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CA2202753A1 - Recuperation selective de produits chimiques a partir de liqueurs epuisees provenant de la cuisson de cellulose par gazeification de ladite liqueur - Google Patents

Recuperation selective de produits chimiques a partir de liqueurs epuisees provenant de la cuisson de cellulose par gazeification de ladite liqueur

Info

Publication number
CA2202753A1
CA2202753A1 CA002202753A CA2202753A CA2202753A1 CA 2202753 A1 CA2202753 A1 CA 2202753A1 CA 002202753 A CA002202753 A CA 002202753A CA 2202753 A CA2202753 A CA 2202753A CA 2202753 A1 CA2202753 A1 CA 2202753A1
Authority
CA
Canada
Prior art keywords
reactor
liquor
reactors
gas
process according
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.)
Abandoned
Application number
CA002202753A
Other languages
English (en)
Inventor
Bengt Nilsson
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.)
Chemrec AB
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2202753A1 publication Critical patent/CA2202753A1/fr
Abandoned 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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis
    • 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
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali 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
    • D21C11/12—Combustion of pulp liquors
    • D21C11/122—Treatment, e.g. dissolution, of the smelt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Paper (AREA)

Abstract

Procédé de récupération de produits chimiques et d'énergie à partir de liqueur épuisée obtenue lorsque l'on produit de la pâte à papier par délignification chimique de matières premières fibreuses. Ladite liqueur épuisée est gazéifiée dans au moins deux réacteurs, un premier et un second flux de matériau solide et/ou fondu et de matériau gazeux combustible étant formés. Le matériau formé est ensuite traité dans un ou plusieurs dispositifs (5, 6, 7, 8), une première (9) et une seconde liqueur (27) étant alors formées. La pression et/ou la température dans le premier réacteur est/sont différente(s) de la pression et/ou de la température dans le second réacteur. De plus, un ou plusieurs produits chimiques de traitement sont récupérés sélectivement de la liqueur et/ou du gaz formés et sont ensuite renvoyés intégralement ou en partie à un ou plusieurs desdits réacteurs (1, 2) et/ou à un ou plusieurs desdits dispositifs (5, 6, 7, 8) en vue du traitement du matériau formé.
CA002202753A 1994-11-04 1995-10-18 Recuperation selective de produits chimiques a partir de liqueurs epuisees provenant de la cuisson de cellulose par gazeification de ladite liqueur Abandoned CA2202753A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9403786A SE9403786L (sv) 1994-11-04 1994-11-04 Selektiv utvinning av kemikalier ur celluloaavlutar genom förgasning
SE9403786-8 1994-11-04

Publications (1)

Publication Number Publication Date
CA2202753A1 true CA2202753A1 (fr) 1996-05-17

Family

ID=20395854

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002202753A Abandoned CA2202753A1 (fr) 1994-11-04 1995-10-18 Recuperation selective de produits chimiques a partir de liqueurs epuisees provenant de la cuisson de cellulose par gazeification de ladite liqueur

Country Status (6)

Country Link
JP (1) JPH10509481A (fr)
AU (1) AU3884595A (fr)
CA (1) CA2202753A1 (fr)
FI (1) FI971867A7 (fr)
SE (1) SE9403786L (fr)
WO (1) WO1996014468A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6030493A (en) * 1994-11-04 2000-02-29 Kvaerner Pulping, Ab Process for recovering chemicals and energy from cellulose spent liquor using multiple gasifiers
DE19642162A1 (de) * 1996-10-12 1998-04-16 Krc Umwelttechnik Gmbh Verfahren zur Regeneration einer beim Kraftprozeß zum Aufschluß von Holz anfallenden Flüssigkeit unter gleichzeitiger Gewinnung von Energie
FI104335B (sv) * 1997-10-13 1999-12-31 Poeyry Jaakko & Co Oy Förfarande för återvinning av alkali och energi ur silikathaltig svartlut
SE512443C2 (sv) * 1999-04-01 2000-03-20 Kvaerner Chemrec Ab Förfarande för kylning av fast och gasformigt material vid förgasning av avlut
PT1520071E (pt) 2002-07-04 2011-09-12 Metso Power Oy Método para tratamento de lixívia residual
SE535117C2 (sv) * 2010-03-30 2012-04-17 Chemrec Ab Förgasning av sulfittjocklut

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841962A (en) * 1972-07-31 1974-10-15 Mac Millan Bloedel Ltd Hydrogen sulfide pretreatment of lignocellulosic materials in alkaline pulping processes
SE448173B (sv) * 1985-06-03 1987-01-26 Croon Inventor Ab Forfarande for utvinning av kemikalier fran cellulosaavlut genom pyrolys
FI91290C (fi) * 1991-02-14 1994-06-10 Tampella Power Oy Menetelmä ja laitteisto energian ja kemikaalien talteenottamiseksi sulfaattiselluprosessissa
SE9103707L (sv) * 1991-12-16 1993-02-15 Chemrec Ab Saett att framstaella koklut med hoeg sulfiditet

Also Published As

Publication number Publication date
SE9403786D0 (sv) 1994-11-04
SE9403786L (sv) 1996-05-05
FI971867A0 (fi) 1997-04-30
AU3884595A (en) 1996-05-31
WO1996014468A1 (fr) 1996-05-17
JPH10509481A (ja) 1998-09-14
FI971867A7 (fi) 1997-04-30

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued