CA2199454C - Flue gas desulfurization method and apparatus - Google Patents
Flue gas desulfurization method and apparatus Download PDFInfo
- Publication number
- CA2199454C CA2199454C CA002199454A CA2199454A CA2199454C CA 2199454 C CA2199454 C CA 2199454C CA 002199454 A CA002199454 A CA 002199454A CA 2199454 A CA2199454 A CA 2199454A CA 2199454 C CA2199454 C CA 2199454C
- Authority
- CA
- Canada
- Prior art keywords
- flue gas
- dry scrubber
- lime
- furnace
- particulate collection
- 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 - Lifetime
Links
- 239000003546 flue gas Substances 0.000 title claims abstract description 135
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims description 54
- 238000006477 desulfuration reaction Methods 0.000 title abstract description 7
- 230000023556 desulfurization Effects 0.000 title abstract description 7
- 239000002594 sorbent Substances 0.000 claims abstract description 49
- 239000002002 slurry Substances 0.000 claims abstract description 41
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 39
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 39
- 239000004571 lime Substances 0.000 claims abstract description 39
- 235000019738 Limestone Nutrition 0.000 claims abstract description 33
- 239000006028 limestone Substances 0.000 claims abstract description 33
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 14
- 239000011575 calcium Substances 0.000 claims description 35
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 27
- 239000000920 calcium hydroxide Substances 0.000 claims description 27
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 27
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 27
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 24
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 23
- 229910052791 calcium Inorganic materials 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 17
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 238000006243 chemical reaction Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000003344 environmental pollutant Substances 0.000 claims description 10
- 231100000719 pollutant Toxicity 0.000 claims description 10
- 239000007795 chemical reaction product Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000003009 desulfurizing effect Effects 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000012717 electrostatic precipitator Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 238000011044 inertial separation Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims 2
- 239000007787 solid Substances 0.000 abstract description 25
- 238000002347 injection Methods 0.000 abstract description 22
- 239000007924 injection Substances 0.000 abstract description 22
- 238000002360 preparation method Methods 0.000 abstract description 8
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 238000011068 loading method Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 41
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 21
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 11
- 230000008901 benefit Effects 0.000 description 9
- 238000005203 dry scrubbing Methods 0.000 description 9
- 239000010881 fly ash Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 5
- 229910052753 mercury Inorganic materials 0.000 description 5
- 231100001245 air toxic agent Toxicity 0.000 description 4
- 239000002956 ash Substances 0.000 description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 4
- 239000000292 calcium oxide Substances 0.000 description 4
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 4
- 235000010261 calcium sulphite Nutrition 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- 239000002803 fossil fuel Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 231100001244 hazardous air pollutant Toxicity 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000006227 byproduct Substances 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
- 230000008021 deposition Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hcl hcl Chemical compound Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QPJSUIGXIBEQAC-UHFFFAOYSA-N n-(2,4-dichloro-5-propan-2-yloxyphenyl)acetamide Chemical compound CC(C)OC1=CC(NC(C)=O)=C(Cl)C=C1Cl QPJSUIGXIBEQAC-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010977 unit operation Methods 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
- B01D53/505—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound in a spray drying process
