CA1048231A - Process for the removal of oxides of sulfur from a gaseous stream - Google Patents
Process for the removal of oxides of sulfur from a gaseous streamInfo
- Publication number
- CA1048231A CA1048231A CA74199044A CA199044A CA1048231A CA 1048231 A CA1048231 A CA 1048231A CA 74199044 A CA74199044 A CA 74199044A CA 199044 A CA199044 A CA 199044A CA 1048231 A CA1048231 A CA 1048231A
- Authority
- CA
- Canada
- Prior art keywords
- magnesium
- effluent
- calcium
- liquor
- scrubbing unit
- 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
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000011593 sulfur Substances 0.000 title claims abstract description 15
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 19
- 238000005201 scrubbing Methods 0.000 claims abstract description 41
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 19
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 16
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 10
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 10
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 10
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 9
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 9
- 159000000007 calcium salts Chemical class 0.000 claims abstract description 8
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims abstract description 7
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910001425 magnesium ion Inorganic materials 0.000 claims abstract description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical class [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 29
- 239000011777 magnesium Substances 0.000 claims description 29
- 239000011575 calcium Substances 0.000 claims description 24
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 19
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 19
- 229910052791 calcium Inorganic materials 0.000 claims description 19
- 235000012255 calcium oxide Nutrition 0.000 claims description 19
- 229910052749 magnesium Inorganic materials 0.000 claims description 19
- 235000001055 magnesium Nutrition 0.000 claims description 19
- 229940091250 magnesium supplement Drugs 0.000 claims description 19
- 239000000292 calcium oxide Substances 0.000 claims description 18
- 235000012245 magnesium oxide Nutrition 0.000 claims description 18
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 15
- 229960000869 magnesium oxide Drugs 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 235000019738 Limestone Nutrition 0.000 claims description 7
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 7
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 7
- 239000006028 limestone Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 5
- 235000012254 magnesium hydroxide Nutrition 0.000 claims description 5
- 229960000816 magnesium hydroxide Drugs 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims description 4
- 239000002370 magnesium bicarbonate Substances 0.000 claims description 4
- 229910000022 magnesium bicarbonate Inorganic materials 0.000 claims description 4
- 235000014824 magnesium bicarbonate Nutrition 0.000 claims description 4
- 159000000003 magnesium salts Chemical class 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- QWDJLDTYWNBUKE-UHFFFAOYSA-L magnesium bicarbonate Chemical compound [Mg+2].OC([O-])=O.OC([O-])=O QWDJLDTYWNBUKE-UHFFFAOYSA-L 0.000 claims description 3
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 3
- 239000001095 magnesium carbonate Substances 0.000 claims description 3
- 235000014380 magnesium carbonate Nutrition 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 claims description 2
- 229940043430 calcium compound Drugs 0.000 claims 2
- 238000004064 recycling Methods 0.000 claims 2
- 229940077744 antacid containing magnesium compound Drugs 0.000 claims 1
- 150000001674 calcium compounds Chemical class 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 150000002681 magnesium compounds Chemical class 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 33
- 235000011941 Tilia x europaea Nutrition 0.000 description 33
- 239000004571 lime Substances 0.000 description 33
- 240000006909 Tilia x europaea Species 0.000 description 31
- 239000007789 gas Substances 0.000 description 23
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 10
- 239000002002 slurry Substances 0.000 description 9
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 150000002500 ions Chemical class 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 240000007313 Tilia cordata Species 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- -1 basically Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 241001133287 Artocarpus hirsutus Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000237074 Centris Species 0.000 description 1
- 101150039033 Eci2 gene Proteins 0.000 description 1
- 229910019440 Mg(OH) Inorganic materials 0.000 description 1
- 101150107341 RERE gene Proteins 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical class [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- YLUIKWVQCKSMCF-UHFFFAOYSA-N calcium;magnesium;oxygen(2-) Chemical compound [O-2].[O-2].[Mg+2].[Ca+2] YLUIKWVQCKSMCF-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- ADKOXSOCTOWDOP-UHFFFAOYSA-L magnesium;aluminum;dihydroxide;trihydrate Chemical compound O.O.O.[OH-].[OH-].[Mg+2].[Al] ADKOXSOCTOWDOP-UHFFFAOYSA-L 0.000 description 1
- LPHFLPKXBKBHRW-UHFFFAOYSA-L magnesium;hydrogen sulfite Chemical compound [Mg+2].OS([O-])=O.OS([O-])=O LPHFLPKXBKBHRW-UHFFFAOYSA-L 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 description 1
- 241000894007 species Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 238000004457 water analysis Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/464—Sulfates of Ca from gases containing sulfur oxides
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/48—Sulfites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/42—Magnesium sulfites
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US359777A US3919394A (en) | 1973-05-14 | 1973-05-14 | Process for the removal of oxides of sulfur from a gaseous stream |
| US450752A US3914378A (en) | 1973-05-14 | 1974-03-13 | Process for wet scrubbing of sulfur dioxide from flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1048231A true CA1048231A (en) | 1979-02-13 |
Family
ID=27000626
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA74199044A Expired CA1048231A (en) | 1973-05-14 | 1974-05-06 | Process for the removal of oxides of sulfur from a gaseous stream |
| CA217,586A Expired CA1043984A (en) | 1973-05-14 | 1975-01-08 | Process for wet scrubbing of sulfur dioxide from flue gas |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA217,586A Expired CA1043984A (en) | 1973-05-14 | 1975-01-08 | Process for wet scrubbing of sulfur dioxide from flue gas |
Country Status (7)
| Country | Link |
|---|---|
| US (3) | US3919394A (OSRAM) |
| BE (2) | BE814641A (OSRAM) |
| CA (2) | CA1048231A (OSRAM) |
| DE (2) | DE2421423C2 (OSRAM) |
| FR (2) | FR2229450B1 (OSRAM) |
| GB (2) | GB1457028A (OSRAM) |
| NL (2) | NL7406132A (OSRAM) |
Families Citing this family (54)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4046856A (en) * | 1974-03-15 | 1977-09-06 | Kawasaki Jukogyo Kabushiki Kaisha | Method for removing sulfur oxide from stack gas |
| US4113840A (en) * | 1974-09-19 | 1978-09-12 | Beamer/Wilkinson & Associates | Process for the removal of sulfur dioxide from exhaust flue gases |
| JPS5232896A (en) * | 1975-09-10 | 1977-03-12 | Mitsubishi Heavy Ind Ltd | Improved wet recovery process of sulfur in the waste gas as gypsum wit h lime |
| US3985860A (en) * | 1975-09-22 | 1976-10-12 | Pullman Incorporated | Method for oxidation of SO2 scrubber sludge |
| JPS53117683A (en) * | 1977-03-23 | 1978-10-14 | Kawasaki Heavy Ind Ltd | Removing method for sulfure oxides contained in exhayst gas |
| DE2722423A1 (de) * | 1977-05-18 | 1978-11-30 | Fritz Dipl Kfm Henning | Verfahren zur chemischen entgiftung der abgase von verbrennungsmotoren und stationaeren heizanlagen |
| US4150096A (en) * | 1977-10-31 | 1979-04-17 | Nelms William M | Process for treating combustion gases |
| DE2755252A1 (de) * | 1977-12-12 | 1979-07-05 | Babcock Bsh Ag | Verfahren zur entfernung von schwefeldioxid aus abgasen unter erzeugung von gips |
| US4164549A (en) * | 1978-01-30 | 1979-08-14 | Dravo Corporation | Lime scrubbing process for sulfur dioxide removal from gases |
| US4177158A (en) * | 1978-02-13 | 1979-12-04 | Chevron Research Company | Method for producing an attrition-resistant adsorbent for sulfur dioxide, the resulting composition and a process using same |
| US4252553A (en) * | 1979-05-11 | 1981-02-24 | Pircon Ladislav J | Process for production of fertilizers |
| US4411879A (en) * | 1981-08-13 | 1983-10-25 | Electric Power Research Institute | Method for enhancing the sulfur capture potential of lime using a filter means in the flue gas |
| US4431618A (en) * | 1982-10-12 | 1984-02-14 | Fmc Corporation | Process control of continuous sodium-limestone flue gas desulfurization system |
| DE3310014A1 (de) * | 1983-03-19 | 1984-09-20 | Gattys Technique S.A., Freiburg/Fribourg | Verfahren zur rueckgewinnung der abwaerme aus den rauchgasen von verbrennungsanlagen |
| US4616574A (en) * | 1984-05-25 | 1986-10-14 | Empire State Electric Energy Research Corp. (Eseerco) | Process for treating combustion systems with pressure-hydrated dolomitic lime |
| DE3435931A1 (de) * | 1984-09-29 | 1986-04-03 | Bayer Ag, 5090 Leverkusen | Verfahren zur entschwefelung von rauchgasen |
| DE3437965A1 (de) * | 1984-10-17 | 1986-04-24 | Knauf-Research-Cottrell GmbH & Co Umwelttechnik KG, 8715 Iphofen | Verfahren und vorrichtung zur abscheidung von so(pfeil abwaerts)3(pfeil abwaerts), schwefelsaeure und schwefelsaeurenebeln aus rauchgasen |
| JPH0658197B2 (ja) * | 1985-03-16 | 1994-08-03 | ザ−ルベルクヴエルケ アクチエンゲゼルシヤフト | １つの蒸気機関の凝縮器または幾つかの蒸気機関の凝縮器から流出する冷却水用冷却塔 |
| US4666690A (en) * | 1985-12-20 | 1987-05-19 | Foster Wheeler Development Corporation | Method for removing sulfur dioxide from flue gases |
| US4710364A (en) * | 1986-09-10 | 1987-12-01 | Advanced Separation Technologies Incorporated | Continuous recovery of sulfur oxide from flue gas |
| US4804523A (en) * | 1987-06-17 | 1989-02-14 | Bechtel Group, Incorporated | Use of seawater in flue gas desulfurization |
| US4834955A (en) * | 1988-04-26 | 1989-05-30 | Nalco Chemical Company | Chemical formulation and combined process for inhibiting deposition and corrosion in cooling water and gypsum scaling in flue gas desulfurization scrubber systems |
| US5039499A (en) * | 1988-04-29 | 1991-08-13 | Dravo Lime Company | Process for desulfurization of sulfur dioxide-containing gas streams |
| US4976936A (en) * | 1989-08-18 | 1990-12-11 | Dravo Lime Company | Flue gas desulfurization with oxidation of calcium sulfite in FGD discharges |
| JP2745748B2 (ja) * | 1989-12-15 | 1998-04-28 | 日本鋼管株式会社 | スラリー定量供給装置 |
| US4996032A (en) * | 1989-12-21 | 1991-02-26 | Dravo Lime Company | Process for removing sulfur dioxide from flue gases |
| US4976937A (en) * | 1990-01-08 | 1990-12-11 | Dravo Lime Company | Sulfur dioxide removal from flue gases with sulfite oxidation inhibition |
| US5082639A (en) * | 1990-11-06 | 1992-01-21 | Dravo Lime Company | Sulfur dioxide removal from gases using a modified lime |
| US5173279A (en) * | 1990-11-21 | 1992-12-22 | Lhoist Recherche Et Developpement S.A. | Method and composition for treating flue or exhaust gases utilizing modified calcium hydroxide |
| US5084255A (en) * | 1991-03-26 | 1992-01-28 | Dravco Lime Company | Sulfur dioxide removal process with gypsum and magnesium hydroxide production |
| US5213782A (en) * | 1991-11-22 | 1993-05-25 | Electric Power Research Institute | Clear liquor scrubbing magnesium-enhanced lime flue gas desulfurization process |
| US5260045A (en) * | 1991-11-22 | 1993-11-09 | Electric Power Research Institute | Modification of magnesium-enhanced lime flue gas desulfurization process to improve solids dewatering |
| US5397549A (en) * | 1991-11-26 | 1995-03-14 | Newman; Dave B. | Apparatus to remove acid gases from a flue gas |
| US5270026A (en) * | 1992-12-11 | 1993-12-14 | Dravo Lime Company | Sulfur dioxide scrubbing process producing purified magnesium hydroxide |
| US5312609A (en) * | 1992-12-31 | 1994-05-17 | Dravo Lime Company | Method of sulfur dioxide removal from gaseous streams with α-hemihydrate gypsum product formation |
| US5558848A (en) * | 1993-08-20 | 1996-09-24 | Moser; Robert E. | Clear liquid acid flue gas desulfurization system |
| DE19502632C2 (de) * | 1994-02-10 | 2002-06-20 | Ver Energiewerke Ag | Verfahren zum Betreiben einer Rauchgasentschwefelungsanlage für ein braunkohlenstaubgefeuertes Kraftwerk |
| CA2147059C (en) * | 1994-04-28 | 1999-08-10 | John W. College | Magnesium-enhanced sulfur dioxide scrubbing with gypsum formation |
| US5486342A (en) * | 1994-06-13 | 1996-01-23 | Electric Power Research Institute | Clear liquor scrubbing of sulfur dioxide with forced oxidation in flue gas desulfurization system |
| DE19522586B4 (de) * | 1995-01-20 | 2004-03-04 | Vattenfall Europe Generation Ag & Co. Kg | Verfahren zum Betreiben einer Rauchgasentschwefelungsanlage für ein braunkohlenstaubgefeuertes Kraftwerk |
| US5614158A (en) * | 1995-10-20 | 1997-03-25 | Dravo Lime Company | Process for removing sulfur dioxide from gases and producing gypsum and purified magnesium hydroxide |
| US5695727A (en) * | 1996-03-05 | 1997-12-09 | Dravo Lime Company | Process for removing sulfur dioxide and nitrogen oxides from a hot gaseous stream with ferrous chelate regeneration |
| US6099816A (en) * | 1996-07-24 | 2000-08-08 | Dravo Lime, Inc. | Process for desulfurizing a sulfur-dioxide containing gas |
| US5827488A (en) * | 1996-09-06 | 1998-10-27 | Dravo Lime Company | Process for removing SO2 and NOx from a gaseous stream |
| US5846286A (en) * | 1997-03-07 | 1998-12-08 | Dravo Lime Company | Method for removing NOx from a gas stream while producing an alkaline earth nitrate fertilizer composition |
| CA2237744A1 (en) * | 1998-05-14 | 1999-11-14 | Robert Ross Hudgins | Catalyst and process for oxidation of sulphur dioxide |
| US6572832B2 (en) * | 2001-03-27 | 2003-06-03 | Carmeuse North America Services, Inc. | Method of removing sulfur dioxide from a gaseous stream in a wet scrubbing unit |
| US20120028200A1 (en) * | 2009-10-20 | 2012-02-02 | James Kenneth Hicks | Burnout of residual carbon in coal fly ash using air cyclones |
| US8968450B1 (en) | 2014-06-17 | 2015-03-03 | Adam Hepburn | Wet scrubber design |
