ES2097489T5 - Un metodo de preparacion de lejia de digestion. - Google Patents
Un metodo de preparacion de lejia de digestion.Info
- Publication number
- ES2097489T5 ES2097489T5 ES93900481T ES93900481T ES2097489T5 ES 2097489 T5 ES2097489 T5 ES 2097489T5 ES 93900481 T ES93900481 T ES 93900481T ES 93900481 T ES93900481 T ES 93900481T ES 2097489 T5 ES2097489 T5 ES 2097489T5
- Authority
- ES
- Spain
- Prior art keywords
- reactor
- liquor
- digesting
- sulphide
- spent liquor
- 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.)
- Expired - Lifetime
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
-
- 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)
- General Preparation And Processing Of Foods (AREA)
- Compounds Of Unknown Constitution (AREA)
- Removal Of Specific Substances (AREA)
- Soy Sauces And Products Related Thereto (AREA)
- Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
Abstract
SE DESCRIBE UN METODO PARA LA PREPARACION DE UN LICOR DIGESTOR DE ALTA SULFURACION A PARTIR DE UN LICOR AGOTADO OBTENIDO DE UN MATERIAL DE FIBRAS CELULOSICAS DIGESTORAS, SIN LLEVAR A CABO PREFERENTEMENTE UN PASO DE CAUSTIFICACION CONVENCIONAL, EN DONDE DICHO METODO CONSISTE EN LA DESCOMPOSICION TERMICA DEL LICOR AGOTADO BAJO CONDICIONES DE REDUCCION EN UN REACTOR A UNA PRESION DE LA PRESION ATMOSFERICA DE HASTA 150 BARAS Y A UNA TEMPERATURA ENTRE 500 APROXIMADAMENTE Y 1600 (GRADOS) C DE TAL MODO QUE SE FORME EN EL REACTOR Y SE PUEDA EXTRAER UNA FASE DE GAS COMBUSTIBLE QUE CONTIENE SULFURO DE HIDROGENO Y UN FASE DE MATERIAL SOLIDO O FUNDIDO QUE CONTIENE SUSTANCIALMENTE SULFURO SODICO QUE SE DISUELVE EN UN LIQUIDO ACUOSO PARA PRODUCIR EL LICOR DIGESTOR. SEGUN LA INVENCION EL SULFURO DE HIDROGENO SE SEPARA DE LA FASE DE GAS Y SE DEVUELVE AL REACTOR PARA QUE SE ENCUENTRE PRESENTE DURANTE LA DESCOMPOSICION TERMICA DEL LICOR AGOTADO.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9103707A SE468600B (sv) | 1991-12-16 | 1991-12-16 | Saett att framstaella koklut med hoeg sulfiditet |
PCT/SE1992/000855 WO1993012288A1 (en) | 1991-12-16 | 1992-12-11 | A method of preparing digesting liquor |
US08/345,448 US5660685A (en) | 1991-12-16 | 1994-11-21 | Gasifying black liquor with recycling of generated hydrogen sulphide gas to the gasifier |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2097489T3 ES2097489T3 (es) | 1997-04-01 |
ES2097489T5 true ES2097489T5 (es) | 2000-12-01 |
Family
ID=26661282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93900481T Expired - Lifetime ES2097489T5 (es) | 1991-12-16 | 1992-12-11 | Un metodo de preparacion de lejia de digestion. |
Country Status (12)
Country | Link |
---|---|
US (1) | US5660685A (es) |
EP (1) | EP0617747B2 (es) |
JP (1) | JPH07501858A (es) |
AT (1) | ATE149044T1 (es) |
AU (1) | AU653664B2 (es) |
BR (1) | BR9206929A (es) |
CA (1) | CA2123987C (es) |
DE (1) | DE69217560D1 (es) |
ES (1) | ES2097489T5 (es) |
FI (1) | FI116073B (es) |
SE (1) | SE468600B (es) |
WO (1) | WO1993012288A1 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9303923L (sv) * | 1993-11-26 | 1995-05-27 | Kvaerner Pulping Tech | Förfarande vid integrerad indunstning och förgasning av avlut från cellulosakokning |
US6027609A (en) * | 1994-11-04 | 2000-02-22 | Kvaener Pulping Ab | Pulp-mill recovery installation for recovering chemicals and energy from cellulose spent liquor using multiple gasifiers |
SE9403786L (sv) * | 1994-11-04 | 1996-05-05 | Kvaerner Pulping Tech | Selektiv utvinning av kemikalier ur celluloaavlutar genom förgasning |
SE9601099L (sv) * | 1996-03-22 | 1997-09-23 | Kvaerner Pulping Tech | Förgasning av svartlut vid ett tryck överstigande 5 bar |
SE506702C2 (sv) * | 1996-04-30 | 1998-02-02 | Kvaerner Pulping Tech | Förbehandling av fibermaterial med in situ bildad vätesulfid |
