SE539449C2 - Method for heating cellulosic material to full cooking temperature in digesters - Google Patents

Method for heating cellulosic material to full cooking temperature in digesters Download PDF

Info

Publication number
SE539449C2
SE539449C2 SE1551483A SE1551483A SE539449C2 SE 539449 C2 SE539449 C2 SE 539449C2 SE 1551483 A SE1551483 A SE 1551483A SE 1551483 A SE1551483 A SE 1551483A SE 539449 C2 SE539449 C2 SE 539449C2
Authority
SE
Sweden
Prior art keywords
digester
steam
liquor
heated
heating
Prior art date
Application number
SE1551483A
Other languages
English (en)
Swedish (sv)
Other versions
SE1551483A1 (en
Inventor
Olsson Krister
Original Assignee
Valmet Oy
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 filed Critical Valmet Oy
Priority to SE1551483A priority Critical patent/SE539449C2/en
Priority to PCT/SE2016/051013 priority patent/WO2017086856A1/en
Priority to EP16866744.2A priority patent/EP3377696A4/de
Publication of SE1551483A1 publication Critical patent/SE1551483A1/en
Publication of SE539449C2 publication Critical patent/SE539449C2/en

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
    • D21C7/10—Heating 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/10—Concentrating spent liquor by evaporation
    • 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
    • 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
    • D21C7/14—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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0085—Introduction of auxiliary substances into the regenerating system in order to improve the performance of certain steps of the latter, the presence of these substances being confined to the regeneration cycle
    • D21C11/0092—Substances modifying the evaporation, combustion, or thermal decomposition processes of black liquor
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Control Of Turbines (AREA)
SE1551483A 2015-11-16 2015-11-16 Method for heating cellulosic material to full cooking temperature in digesters SE539449C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE1551483A SE539449C2 (en) 2015-11-16 2015-11-16 Method for heating cellulosic material to full cooking temperature in digesters
PCT/SE2016/051013 WO2017086856A1 (en) 2015-11-16 2016-10-18 Method for heating cellulosic material to full cooking temperature in digesters
EP16866744.2A EP3377696A4 (de) 2015-11-16 2016-10-18 Verfahren zur erwärmung von cellulosematerial auf volle kochtemperatur in zellstoffkochern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1551483A SE539449C2 (en) 2015-11-16 2015-11-16 Method for heating cellulosic material to full cooking temperature in digesters

Publications (2)

Publication Number Publication Date
SE1551483A1 SE1551483A1 (en) 2017-05-17
SE539449C2 true SE539449C2 (en) 2017-09-26

Family

ID=58719098

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1551483A SE539449C2 (en) 2015-11-16 2015-11-16 Method for heating cellulosic material to full cooking temperature in digesters

Country Status (3)

Country Link
EP (1) EP3377696A4 (de)
SE (1) SE539449C2 (de)
WO (1) WO2017086856A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE545465C2 (en) * 2019-12-02 2023-09-19 Valmet Oy Method and arrangement for adding treatment liquors to cellulose raw material in a continuous process using down flow vessels

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1097465A (en) * 1976-11-30 1981-03-17 James R. Prough Black liquor energy recovery
SE453673B (sv) * 1985-07-02 1988-02-22 Kamyr Ab Sett vid kontinuerlig kokning for uppvermning av fibermaterialet vid kokarens topp
US4897157A (en) * 1986-07-08 1990-01-30 Kamyr, Inc. Make-up liquor and black liquor evaporating processing during pulp production
US5213662A (en) * 1991-08-14 1993-05-25 Kamyr, Inc. Treatment of chips with high temperature black liquor to reduce black liquor viscosity
US6306252B1 (en) * 1995-04-10 2001-10-23 Andritz-Ahlstrom Inc. Heat recovery from spent digester cooking liquor
JP2005256224A (ja) * 2004-03-12 2005-09-22 Daio Paper Corp 塔状ベッセル型連続蒸解釜による蒸解方法
FI120547B (fi) * 2004-10-04 2009-11-30 Metso Paper Inc Alkalinen keittomenetelmä ja laitteisto massan valmistamiseksi
SE0502851L (sv) * 2005-12-21 2006-12-19 Kvaerner Pulping Tech System samt förfarande för generering av ånga i ett kokeri för tillverkning av kemisk cellulosamassa
SE0602349L (sv) * 2006-11-07 2008-05-06 Metso Fiber Karlstad Ab Förfarande för att energieffektivt producera cellulosamassa i ett kontinuerligt kokeri
FI122983B (fi) * 2009-02-09 2012-09-28 Andritz Inc Menetelmä höyryn kehittämiseksi sellutehtaan keittämöllä
US8986504B1 (en) * 2013-10-25 2015-03-24 International Paper Company Digester apparatus
FI127386B (fi) * 2014-03-05 2018-04-30 Andritz Oy Menetelmä höyryn kehittämiseksi sellutehtaan keittämöllä

Also Published As

Publication number Publication date
SE1551483A1 (en) 2017-05-17
EP3377696A4 (de) 2019-08-21
EP3377696A1 (de) 2018-09-26
WO2017086856A1 (en) 2017-05-26

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