| CN104226088A (zh) * | 2014-09-12 | 2014-12-24 | 中国华能集团清洁能源技术研究院有限公司 | 一种火电厂烟气超低温超净排放系统及方法 |
| WO2019232195A1 (en) * | 2018-05-30 | 2019-12-05 | Chemtreat, Inc. | Flue gas desulfurization system and method for performing flue gas desulfurization |
| US11512036B2 (en) | 2019-08-22 | 2022-11-29 | Innovator Energy, LLC | Process for the production of metal oxides or citric acid |
| DE102019133916B4 (de) * | 2019-12-11 | 2021-07-01 | Accurec Recycling GmbH | Anlage und Verfahren zum Reinigen von bei einer Aufbereitung von elektro-chemischen Energiespeichern entstehenden Prozessgasen |
| EP4337611A4 (en) * | 2021-05-13 | 2025-11-19 | Innovator Energy Llc | PROCESSES FOR THE PRODUCTION OF ALKALINE HYDROXIDES, ALKALINE CARBONATES, ALKALINE BICARBONATES AND/OR ALKALINE EARTHEN SULFATES |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1077243A (en) * | 1911-11-13 | 1913-10-28 | Judson A De Cew | Process of recovering escaping acid-gases from sulfite-towers. |
| US2113198A (en) * | 1934-02-05 | 1938-04-05 | Ici Ltd | Wet purification of gases |
| US2090143A (en) * | 1934-03-10 | 1937-08-17 | Ici Ltd | Gas washing |
| US3520649A (en) * | 1967-09-28 | 1970-07-14 | James P Tomany | System for removal of so2 and fly ash from power plant flue gases |
| US3615199A (en) * | 1967-11-09 | 1971-10-26 | Wellman Lord Inc | Process and apparatus for purifying gas |
| US3632305A (en) * | 1968-12-16 | 1972-01-04 | Universal Oil Prod Co | Process for decontaminating a flue gas system |
| US3632306A (en) * | 1969-02-18 | 1972-01-04 | Chemical Construction Corp | Removal of sulfur dioxide from waste gases |
| US3758668A (en) * | 1970-08-11 | 1973-09-11 | Babcock & Wilcox Co | So2 absorption system with regeneration of absorbent |
| US4014978A (en) * | 1970-08-24 | 1977-03-29 | Combustion Engineering, Inc. | Air pollution control system and method |
-
1973
- 1973-05-14 US US359777A patent/US3919394A/en not_active Expired - Lifetime
- 1973-07-09 US US359777A patent/US3907970A/en not_active Expired - Lifetime
-
1974
- 1974-03-13 US US450752A patent/US3914378A/en not_active Expired - Lifetime
- 1974-05-03 DE DE2421423A patent/DE2421423C2/de not_active Expired
- 1974-05-06 CA CA74199044A patent/CA1048231A/en not_active Expired
- 1974-05-07 NL NL7406132A patent/NL7406132A/xx not_active Application Discontinuation
- 1974-05-07 BE BE143997A patent/BE814641A/xx not_active IP Right Cessation
- 1974-05-10 FR FR7416219A patent/FR2229450B1/fr not_active Expired
- 1974-05-13 GB GB2096474A patent/GB1457028A/en not_active Expired
-
1975
- 1975-01-08 CA CA217,586A patent/CA1043984A/en not_active Expired
- 1975-02-06 GB GB5061/75A patent/GB1480034A/en not_active Expired
- 1975-03-06 DE DE2509692A patent/DE2509692C3/de not_active Expired
- 1975-03-11 BE BE154205A patent/BE826527R/xx not_active IP Right Cessation
- 1975-03-11 FR FR7507498A patent/FR2263810B2/fr not_active Expired
- 1975-03-12 NL NL7502910A patent/NL7502910A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2421423C2 (de) | 1982-11-25 |
| CA1043984A (en) | 1978-12-12 |
| GB1480034A (en) | 1977-07-20 |
| US3914378A (en) | 1975-10-21 |
| FR2263810B2 (OSRAM) | 1980-04-30 |
| US3919394A (en) | 1975-11-11 |
| BE814641A (fr) | 1974-09-02 |
| GB1457028A (en) | 1976-12-01 |
| NL7502910A (nl) | 1975-09-16 |
| DE2509692C3 (de) | 1978-09-28 |
| DE2509692A1 (de) | 1975-09-25 |
| DE2509692B2 (de) | 1978-02-02 |
| FR2263810A2 (OSRAM) | 1975-10-10 |
| US3907970A (en) | 1975-09-23 |
| NL7406132A (OSRAM) | 1974-11-18 |
| FR2229450B1 (OSRAM) | 1979-04-06 |
| FR2229450A1 (OSRAM) | 1974-12-13 |
| BE826527R (fr) | 1975-06-30 |
| DE2421423A1 (de) | 1974-12-05 |
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