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 liqueurInfo
- 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
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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9403786-8 | 1994-11-04 | ||
SE9403786A SE9403786L (sv) | 1994-11-04 | 1994-11-04 | Selektiv utvinning av kemikalier ur celluloaavlutar genom förgasning |
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) | FI971867A0 (fr) |
SE (1) | SE9403786L (fr) |
WO (1) | WO1996014468A1 (fr) |
Families Citing this family (6)
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 |
FI104335B1 (fi) * | 1997-10-13 | 1999-12-31 | Poeyry Jaakko & Co Oy | Menetelmä alkalin ja energian talteenottamiseksi silikaattipitoisesta mustalipeästä |
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)
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 |
SE468600B (sv) * | 1991-12-16 | 1993-02-15 | Chemrec Ab | Saett att framstaella koklut med hoeg sulfiditet |
-
1994
- 1994-11-04 SE SE9403786A patent/SE9403786L/ not_active Application Discontinuation
-
1995
- 1995-10-18 AU AU38845/95A patent/AU3884595A/en not_active Abandoned
- 1995-10-18 WO PCT/SE1995/001219 patent/WO1996014468A1/fr active Application Filing
- 1995-10-18 JP JP8515233A patent/JPH10509481A/ja not_active Ceased
- 1995-10-18 CA CA002202753A patent/CA2202753A1/fr not_active Abandoned
-
1997
- 1997-04-30 FI FI971867A patent/FI971867A0/fi unknown
Also Published As
Publication number | Publication date |
---|---|
FI971867A (fi) | 1997-04-30 |
FI971867A0 (fi) | 1997-04-30 |
AU3884595A (en) | 1996-05-31 |
WO1996014468A1 (fr) | 1996-05-17 |
SE9403786L (sv) | 1996-05-05 |
SE9403786D0 (sv) | 1994-11-04 |
JPH10509481A (ja) | 1998-09-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Dead |