SE7601954L - TREATMENT OF BLACK LIQUES - Google Patents
TREATMENT OF BLACK LIQUESInfo
- Publication number
- SE7601954L SE7601954L SE7601954A SE7601954A SE7601954L SE 7601954 L SE7601954 L SE 7601954L SE 7601954 A SE7601954 A SE 7601954A SE 7601954 A SE7601954 A SE 7601954A SE 7601954 L SE7601954 L SE 7601954L
- Authority
- SE
- Sweden
- Prior art keywords
- treatment
- black liquor
- gases
- fluidized bed
- liques
- Prior art date
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
-
- 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)
- Treating Waste Gases (AREA)
Abstract
FLUIDIZED BED TREATMENT OF KRAFT BLACK LIQUOR WITH H2S ABSORPTION Disclosed is a process for treatment of Kraft Black Liquor for the purpose of recovery of valuable chemicals contained therein. This process comprises concentrating the black liquor, gasifying in a fluidized bed reactor the organic components while allowing the in organic components to remain in the solid form, recovering a portion of the heat from the off gases, treating the gases to absorb H2S with absorbing solutions of the nonvolatized inorganic components of the black liquor, and returning the used absorbing solution for treatment to form cooking liquor for the digester.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US55188175A | 1975-02-21 | 1975-02-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
SE7601954L true SE7601954L (en) | 1976-08-23 |
Family
ID=24203057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7601954A SE7601954L (en) | 1975-02-21 | 1976-02-19 | TREATMENT OF BLACK LIQUES |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS51105401A (en) |
CA (1) | CA1089162A (en) |
GB (1) | GB1544446A (en) |
IN (1) | IN144575B (en) |
IT (1) | IT1053639B (en) |
MX (1) | MX3460E (en) |
SE (1) | SE7601954L (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1313577C (en) * | 1988-11-17 | 1993-02-16 | Jian Li | Low temperature recovery of kraft black liquor |
US5059404A (en) * | 1989-02-14 | 1991-10-22 | Manufacturing And Technology Conversion International, Inc. | Indirectly heated thermochemical reactor apparatus and processes |
US5255634A (en) * | 1991-04-22 | 1993-10-26 | Manufacturing And Technology Conversion International, Inc. | Pulsed atmospheric fluidized bed combustor apparatus |
US5536488A (en) * | 1991-07-01 | 1996-07-16 | Manufacturing And Technology Conversion | Indirectly heated thermochemical reactor processes |
US5211704A (en) * | 1991-07-15 | 1993-05-18 | Manufacturing Technology And Conversion International, Inc. | Process and apparatus for heating fluids employing a pulse combustor |
TW245651B (en) * | 1994-02-24 | 1995-04-21 | Babcock & Wilcox Co | Black liquor gasifier |
US5909654A (en) * | 1995-03-17 | 1999-06-01 | Hesboel; Rolf | Method for the volume reduction and processing of nuclear waste |
FI115848B (en) * | 2003-07-04 | 2005-07-29 | Valtion Teknillinen | A process for utilizing unreacted carbon in black liquor gasification |
-
1976
- 1976-02-04 IN IN199/CAL/1976A patent/IN144575B/en unknown
- 1976-02-05 CA CA245,131A patent/CA1089162A/en not_active Expired
- 1976-02-12 JP JP51013330A patent/JPS51105401A/ja active Pending
- 1976-02-13 MX MX000341U patent/MX3460E/en unknown
- 1976-02-19 SE SE7601954A patent/SE7601954L/en not_active Application Discontinuation
- 1976-02-23 IT IT48237/76A patent/IT1053639B/en active
- 1976-02-23 GB GB7112/76A patent/GB1544446A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IT1053639B (en) | 1981-10-10 |
IN144575B (en) | 1978-05-20 |
MX3460E (en) | 1980-12-09 |
GB1544446A (en) | 1979-04-19 |
JPS51105401A (en) | 1976-09-18 |
CA1089162A (en) | 1980-11-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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