SE538452C2 - Method for operating a two vessel digester system - Google Patents

Method for operating a two vessel digester system Download PDF

Info

Publication number
SE538452C2
SE538452C2 SE1451340A SE1451340A SE538452C2 SE 538452 C2 SE538452 C2 SE 538452C2 SE 1451340 A SE1451340 A SE 1451340A SE 1451340 A SE1451340 A SE 1451340A SE 538452 C2 SE538452 C2 SE 538452C2
Authority
SE
Sweden
Prior art keywords
digester
liquor
cooking
vessel
wash
Prior art date
Application number
SE1451340A
Other languages
English (en)
Swedish (sv)
Other versions
SE1451340A1 (sv
Inventor
Wilgotson Fredrik
Hägglund Magnus
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 SE1451340A priority Critical patent/SE538452C2/en
Priority to PCT/SE2015/051161 priority patent/WO2016072919A1/fr
Priority to EP15857624.9A priority patent/EP3215672B1/fr
Priority to BR112017009620-0A priority patent/BR112017009620B1/pt
Publication of SE1451340A1 publication Critical patent/SE1451340A1/sv
Publication of SE538452C2 publication Critical patent/SE538452C2/en
Priority to CL2017001066A priority patent/CL2017001066A1/es

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • 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
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE1451340A 2014-11-07 2014-11-07 Method for operating a two vessel digester system SE538452C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE1451340A SE538452C2 (en) 2014-11-07 2014-11-07 Method for operating a two vessel digester system
PCT/SE2015/051161 WO2016072919A1 (fr) 2014-11-07 2015-11-04 Procédé de fonctionnement d'un système de digesteur à deux cuves
EP15857624.9A EP3215672B1 (fr) 2014-11-07 2015-11-04 Procédé de fonctionnement d'un système de digesteur à deux cuves
BR112017009620-0A BR112017009620B1 (pt) 2014-11-07 2015-11-04 Método para cozinhar material celulósico triturado
CL2017001066A CL2017001066A1 (es) 2014-11-07 2017-04-28 Método de operación de un sistema de digestor doble

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1451340A SE538452C2 (en) 2014-11-07 2014-11-07 Method for operating a two vessel digester system

Publications (2)

Publication Number Publication Date
SE1451340A1 SE1451340A1 (sv) 2016-05-08
SE538452C2 true SE538452C2 (en) 2016-07-05

Family

ID=55909499

Family Applications (1)

Application Number Title Priority Date Filing Date
SE1451340A SE538452C2 (en) 2014-11-07 2014-11-07 Method for operating a two vessel digester system

Country Status (5)

Country Link
EP (1) EP3215672B1 (fr)
BR (1) BR112017009620B1 (fr)
CL (1) CL2017001066A1 (fr)
SE (1) SE538452C2 (fr)
WO (1) WO2016072919A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109312537A (zh) * 2016-05-27 2019-02-05 维美德公司 用于料片浸渍的双重碱加料

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5536366A (en) * 1993-05-04 1996-07-16 Ahlstrom Machinery Inc. Digester system for implementing low dissolved solids profiling
US5522958A (en) * 1994-07-18 1996-06-04 Pulp And Paper Research Institute Of Canada Two-stage kraft cooking
SE9802844D0 (sv) * 1998-08-24 1998-08-24 Kvaerner Pulping Tech Method for continuous cooking of lignocellulosic fibre material
FI990127A0 (fi) * 1999-01-22 1999-01-22 Ahlstrom Machinery Oy Menetelmä massan käsittelemiseksi
SE518957C2 (sv) * 2002-01-24 2002-12-10 Kvaerner Pulping Tech Förfarande för att öka värmeekonomin i kokarsystemet vid kontinuerlig kokning
FI123023B (fi) * 2009-09-01 2012-10-15 Andritz Oy Menetelmä ja laitteisto suovan erottamiseksi

Also Published As

Publication number Publication date
BR112017009620A2 (pt) 2017-12-19
BR112017009620B1 (pt) 2022-04-12
SE1451340A1 (sv) 2016-05-08
CL2017001066A1 (es) 2017-12-29
WO2016072919A1 (fr) 2016-05-12
EP3215672A4 (fr) 2018-05-02
EP3215672B1 (fr) 2019-01-23
EP3215672A1 (fr) 2017-09-13

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