SE9703365D0 (sv) * | 1997-09-18 | 1997-09-18 | Kvaerner Pulping Tech | Method in connection with impregnation and digestion of lignocelulosic material |
JP4205855B2 (ja) * | 1997-09-18 | 2009-01-07 | ケムレック アクチボラグ | ポリサルファイドパルプ化プロセス |
SE518735C2 (sv) * | 1999-10-13 | 2002-11-12 | Chemrec Ab | Förfarande och anordning vid utvinning av kemikalier i samband med förgasning av restprodukter från massaframställning |
EP1520071B1 (en) * | 2002-07-04 | 2011-08-31 | Metso Power Oy | Method for treatment of spent liquor |
US8690977B2 (en) | 2009-06-25 | 2014-04-08 | Sustainable Waste Power Systems, Inc. | Garbage in power out (GIPO) thermal conversion process |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3762989A (en) * | 1971-07-30 | 1973-10-02 | St Regis Paper Co | Pyrolysis of spent pulping liquors |
SE364324B (es) * | 1972-03-07 | 1974-02-18 | Angpannefoereningen | |
GB1535953A (en) † | 1975-07-21 | 1978-12-13 | Zink Co John | Burning process for black liquor |
US4198388A (en) * | 1978-02-14 | 1980-04-15 | Bethlehem Steel Corporation | Selective removal of H2 S from an H2 S and CO2 containing gas stream |
SE448173B (sv) * | 1985-06-03 | 1987-01-26 | Croon Inventor Ab | Forfarande for utvinning av kemikalier fran cellulosaavlut genom pyrolys |
SE462106B (sv) * | 1986-11-28 | 1990-05-07 | Alf Ove Andersson | Saett att utvinna energi och kemikalier ur avlut fraan massaberedning |
US4957515A (en) * | 1988-11-03 | 1990-09-18 | Air Products And Chemicals, Inc. | Process for sulfur removal and recovery from fuel gas using physical solvent |
SE465039B (sv) * | 1989-11-23 | 1991-07-15 | Chemrec Ab | Saett att framstaella koklutar med hoeg sulfiditet foer sulfatmassakokning |
AU1765892A (en) * | 1991-02-06 | 1992-09-07 | A. Ahlstrom Corporation | A method of recovering energy and chemicals from black liquor |
US5382322A (en) * | 1991-10-18 | 1995-01-17 | Air Products And Chemicals, Inc. | Selective white liquor oxidation |
US5220782A (en) * | 1991-10-23 | 1993-06-22 | Bechtel Group, Inc. | Efficient low temperature solvent removal of acid gases |
US5277884A (en) * | 1992-03-02 | 1994-01-11 | Reuel Shinnar | Solvents for the selective removal of H2 S from gases containing both H2 S and CO2 |
-
1991
- 1991-12-16 SE SE9103707A patent/SE468600B/sv unknown
-
1992
- 1992-12-11 JP JP5510839A patent/JPH07501858A/ja active Pending
- 1992-12-11 DE DE69217560T patent/DE69217560D1/de not_active Expired - Lifetime
- 1992-12-11 BR BR9206929A patent/BR9206929A/pt not_active IP Right Cessation
- 1992-12-11 ES ES93900481T patent/ES2097489T5/es not_active Expired - Lifetime
- 1992-12-11 EP EP93900481A patent/EP0617747B2/en not_active Expired - Lifetime
- 1992-12-11 AU AU31753/93A patent/AU653664B2/en not_active Ceased
- 1992-12-11 AT AT93900481T patent/ATE149044T1/de not_active IP Right Cessation
- 1992-12-11 WO PCT/SE1992/000855 patent/WO1993012288A1/en active IP Right Grant
- 1992-12-11 CA CA002123987A patent/CA2123987C/en not_active Expired - Lifetime
-
1994
- 1994-06-15 FI FI942829A patent/FI116073B/fi not_active IP Right Cessation
- 1994-11-21 US US08/345,448 patent/US5660685A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1993012288A1 (en) | 1993-06-24 |
FI942829A (fi) | 1994-06-15 |
US5660685A (en) | 1997-08-26 |
CA2123987C (en) | 1999-05-04 |
DE69217560D1 (de) | 1997-03-27 |
EP0617747B1 (en) | 1997-02-19 |
FI942829A0 (fi) | 1994-06-15 |
BR9206929A (pt) | 1995-11-21 |
AU653664B2 (en) | 1994-10-06 |
SE9103707L (sv) | 1993-02-15 |
AU3175393A (en) | 1993-07-19 |
SE9103707D0 (sv) | 1991-12-16 |
ATE149044T1 (de) | 1997-03-15 |
EP0617747B2 (en) | 2000-06-28 |
SE468600B (sv) | 1993-02-15 |
FI116073B (fi) | 2005-09-15 |
ES2097489T3 (es) | 1997-04-01 |
EP0617747A1 (en) | 1994-10-05 |
JPH07501858A (ja) | 1995-02-23 |
CA2123987A1 (en) | 1993-06-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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