GB1354499A - Process for the control of air and water pollution for kraft pulp mill - Google Patents
Process for the control of air and water pollution for kraft pulp millInfo
- Publication number
- GB1354499A GB1354499A GB4052370A GB1354499DA GB1354499A GB 1354499 A GB1354499 A GB 1354499A GB 4052370 A GB4052370 A GB 4052370A GB 1354499D A GB1354499D A GB 1354499DA GB 1354499 A GB1354499 A GB 1354499A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphur compounds
- oxidation
- air
- kraft pulp
- pulp mill
- 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
Links
- 239000002655 kraft paper Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000003915 air pollution Methods 0.000 title 1
- 238000003911 water pollution Methods 0.000 title 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical class [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 5
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 2
- 229910001882 dioxygen Inorganic materials 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- 239000002360 explosive Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/48—Sulfur dioxide; Sulfurous acid
- C01B17/50—Preparation of sulfur dioxide
- C01B17/58—Recovery of sulfur dioxide from acid tar or the like or from any waste sulfuric acid
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- 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
- D21C11/08—Deodorisation ; Elimination of malodorous compounds, e.g. sulfur compounds such as hydrogen sulfide or mercaptans, from gas streams
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Treating Waste Gases (AREA)
Abstract
1354499 Oxidizing sulphur compounds CHEMECH ENG Ltd 20 Aug 1971 [22 Aug 1970] 40523/70 Heading C1C A process for the oxidation of malodorous organic sulphur compounds formed during the digestion step in the operation of a kraft pulp mill, which sulphur compounds have been separated into a liquid condensed portion and a gaseous portion, comprises passing a stream of gas containing molecular oxygen (e.g. air) through the liquid portion to strip the sulphur compounds therefrom, then mixing the gas with the gaseous portion and using the molecular oxygen as combustion oxygen in the oxidation at elevated temperature of the sulphur compounds, the mixture having a concentration of combustible materials less than at which it becomes explosive. The oxidation may be carried out in the presence of a steel catalyst.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4052370 | 1970-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1354499A true GB1354499A (en) | 1974-06-05 |
Family
ID=10415322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4052370A Expired GB1354499A (en) | 1970-08-22 | 1970-08-22 | Process for the control of air and water pollution for kraft pulp mill |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA926561A (en) |
| GB (1) | GB1354499A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2143810A (en) * | 1983-06-20 | 1985-02-20 | Duncan Lagnese & Ass Inc | Process for biological reduction of sulphur oxides |
| WO2000034569A1 (en) * | 1998-11-26 | 2000-06-15 | Excelentec Holding Ab | A method of cleaning sulfide contaminated condensates |
-
1970
- 1970-08-22 GB GB4052370A patent/GB1354499A/en not_active Expired
-
1971
- 1971-06-29 CA CA117027A patent/CA926561A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2143810A (en) * | 1983-06-20 | 1985-02-20 | Duncan Lagnese & Ass Inc | Process for biological reduction of sulphur oxides |
| WO2000034569A1 (en) * | 1998-11-26 | 2000-06-15 | Excelentec Holding Ab | A method of cleaning sulfide contaminated condensates |
| US6790313B1 (en) | 1998-11-26 | 2004-09-14 | Excelentec Holding Ab | Method of cleaning sulfide contaminated condensates |
Also Published As
| Publication number | Publication date |
|---|---|
| CA926561A (en) | 1973-05-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |