1969-05-16 1970-09-22 Itt Rayonier Inc Continuous aqueous prehydrolysis of wood chips
JP2012000022A (ja) * 2010-06-15 2012-01-05 Tsukishima Kikai Co Ltd バイオマスの処理装置及び処理方法
WO2016112203A1 (en) * 2015-01-07 2016-07-14 Andritz Inc. System and method for monitoring and control of multiple processing zones within pressurized vessels
WO2019009792A1 (en) * 2017-07-04 2019-01-10 Valmet Ab PROCESS FOR OPERATING A CONTINUOUS VERTICAL REACTOR COMPRISING A PRE-HYDROLYSIS AREA AND REACTOR DESIGN AS SUCH

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4436586A (en) * 1982-01-22 1984-03-13 Kamyr, Inc. Method of producing kraft pulp using an acid prehydrolysis and pre-extraction
US20070131363A1 (en) * 2005-10-24 2007-06-14 Andritz Inc. Fiberline systems, processes and methods
BRPI0505212A (pt) * 2005-11-01 2007-08-07 Dedini Sa Ind De Base aperfeiçoamentos em processo de hidrólise ácida rápida de material lignocelulósico e em reator de hidrólise
FI123036B (fi) * 2006-02-10 2012-10-15 Metso Paper Inc Menetelmä hydrolyysituotteiden talteenottamiseksi
US9260818B2 (en) * 2007-05-23 2016-02-16 Andritz Inc. Single vessel reactor system for hydrolysis and digestion of wood chips with chemical enhanced wash method
US8734610B2 (en) * 2007-05-23 2014-05-27 Andritz Inc. Two vessel reactor system and method for hydrolysis and digestion of wood chips with chemical enhanced wash method
EP2212467B1 (en) * 2007-11-01 2014-06-11 Eau-Viron Incorporated Methods and apparatus for hydrolyzing cellulosic material
US8192549B2 (en) 2008-06-10 2012-06-05 Andritz Inc. Apparatus and method for hydrolysis of cellulosic material in a two-step process
EP2707539B1 (en) * 2011-05-13 2019-05-08 Valmet Aktiebolag Compact process for producing prehydrolyzed pulp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530034A (en) * 1969-05-16 1970-09-22 Itt Rayonier Inc Continuous aqueous prehydrolysis of wood chips
JP2012000022A (ja) * 2010-06-15 2012-01-05 Tsukishima Kikai Co Ltd バイオマスの処理装置及び処理方法
WO2016112203A1 (en) * 2015-01-07 2016-07-14 Andritz Inc. System and method for monitoring and control of multiple processing zones within pressurized vessels
WO2019009792A1 (en) * 2017-07-04 2019-01-10 Valmet Ab PROCESS FOR OPERATING A CONTINUOUS VERTICAL REACTOR COMPRISING A PRE-HYDROLYSIS AREA AND REACTOR DESIGN AS SUCH

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020204783A1 *

Also Published As

Publication number Publication date
SE1950386A1 (en) 2020-09-22
ZA202104457B (en) 2023-01-25
EP3947808A1 (en) 2022-02-09
SE542991C2 (en) 2020-09-22
CN113646481B (zh) 2022-11-22
CN113646481A (zh) 2021-11-12
BR112021013052A2 (pt) 2021-10-26
WO2020204783A1 (en) 2020-10-08

Similar Documents

Publication Publication Date Title
EP3919680A4 (en) PULP MOLDING PRODUCTION LINE AND ASSOCIATED TREATMENT PROCESS
RS64718B1 (sr) Postupak za proizvodnju proizvoda od celuloze i proizvod od celuloze
EP3973055A4 (en) COMPOSITE MATERIAL AND METHOD OF MANUFACTURE THEREOF
EP4001487A4 (en) FIBER STRUCTURE AND MANUFACTURING METHOD THEREOF
EP4116095A4 (en) DECORATIVE SHEET AND METHOD FOR PRODUCING DECORATIVE SHEET
EP4004286A4 (en) SHAPED FIBER PRODUCT AND METHOD OF PRODUCTION THEREOF
EP3819731A4 (en) PRODUCTION LINE AND MANUFACTURING PROCESS FOR PRODUCTION LINE
EP3960810A4 (en) COMPOSITE OF CELLULOSE NANOCRYSTALS AND METHOD FOR PRODUCTION
EP3950711A4 (en) CELL CONSTRUCT AND METHODS OF PRODUCTION
EP3647012A4 (en) COMPOSITE MATERIAL MANUFACTURING PROCESS AND COMPOSITE MATERIAL
EP3967784A4 (en) ALLOY MATERIAL AND MANUFACTURING METHOD THEREOF
EP4010158C0 (de) Werkstoffplatte und verfahren zur herstellung einer werkstoffplatte
PL3994109T3 (pl) Materiał izolacyjny i sposób jego wytwarzania
EP3984968A4 (en) METHOD FOR PRODUCTION OF INORGANIC MATERIAL AND APPARATUS FOR PRODUCTION OF INORGANIC MATERIAL
EP3890956A4 (en) MOLDABLE FIBROUS SHEET AND METHOD FOR PRODUCING IT
EP4020713A4 (en) DIELECTRIC MATERIAL AND METHOD FOR PRODUCING A DIELECTRIC MATERIAL
EP3978900A4 (en) METHOD AND DEVICE FOR EVALUATION OF COMPOSITES AND COMPOSITE
EP3950297A4 (en) DECORATIVE MATERIAL AND METHOD OF PRODUCTION THEREOF
EP3922602A4 (en) AIRGEL AND ITS PRODUCTION PROCESS
EP3874957A4 (en) RESISTANT STARCH AND METHOD FOR PRODUCTION
EP3947808A4 (en) METHOD AND ARRANGEMENT IN A CONTINUOUS PULP PRODUCTION PROCESS
EP3727772A4 (en) MODIFIED WOOD PRODUCT AND METHOD OF MANUFACTURE OF SAID PRODUCT
EP4194609A4 (en) FIBER WEB PRODUCT AND PRODUCTION PROCESS THEREOF
EP4005788A4 (en) METHOD FOR PRODUCTION OF FORMED PRODUCT AND COMPOSITE MATERIAL
EP3947807A4 (en) METHOD AND ARRANGEMENT IN A BATCH DOUGH PRODUCTION METHOD

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: 20211029

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: 20221130

RIC1 Information provided on ipc code assigned before grant

Ipc: D21C 11/00 20060101ALI20221124BHEP

Ipc: C12M 1/00 20060101ALI20221124BHEP

Ipc: D21C 7/12 20060101ALI20221124BHEP

Ipc: D21C 3/24 20060101ALI20221124BHEP

Ipc: D21C 1/04 20060101ALI20221124BHEP

Ipc: D21C 1/02 20060101AFI20221124BHEP