SE515939C2 - Förfarande och anordning för automatiserad övervakning av massaretentionstid - Google Patents
Förfarande och anordning för automatiserad övervakning av massaretentionstidInfo
- Publication number
- SE515939C2 SE515939C2 SE9604380A SE9604380A SE515939C2 SE 515939 C2 SE515939 C2 SE 515939C2 SE 9604380 A SE9604380 A SE 9604380A SE 9604380 A SE9604380 A SE 9604380A SE 515939 C2 SE515939 C2 SE 515939C2
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- tracer
- automated
- pulp slurry
- outlet
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000014759 maintenance of location Effects 0.000 title claims description 35
- 238000012544 monitoring process Methods 0.000 title description 3
- 239000000700 radioactive tracer Substances 0.000 claims abstract description 86
- 239000013055 pulp slurry Substances 0.000 claims abstract description 44
- 150000001875 compounds Chemical class 0.000 claims abstract description 26
- 238000011088 calibration curve Methods 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims description 22
- 102000004190 Enzymes Human genes 0.000 claims description 18
- 108090000790 Enzymes Proteins 0.000 claims description 18
- 239000011573 trace mineral Substances 0.000 claims description 18
- 235000013619 trace mineral Nutrition 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 15
- XMBWDFGMSWQBCA-UHFFFAOYSA-M iodide Chemical compound [I-] XMBWDFGMSWQBCA-UHFFFAOYSA-M 0.000 claims description 11
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000460 chlorine Substances 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 9
- 238000005660 chlorination reaction Methods 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 2
- -1 iodine salt compound Chemical class 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 4
- 230000007935 neutral effect Effects 0.000 abstract description 3
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 23
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 22
- 239000000126 substance Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 20
- 238000004061 bleaching Methods 0.000 description 16
- 239000002002 slurry Substances 0.000 description 16
- 230000008569 process Effects 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 9
- 239000000123 paper Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005070 sampling Methods 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 6
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 5
- 239000007844 bleaching agent Substances 0.000 description 5
- 238000009835 boiling Methods 0.000 description 5
- 239000011630 iodine Substances 0.000 description 5
- 229910052740 iodine Inorganic materials 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- 230000005465 channeling Effects 0.000 description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000004537 pulping Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 239000004155 Chlorine dioxide Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 235000019398 chlorine dioxide Nutrition 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 101710121765 Endo-1,4-beta-xylanase Proteins 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002496 iodine Chemical class 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- XONPDZSGENTBNJ-UHFFFAOYSA-N molecular hydrogen;sodium Chemical class [Na].[H][H] XONPDZSGENTBNJ-UHFFFAOYSA-N 0.000 description 1
- 230000000414 obstructive effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/34—Paper
- G01N33/343—Paper pulp
-
- 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
- D21C7/00—Digesters
- D21C7/12—Devices for regulating or controlling
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/568,516 US5755928A (en) | 1995-12-07 | 1995-12-07 | Method for automated monitoring of pulp retention time using an iodide salt as a tracer |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE9604380D0 SE9604380D0 (sv) | 1996-11-28 |
| SE9604380L SE9604380L (sv) | 1997-06-08 |
| SE515939C2 true SE515939C2 (sv) | 2001-10-29 |
Family
ID=24271621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9604380A SE515939C2 (sv) | 1995-12-07 | 1996-11-28 | Förfarande och anordning för automatiserad övervakning av massaretentionstid |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US5755928A (fi) |
| CA (1) | CA2192406C (fi) |
| FI (1) | FI111962B (fi) |
| SE (1) | SE515939C2 (fi) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8364185B2 (en) * | 2005-04-18 | 2013-01-29 | Samsung Electronics Co., Ltd. | Method and system for synchronizing a clock for an adjacent network to a clock for an overlay network |
| US8157955B2 (en) | 2006-08-10 | 2012-04-17 | Iogen Energy Corporation | Method and system for the large scale collection of ligno-cellulosic biomass |
| US8057635B2 (en) * | 2006-08-10 | 2011-11-15 | Iogen Energy Corporation | Method and system for the large scale collection, preparation, handling and refining of ligno-cellulosic biomass |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295927A (en) * | 1979-06-15 | 1981-10-20 | Weyerhaeuser Company | Method and apparatus for treating pulp with oxygen and storing the treated pulp |
| US4298426A (en) * | 1979-06-15 | 1981-11-03 | Weyerhaeuser Company | Method and apparatus for treating pulp with oxygen in a multi-stage bleaching sequence |
| US4298427A (en) * | 1979-06-15 | 1981-11-03 | Weyerhaeuser Company | Method and apparatus for intimately mixing oxygen and pulp while using an alkali to extract bleaching by-products |
| US4783314A (en) * | 1987-02-26 | 1988-11-08 | Nalco Chemical Company | Fluorescent tracers - chemical treatment monitors |
| US4946555A (en) * | 1989-01-19 | 1990-08-07 | Canadian Liquid Air Ltd./Air Liquide Canada | Apparatus and method for measuring vent gas flow rates and parameters in pulp and paper processing |
| US5034095A (en) * | 1989-06-01 | 1991-07-23 | Oji Paper Co., Ltd. | Apparatus and process for the delignification of cellulose pulp |
-
1995
- 1995-12-07 US US08/568,516 patent/US5755928A/en not_active Expired - Fee Related
-
1996
- 1996-11-28 SE SE9604380A patent/SE515939C2/sv not_active IP Right Cessation
- 1996-12-04 FI FI964852A patent/FI111962B/fi not_active IP Right Cessation
- 1996-12-09 CA CA002192406A patent/CA2192406C/en not_active Expired - Fee Related
-
1998
- 1998-01-16 US US09/008,508 patent/US6017420A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5755928A (en) | 1998-05-26 |
| CA2192406A1 (en) | 1997-06-08 |
| US6017420A (en) | 2000-01-25 |
| SE9604380D0 (sv) | 1996-11-28 |
| CA2192406C (en) | 2003-11-18 |
| SE9604380L (sv) | 1997-06-08 |
| FI964852A (fi) | 1997-06-08 |
| FI964852A0 (fi) | 1996-12-04 |
| FI111962B (fi) | 2003-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |