DE843757T1 - Verfahren zum wiederaufbereiten von einem ozonenthaltenden gas in einer anlage zum zellstoffbleichen - Google Patents
Verfahren zum wiederaufbereiten von einem ozonenthaltenden gas in einer anlage zum zellstoffbleichenInfo
- Publication number
- DE843757T1 DE843757T1 DE0843757T DE96927319T DE843757T1 DE 843757 T1 DE843757 T1 DE 843757T1 DE 0843757 T DE0843757 T DE 0843757T DE 96927319 T DE96927319 T DE 96927319T DE 843757 T1 DE843757 T1 DE 843757T1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- ozone
- scrubber
- alkaline medium
- containing gas
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract 18
- 238000004061 bleaching Methods 0.000 title claims abstract 8
- 238000012958 reprocessing Methods 0.000 title abstract 2
- 239000007789 gas Substances 0.000 claims abstract 64
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract 26
- 238000004076 pulp bleaching Methods 0.000 claims abstract 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract 6
- 239000000706 filtrate Substances 0.000 claims abstract 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000012159 carrier gas Substances 0.000 claims abstract 2
- 238000007599 discharging Methods 0.000 claims abstract 2
- 229910052760 oxygen Inorganic materials 0.000 claims abstract 2
- 239000001301 oxygen Substances 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims 6
- 239000003513 alkali Substances 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 2
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
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
- D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Detergent Compositions (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US194595P | 1995-08-07 | 1995-08-07 | |
| US08/693,919 US5695604A (en) | 1996-08-05 | 1996-08-05 | Method for reprocessing an ozone-containing gas present in a pulp bleaching plant |
| PCT/US1996/012776 WO1997006305A1 (fr) | 1995-08-07 | 1996-08-06 | Procede de retraitement d'un gaz contenant de l'ozone, existant dans une installation de blanchiment de pate a papier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE843757T1 true DE843757T1 (de) | 1998-11-12 |
Family
ID=26669715
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69604809T Expired - Fee Related DE69604809T2 (de) | 1995-08-07 | 1996-08-06 | Verfahren zum wiederaufbereiten von einem ozonenthaltenden gas in einer anlage zum zellstoffbleichen |
| DE0843757T Pending DE843757T1 (de) | 1995-08-07 | 1996-08-06 | Verfahren zum wiederaufbereiten von einem ozonenthaltenden gas in einer anlage zum zellstoffbleichen |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE69604809T Expired - Fee Related DE69604809T2 (de) | 1995-08-07 | 1996-08-06 | Verfahren zum wiederaufbereiten von einem ozonenthaltenden gas in einer anlage zum zellstoffbleichen |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0843757B1 (fr) |
| JP (1) | JPH10510469A (fr) |
| CN (1) | CN1198786A (fr) |
| AT (1) | ATE185857T1 (fr) |
| BR (1) | BR9609907A (fr) |
| CA (1) | CA2229046A1 (fr) |
| DE (2) | DE69604809T2 (fr) |
| ES (1) | ES2116952T3 (fr) |
| PT (1) | PT843757E (fr) |
| WO (1) | WO1997006305A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008105132A1 (fr) * | 2007-02-27 | 2008-09-04 | Shigenori Aono | Procédé de production de produit fibreux blanchi, équipement à utiliser dans le procédé et produit fibreux blanchi obtenu au moyen dudit procédé |
| WO2008105108A1 (fr) | 2007-02-27 | 2008-09-04 | Shigenori Aono | Procédé de production de matières textiles blanchies, équipement à utiliser dans le procédé et matières textiles blanchies obtenues au moyen dudit procédé |
| WO2008108506A1 (fr) | 2007-03-07 | 2008-09-12 | Nihon Cellulose Co., Ltd. | Procédé de traitement d'une liqueur noire ne contenant pas de sulfure |
| FI20080008A7 (fi) * | 2008-01-08 | 2009-07-09 | Andritz Oy | Otsonipitoisen kaasun käsittely massan valkaisun yhteydessä |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6126781A (en) * | 1991-08-01 | 2000-10-03 | Union Camp Patent Holding, Inc. | Process for conditioning ozone gas recycle stream in ozone pulp bleaching |
| WO1993018226A1 (fr) * | 1992-03-02 | 1993-09-16 | Kamyr, Inc. | Destruction d'ozone combinee a l'elimination des fibres dans une fabrique de pate a papier |
| CA2078276C (fr) * | 1992-09-15 | 2004-05-25 | Derek Hornsey | Procede de recuperation de gaz a teneur elevee en oxygene a partir de procedes de blanchiment par l'ozone |
| US5403441A (en) * | 1992-11-13 | 1995-04-04 | Union Camp Patent Holding, Inc. | Method for controlling an ozone bleaching process |
-
1996
- 1996-08-06 AT AT96927319T patent/ATE185857T1/de not_active IP Right Cessation
- 1996-08-06 ES ES96927319T patent/ES2116952T3/es not_active Expired - Lifetime
- 1996-08-06 CA CA002229046A patent/CA2229046A1/fr not_active Abandoned
- 1996-08-06 CN CN96197410.9A patent/CN1198786A/zh active Pending
- 1996-08-06 WO PCT/US1996/012776 patent/WO1997006305A1/fr not_active Ceased
- 1996-08-06 BR BR9609907A patent/BR9609907A/pt not_active Application Discontinuation
- 1996-08-06 JP JP9508601A patent/JPH10510469A/ja active Pending
- 1996-08-06 DE DE69604809T patent/DE69604809T2/de not_active Expired - Fee Related
- 1996-08-06 DE DE0843757T patent/DE843757T1/de active Pending
- 1996-08-06 EP EP96927319A patent/EP0843757B1/fr not_active Expired - Lifetime
- 1996-08-06 PT PT96927319T patent/PT843757E/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0843757B1 (fr) | 1999-10-20 |
| CA2229046A1 (fr) | 1997-02-20 |
| DE69604809D1 (de) | 1999-11-25 |
| ATE185857T1 (de) | 1999-11-15 |
| DE69604809T2 (de) | 2000-05-11 |
| WO1997006305A1 (fr) | 1997-02-20 |
| ES2116952T3 (es) | 2000-02-01 |
| PT843757E (pt) | 2000-04-28 |
| ES2116952T1 (es) | 1998-08-01 |
| CN1198786A (zh) | 1998-11-11 |
| EP0843757A1 (fr) | 1998-05-27 |
| BR9609907A (pt) | 1999-03-30 |
| JPH10510469A (ja) | 1998-10-13 |
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