UY37275A - CHEMICAL PULP PRODUCTION METHOD ON A PLANT DIGESTING A CHEMICAL PULP FACTORY - Google Patents

CHEMICAL PULP PRODUCTION METHOD ON A PLANT DIGESTING A CHEMICAL PULP FACTORY

Info

Publication number
UY37275A
UY37275A UY0001037275A UY37275A UY37275A UY 37275 A UY37275 A UY 37275A UY 0001037275 A UY0001037275 A UY 0001037275A UY 37275 A UY37275 A UY 37275A UY 37275 A UY37275 A UY 37275A
Authority
UY
Uruguay
Prior art keywords
chemical pulp
black liquor
digester
instant
production method
Prior art date
Application number
UY0001037275A
Other languages
Spanish (es)
Inventor
Kettunen Auvo
Engstrom Johan
Piira Jussi
Original Assignee
Andritz 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=59337707&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=UY37275(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Andritz Oy filed Critical Andritz Oy
Publication of UY37275A publication Critical patent/UY37275A/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
    • 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

Landscapes

  • Paper (AREA)

Abstract

Método para producir pulpa química en planta digestora, que comprende: a) formar suspensión de material fibroso de celulosa conminuta y líquido en digestor; tratar material con químico a más de 130 ºC para producir material tratado y licor negro;b) extraer corriente de licor negro; conducirlo hacia relación de intercambiador de calor indirecta con vapor en intercambiador de calor;c) conducir el licor negro calentado hacia tanque de evaporación instantánea,generando vapor de expansión instantánea y licor negro sometido a evaporación instantánea,d) utilizar vapor de expansión instantánea de c) para calentar el material fibroso en digestor.Method for producing chemical pulp in digester plant, comprising: a) forming suspension of fibrous material of comminuted cellulose and liquid in digester; treat material with chemical at more than 130 ° C to produce treated material and black liquor; b) extract current from black liquor; lead it to an indirect heat exchanger ratio with steam in a heat exchanger; c) drive the heated black liquor into an instant evaporation tank, generating instant expansion steam and black liquor subjected to instant evaporation, d) using instant expansion steam from c ) to heat the fibrous material in digester.

UY0001037275A 2016-06-06 2017-06-05 CHEMICAL PULP PRODUCTION METHOD ON A PLANT DIGESTING A CHEMICAL PULP FACTORY UY37275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20165470A FI20165470A (en) 2016-06-06 2016-06-06 A process for producing chemical pulp at a pulp mill digester

Publications (1)

Publication Number Publication Date
UY37275A true UY37275A (en) 2018-01-31

Family

ID=59337707

Family Applications (1)

Application Number Title Priority Date Filing Date
UY0001037275A UY37275A (en) 2016-06-06 2017-06-05 CHEMICAL PULP PRODUCTION METHOD ON A PLANT DIGESTING A CHEMICAL PULP FACTORY

Country Status (6)

Country Link
EP (1) EP3464715B1 (en)
ES (1) ES2896078T3 (en)
FI (1) FI20165470A (en)
PT (1) PT3464715T (en)
UY (1) UY37275A (en)
WO (1) WO2017212111A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE544629C2 (en) * 2021-02-03 2022-09-27 Valmet Oy Indirect heating of digester

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258390A (en) 1962-10-20 1966-06-28 Domtar Ltd Method and apparatus for maintaining a water balance during impregnation and digestion of cellulosic material
SE453673B (en) 1985-07-02 1988-02-22 Kamyr Ab SEE CONTINUOUS COOKING TO HEAT THE FIBER MATERIAL AT THE COOKER'S TOP
US6306252B1 (en) 1995-04-10 2001-10-23 Andritz-Ahlstrom Inc. Heat recovery from spent digester cooking liquor
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
SE530332C2 (en) * 2006-11-07 2008-05-06 Metso Fiber Karlstad Ab Process for energy-efficient production of cellulose pulp in a continuous cookery
FI122983B (en) * 2009-02-09 2012-09-28 Andritz Inc A process for steam generation at a pulp mill digester
FI20090079A (en) 2009-03-05 2010-09-06 Andritz Inc Heat recovery from waste cooking liquor at a pulp mill digester
US9103070B2 (en) 2012-02-13 2015-08-11 Andritz Inc. Flash tank with adjustable inlet
FI127386B (en) 2014-03-05 2018-04-30 Andritz Oy A process for steam generation at a pulp mill digester

Also Published As

Publication number Publication date
ES2896078T3 (en) 2022-02-23
FI20165470A (en) 2017-12-07
EP3464715B1 (en) 2021-07-28
EP3464715A1 (en) 2019-04-10
PT3464715T (en) 2021-11-02
WO2017212111A1 (en) 2017-12-14

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