SE9403786L - Selective extraction of chemicals from cellulose liquids by gasification - Google Patents

Selective extraction of chemicals from cellulose liquids by gasification

Info

Publication number
SE9403786L
SE9403786L SE9403786A SE9403786A SE9403786L SE 9403786 L SE9403786 L SE 9403786L SE 9403786 A SE9403786 A SE 9403786A SE 9403786 A SE9403786 A SE 9403786A SE 9403786 L SE9403786 L SE 9403786L
Authority
SE
Sweden
Prior art keywords
chemicals
liquor
gasification
liquids
cellulose
Prior art date
Application number
SE9403786A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9403786D0 (en
Inventor
Bengt Nilsson
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to SE9403786A priority Critical patent/SE9403786L/en
Publication of SE9403786D0 publication Critical patent/SE9403786D0/en
Priority to JP8515233A priority patent/JPH10509481A/en
Priority to PCT/SE1995/001219 priority patent/WO1996014468A1/en
Priority to AU38845/95A priority patent/AU3884595A/en
Priority to CA002202753A priority patent/CA2202753A1/en
Publication of SE9403786L publication Critical patent/SE9403786L/en
Priority to FI971867A priority patent/FI971867A0/en
Priority to US08/850,350 priority patent/US6030493A/en
Priority to US08/850,349 priority patent/US6027609A/en
Priority to US09/264,565 priority patent/US6238468B1/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
    • 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

Process for recovering chemicals and energy from spent liquor obtained when producing paper pulp by chemical delignification of fibrous raw material. The spent liquor is gasified in at least two reactors, a first and a second stream of solid and/or smelt material and of combustible gaseous material being formed. The formed material is treated thereafter in one or more devices (5, 6, 7, 8), whereby a first (9) and a second liquor (27) is formed. The pressure and/or temperature in the said first reactor differ(s) from the pressure and/or temperature in the said second reactor. In addition, one or more process chemicals are recovered selectively from the formed liquor and/or gas, and are thereafter returned in whole or in part to one or more of the said reactors (1, 2) and/or to one or more of the said devices (5, 6, 7, 8) for treatment of the formed material.
SE9403786A 1994-11-04 1994-11-04 Selective extraction of chemicals from cellulose liquids by gasification SE9403786L (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
SE9403786A SE9403786L (en) 1994-11-04 1994-11-04 Selective extraction of chemicals from cellulose liquids by gasification
JP8515233A JPH10509481A (en) 1994-11-04 1995-10-18 Method for recovering chemicals and energy from cellulose waste liquid
PCT/SE1995/001219 WO1996014468A1 (en) 1994-11-04 1995-10-18 Selective recovery of chemicals from cellulose spent liquor by liquor gasifying
AU38845/95A AU3884595A (en) 1994-11-04 1995-10-18 Selective recovery of chemicals from cellulose spent liquor by liquor gasifying
CA002202753A CA2202753A1 (en) 1994-11-04 1995-10-18 Selective recovery of chemicals from cellulose spent liquor by liquor gasifying
FI971867A FI971867A0 (en) 1994-11-04 1997-04-30 Selective recovery of chemicals from cellulose waste solution by gasification of the solution
US08/850,350 US6030493A (en) 1994-11-04 1997-05-02 Process for recovering chemicals and energy from cellulose spent liquor using multiple gasifiers
US08/850,349 US6027609A (en) 1994-11-04 1997-05-02 Pulp-mill recovery installation for recovering chemicals and energy from cellulose spent liquor using multiple gasifiers
US09/264,565 US6238468B1 (en) 1994-11-04 1999-03-08 Quench vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9403786A SE9403786L (en) 1994-11-04 1994-11-04 Selective extraction of chemicals from cellulose liquids by gasification

Publications (2)

Publication Number Publication Date
SE9403786D0 SE9403786D0 (en) 1994-11-04
SE9403786L true SE9403786L (en) 1996-05-05

Family

ID=20395854

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9403786A SE9403786L (en) 1994-11-04 1994-11-04 Selective extraction of chemicals from cellulose liquids by gasification

Country Status (6)

Country Link
JP (1) JPH10509481A (en)
AU (1) AU3884595A (en)
CA (1) CA2202753A1 (en)
FI (1) FI971867A0 (en)
SE (1) SE9403786L (en)
WO (1) WO1996014468A1 (en)

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 (en) * 1996-10-12 1998-04-16 Krc Umwelttechnik Gmbh Process for the regeneration of a liquid resulting from the power process for the digestion of wood with simultaneous production of energy
FI104335B1 (en) * 1997-10-13 1999-12-31 Poeyry Jaakko & Co Oy Process for the recovery of alkali and energy from silicate-containing black liquor
SE9901185L (en) * 1999-04-01 2000-03-20 Kvaerner Chemrec Ab Process for cooling solid and gaseous material in gasification of effluent
ES2372749T3 (en) 2002-07-04 2012-01-26 Metso Power Oy METHOD FOR THE RESIDUAL LYE TREATMENT.
SE535117C2 (en) * 2010-03-30 2012-04-17 Chemrec Ab Gasification of sulphite thick liquor

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 (en) * 1985-06-03 1987-01-26 Croon Inventor Ab PROCEDURE FOR THE RECOVERY OF CELLULOSA DISPOSAL CHEMICALS BY PYROLYSIS
FI91290C (en) * 1991-02-14 1994-06-10 Tampella Power Oy Method and apparatus for energy and chemical recovery in a sulfate pulp process
SE468600B (en) * 1991-12-16 1993-02-15 Chemrec Ab SET TO MAKE HIGH SULFIDITY COOKIES

Also Published As

Publication number Publication date
FI971867A (en) 1997-04-30
AU3884595A (en) 1996-05-31
FI971867A0 (en) 1997-04-30
SE9403786D0 (en) 1994-11-04
WO1996014468A1 (en) 1996-05-17
CA2202753A1 (en) 1996-05-17
JPH10509481A (en) 1998-09-14

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