CA2247815A1 - Process for extracting chemicals and energy from cellulose spent liquor - Google Patents

Process for extracting chemicals and energy from cellulose spent liquor Download PDF

Info

Publication number
CA2247815A1
CA2247815A1 CA002247815A CA2247815A CA2247815A1 CA 2247815 A1 CA2247815 A1 CA 2247815A1 CA 002247815 A CA002247815 A CA 002247815A CA 2247815 A CA2247815 A CA 2247815A CA 2247815 A1 CA2247815 A1 CA 2247815A1
Authority
CA
Canada
Prior art keywords
reactor
gas
black liquor
exceeding
smelt
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
CA002247815A
Other languages
English (en)
French (fr)
Inventor
Jan-Erik Kignell
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.)
Metso Fiber Karlstad 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 CA2247815A1 publication Critical patent/CA2247815A1/en
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
    • D21C11/10—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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green 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
    • 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
    • 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

Landscapes

  • Paper (AREA)
CA002247815A 1996-03-22 1997-03-19 Process for extracting chemicals and energy from cellulose spent liquor Abandoned CA2247815A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9601099-6 1996-03-22
SE9601099A SE9601099L (sv) 1996-03-22 1996-03-22 Förgasning av svartlut vid ett tryck överstigande 5 bar

Publications (1)

Publication Number Publication Date
CA2247815A1 true CA2247815A1 (en) 1997-10-02

Family

ID=20401895

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002247815A Abandoned CA2247815A1 (en) 1996-03-22 1997-03-19 Process for extracting chemicals and energy from cellulose spent liquor

Country Status (6)

Country Link
EP (1) EP0888476A1 (sv)
JP (1) JP2000507318A (sv)
BR (1) BR9708319A (sv)
CA (1) CA2247815A1 (sv)
SE (1) SE9601099L (sv)
WO (1) WO1997036043A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE535117C2 (sv) * 2010-03-30 2012-04-17 Chemrec Ab Förgasning av sulfittjocklut

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE448173B (sv) * 1985-06-03 1987-01-26 Croon Inventor Ab Forfarande for utvinning av kemikalier fran cellulosaavlut genom pyrolys
SE468600B (sv) * 1991-12-16 1993-02-15 Chemrec Ab Saett att framstaella koklut med hoeg sulfiditet

Also Published As

Publication number Publication date
WO1997036043A1 (en) 1997-10-02
JP2000507318A (ja) 2000-06-13
EP0888476A1 (en) 1999-01-07
SE9601099L (sv) 1997-09-23
SE9601099D0 (sv) 1996-03-22
BR9708319A (pt) 1999-08-03

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Legal Events

Date Code Title Description
FZDE Dead