DE3637604C2 - - Google Patents
Info
- Publication number
- DE3637604C2 DE3637604C2 DE3637604A DE3637604A DE3637604C2 DE 3637604 C2 DE3637604 C2 DE 3637604C2 DE 3637604 A DE3637604 A DE 3637604A DE 3637604 A DE3637604 A DE 3637604A DE 3637604 C2 DE3637604 C2 DE 3637604C2
- Authority
- DE
- Germany
- Prior art keywords
- calcium
- slurry
- exhaust gas
- deposits
- fgd
- 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
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 26
- 239000002002 slurry Substances 0.000 claims description 25
- 229920001577 copolymer Polymers 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 12
- 239000011575 calcium Substances 0.000 claims description 12
- 229910052791 calcium Inorganic materials 0.000 claims description 12
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 11
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 6
- 235000010261 calcium sulphite Nutrition 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000010348 incorporation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 21
- 239000000654 additive Substances 0.000 description 14
- 230000000996 additive effect Effects 0.000 description 10
- 208000004434 Calcinosis Diseases 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- FXNDIJDIPNCZQJ-UHFFFAOYSA-N 2,4,4-trimethylpent-1-ene Chemical group CC(=C)CC(C)(C)C FXNDIJDIPNCZQJ-UHFFFAOYSA-N 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- IPFJRKCJQQMQIT-UHFFFAOYSA-N 2-[[2-(2-hydroxyethoxy)-2-oxoethyl]amino]acetic acid Chemical compound OCCOC(=O)CNCC(O)=O IPFJRKCJQQMQIT-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- -1 Polyol phosphoric acid esters Chemical class 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 150000002903 organophosphorus compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/822,890 US4670236A (en) | 1986-01-27 | 1986-01-27 | Control of scale in flue gas scrubbers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3637604A1 DE3637604A1 (de) | 1987-07-30 |
| DE3637604C2 true DE3637604C2 (cg-RX-API-DMAC7.html) | 1987-12-23 |
Family
ID=25237250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19863637604 Granted DE3637604A1 (de) | 1986-01-27 | 1986-11-05 | Steuerung der ablagerung bzw. verkrustung bei gaswaschern bzw. abgaswaschern |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4670236A (cg-RX-API-DMAC7.html) |
| JP (1) | JPS6351925A (cg-RX-API-DMAC7.html) |
| BE (1) | BE1001288A4 (cg-RX-API-DMAC7.html) |
| DE (1) | DE3637604A1 (cg-RX-API-DMAC7.html) |
| NL (1) | NL8602801A (cg-RX-API-DMAC7.html) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4735787A (en) * | 1987-08-17 | 1988-04-05 | Nalco Chemical Company | Scale inhibitor for intermittent washed mist eliminators in flue gas desulfurization systems |
| DE3925424A1 (de) * | 1989-08-01 | 1991-02-07 | Basf Ag | Verfahren zur verringerung der oxidationsgeschwindigkeit von sulfitloesungen |
| US5034204A (en) * | 1989-12-22 | 1991-07-23 | Electric Power Research Institute | Flue gas desulfurization process |
| WO1993003824A1 (en) * | 1991-08-22 | 1993-03-04 | A. Ahlstrom Corporation | Method for purification of waste gases |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2723956A (en) * | 1950-09-26 | 1955-11-15 | Nat Aluminate Corp | Boiler scale reduction using a copolymer of maleic anhydride and another monoethylenic compound |
| US3485581A (en) * | 1966-11-15 | 1969-12-23 | Wellman Lord Inc | Process for recovering sulfur dioxide from gases containing same |
| US3801699A (en) * | 1972-03-17 | 1974-04-02 | Dow Chemical Co | Reducing scale deposition from alkaline earth metal sulfate and fulfite slurries |
| DE2443857A1 (de) * | 1974-09-13 | 1976-08-12 | Heinz Hoelter | Verfahren zur verhinderung von inkrustierungen in nasswaeschern bei der roheisen-entschwefelung |
| US4171292A (en) * | 1976-08-05 | 1979-10-16 | Betz Laboratories, Inc. | Compositions for treating aqueous mediums containing magnesium sulfite trihydrate |
| JPH0643469B2 (ja) * | 1983-03-25 | 1994-06-08 | 花王株式会社 | マレイン酸共重合体の製造方法 |
-
1986
- 1986-01-27 US US06/822,890 patent/US4670236A/en not_active Expired - Fee Related
- 1986-11-05 DE DE19863637604 patent/DE3637604A1/de active Granted
- 1986-11-05 NL NL8602801A patent/NL8602801A/nl not_active Application Discontinuation
- 1986-12-01 JP JP61286552A patent/JPS6351925A/ja active Pending
-
1987
- 1987-01-23 BE BE8700041A patent/BE1001288A4/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL8602801A (nl) | 1987-08-17 |
| BE1001288A4 (fr) | 1989-09-19 |
| US4670236A (en) | 1987-06-02 |
| JPS6351925A (ja) | 1988-03-05 |
| DE3637604A1 (de) | 1987-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8330 | Complete renunciation |