FI20105243L - Förfarande för tillvaratagning av biprodukter - Google Patents

Förfarande för tillvaratagning av biprodukter Download PDF

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Publication number
FI20105243L
FI20105243L FI20105243A FI20105243A FI20105243L FI 20105243 L FI20105243 L FI 20105243L FI 20105243 A FI20105243 A FI 20105243A FI 20105243 A FI20105243 A FI 20105243A FI 20105243 L FI20105243 L FI 20105243L
Authority
FI
Finland
Prior art keywords
washing liquid
digester
products
recovery
hydrolysis step
Prior art date
Application number
FI20105243A
Other languages
English (en)
Finnish (fi)
Other versions
FI20105243A0 (sv
FI123100B (sv
Inventor
Lari Lammi
Original Assignee
Metso Paper Inc
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 Metso Paper Inc filed Critical Metso Paper Inc
Priority to FI20105243A priority Critical patent/FI123100B/sv
Publication of FI20105243A0 publication Critical patent/FI20105243A0/sv
Priority to CA2761757A priority patent/CA2761757C/en
Priority to CN201180002449.6A priority patent/CN102472006B/zh
Priority to PCT/FI2011/050206 priority patent/WO2011110746A1/en
Priority to EP11713494.0A priority patent/EP2430233B1/en
Publication of FI20105243L publication Critical patent/FI20105243L/sv
Application granted granted Critical
Publication of FI123100B publication Critical patent/FI123100B/sv

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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
    • 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
    • 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters

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  • Paper (AREA)

Abstract

Ett förfarande för produktion av massa beskrivs. Mera bestämt avser uppfinningen en satsvis förträngningskokprocess omfattande ett ångfas-förhydrolyssteg, vari tillvaratagandet av biprodukterna förbättras. I tillvaratagningssteget enligt den föreliggande uppfinningen införs het tvättvätska i kokaren från dess botten, efter det att den eftersträvade P-faktorn är uppnådd i förhydrolyssteget,. Tvättvätskan cirkuleras via sugsilarna till den övre delen och till bottnen av kokaren till dess att den förhydrolyserade flisen är under tvättvätskan. Den heta tvättvätskan, som innehåller biprodukter, tillvaratas från kokaren och kokarinnehållet neutraliseras genom att förtränga tvättvätskan med alkalisk lut.
FI20105243A 2010-03-11 2010-03-11 Förfarande för tillvaratagning av biprodukter FI123100B (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI20105243A FI123100B (sv) 2010-03-11 2010-03-11 Förfarande för tillvaratagning av biprodukter
CA2761757A CA2761757C (en) 2010-03-11 2011-03-10 Method for producing pulp
CN201180002449.6A CN102472006B (zh) 2010-03-11 2011-03-10 生产纸浆的方法
PCT/FI2011/050206 WO2011110746A1 (en) 2010-03-11 2011-03-10 Method for producing pulp
EP11713494.0A EP2430233B1 (en) 2010-03-11 2011-03-10 Method for producing pulp

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20105243A FI123100B (sv) 2010-03-11 2010-03-11 Förfarande för tillvaratagning av biprodukter
FI20105243 2010-03-11

Publications (3)

Publication Number Publication Date
FI20105243A0 FI20105243A0 (sv) 2010-03-11
FI20105243L true FI20105243L (sv) 2011-09-12
FI123100B FI123100B (sv) 2012-11-15

Family

ID=42074359

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20105243A FI123100B (sv) 2010-03-11 2010-03-11 Förfarande för tillvaratagning av biprodukter

Country Status (5)

Country Link
EP (1) EP2430233B1 (sv)
CN (1) CN102472006B (sv)
CA (1) CA2761757C (sv)
FI (1) FI123100B (sv)
WO (1) WO2011110746A1 (sv)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102337693B (zh) * 2011-09-30 2014-01-22 重庆理文造纸有限公司 一种溶解浆的蒸煮及洗涤工艺
SE539706C2 (sv) 2014-11-07 2017-11-07 Valmet Oy Method for recovering hydrolysate
SE538454C2 (sv) 2014-11-27 2016-07-12 Valmet Oy Method for displacement in batch digesters
EP3176320A1 (en) 2015-12-03 2017-06-07 Valmet AB Process to produce a bio-product
BR112018010183B1 (pt) * 2016-02-16 2022-04-05 Valmet Ab Método para recuperar hidrolisado concentrado após hidrólise de material lignocelulósico
SE540305C2 (sv) * 2017-02-07 2018-06-05 Valmet Oy System and method for silica removal in a pulping process
CN109759965B (zh) * 2019-01-28 2020-11-24 江苏启航研磨科技有限公司 一种高柔韧性高硬度砂纸的制备方法
SE1950402A1 (sv) 2019-04-01 2020-10-02 Valmet Oy Method for extracting hemicellulose from lignocellulosic material
SE543924C2 (en) * 2019-04-02 2021-09-28 Valmet Oy A method for extracting hydrolysate in a batch pulp production process
SE1950606A1 (sv) * 2019-05-22 2020-10-13 Valmet Oy A method for extracting hydrolysate, a batch cooking system and a hydrolysate extracting arrangement
SE1950785A1 (sv) * 2019-06-26 2020-11-03 Valmet Oy Method for extracting hemicellulose from lignocellulosic material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5788812A (en) * 1985-11-05 1998-08-04 Agar; Richard C. Method of recovering furfural from organic pulping liquor
EP0746650A4 (en) * 1992-01-29 1998-01-07 Alcell Tech Inc REDUCTION OF FIBROUS PLANT MATERIALS AND RECOVERY OF RESULTING BY-PRODUCTS
ATE277222T1 (de) * 1999-02-15 2004-10-15 Kiram Ab Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien
FI123036B (sv) 2006-02-10 2012-10-15 Metso Paper Inc Förfarande för tillvaratagande av hydrolysprodukter
FI20065105A0 (sv) * 2006-02-10 2006-02-10 Metso Paper Inc Förfarande för tillvaratagande av hydrolysprodukter

Also Published As

Publication number Publication date
EP2430233A1 (en) 2012-03-21
FI20105243A0 (sv) 2010-03-11
EP2430233B1 (en) 2013-05-08
FI123100B (sv) 2012-11-15
CA2761757C (en) 2017-10-10
CN102472006B (zh) 2014-10-22
CN102472006A (zh) 2012-05-23
WO2011110746A1 (en) 2011-09-15
CA2761757A1 (en) 2011-09-15

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