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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/611,605 US5795548A (en) | 1996-03-08 | 1996-03-08 | Flue gas desulfurization method and apparatus |
| US08/611,605 | 1996-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2199454A1 CA2199454A1 (en) | 1997-09-08 |
| CA2199454C true CA2199454C (en) | 2000-02-22 |
Family
ID=24449694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002199454A Expired - Lifetime CA2199454C (en) | 1996-03-08 | 1997-03-07 | Flue gas desulfurization method and apparatus |
Country Status (4)
| Country | Link |
|---|---|
| US (2) | US5795548A (h) |
| CN (1) | CN1089622C (h) |
| CA (1) | CA2199454C (h) |
| IN (1) | IN187047B (h) |
Families Citing this family (76)
| Publication number | Priority date | Publication date | Assignee | Title |
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| ES2252802T3 (es) * | 1997-03-03 | 2006-05-16 | Mitsubishi Heavy Industries, Ltd. | Procedimiento para tratar gas de combustion. |
| US6863875B1 (en) | 1998-04-13 | 2005-03-08 | Mitsubishi Heavy Industries, Ltd. | Flue gas treating system and process |
| PL343889A1 (en) * | 1998-05-08 | 2001-09-10 | Alstom Power Inc | A method of producing so2 |
| PL343890A1 (en) * | 1998-05-08 | 2001-09-10 | Alstom Power Inc | A method of producing so2 |
| DE19837148A1 (de) * | 1998-08-17 | 2000-02-24 | Babcock Anlagen Gmbh | Verfahren zum Reinigen von Rauchgas |
| US6372187B1 (en) * | 1998-12-07 | 2002-04-16 | Mcdermott Technology, Inc. | Alkaline sorbent injection for mercury control |
| CN1088392C (zh) * | 1998-12-24 | 2002-07-31 | 王晋宁 | 干式吸收剂烟气脱硫方法 |
| US6328939B1 (en) | 1999-03-31 | 2001-12-11 | Mcdermott Technology, Inc. | Mercury removal in utility wet scrubber using a chelating agent |
| US6855859B2 (en) * | 1999-03-31 | 2005-02-15 | The Babcock & Wilcox Company | Method for controlling elemental mercury emissions |
| US6503470B1 (en) * | 1999-03-31 | 2003-01-07 | The Babcock & Wilcox Company | Use of sulfide-containing liquors for removing mercury from flue gases |
| US7037474B2 (en) * | 1999-03-31 | 2006-05-02 | The Babcock & Wilcox Company | Use of sulfide-containing liquors for removing mercury from flue gases |
| US6284199B1 (en) * | 1999-03-31 | 2001-09-04 | Mcdermott Technology, Inc. | Apparatus for control of mercury |
| US6197200B1 (en) * | 1999-05-11 | 2001-03-06 | Eastroc Llc | Method of purifying flue gas waste slurries for use in gypsum production |
| US6349658B1 (en) * | 1999-10-28 | 2002-02-26 | Environmental Improvement Systems, Inc. | Auger combustor with fluidized bed |
| US6290921B1 (en) * | 1999-11-03 | 2001-09-18 | Foster Wheeler Enegeria Oy | Method and apparatus for binding pollutants in flue gas |
| US6520099B1 (en) * | 1999-11-04 | 2003-02-18 | Idemitsu Kosan Co., Ltd. | Method for treating combustion ash of coal and method for desulfurization |
| US6444184B1 (en) * | 2000-06-07 | 2002-09-03 | Willard L. Goss | Semidry removal of SO2 in circulating reactor |
| DE10045586C2 (de) * | 2000-09-15 | 2002-07-18 | Alstom Power Boiler Gmbh | Verfahren sowie Einrichtung zur Reinigung von Schwefeldioxid enthaltenden Rauchgasen |
| US6905534B2 (en) * | 2001-04-16 | 2005-06-14 | Electric Power Research Institute, Inc. | Method and apparatus for removing vapor phase contaminants from a flue gas stream |
| CN100427177C (zh) * | 2001-07-24 | 2008-10-22 | 北京现代绿源环保技术有限公司 | 半干半湿烟气脱硫与处理方法及其系统 |
| US6997119B2 (en) | 2002-07-23 | 2006-02-14 | Radway Jerrold E | Combustion emissions control and utilization of byproducts |
| SE523667C2 (sv) * | 2002-09-20 | 2004-05-11 | Alstom Switzerland Ltd | Förfarande och anordning för avskiljning av gasformiga föroreningar från varma gaser medelst partikelformigt absorbentmaterial samt blandare för befuktning av absorbentmaterialet |
| US7060229B2 (en) * | 2002-10-16 | 2006-06-13 | Electric Power Research Institute, Incorporated | Sorbent re-circulation system for mercury control |
| US20040208809A1 (en) * | 2002-12-10 | 2004-10-21 | D Alesandro Raymond J | Method of removing SO3 from flue gases |
| US6939523B2 (en) * | 2002-12-10 | 2005-09-06 | Chemical Lime Company | Method of removing SO3 from flue gases |
| US20050096708A1 (en) * | 2003-10-31 | 2005-05-05 | Seim Gary T. | Atrial antitachycardia pacing management |
| WO2005070529A1 (en) * | 2004-01-13 | 2005-08-04 | Eli Gal | SYSTEM AND METHOD FOR SIMULTANEOUS SOx AND NOx REMOVAL FROM FLUE GAS |
| US20050214189A1 (en) * | 2004-03-29 | 2005-09-29 | Balingit Ronald F | Dry scrubber/collector |
| JP5112078B2 (ja) * | 2005-01-06 | 2013-01-09 | リサーチ・トライアングル・インスティチュート | 酸化亜鉛ベースの吸着剤並びにその作成及び使用方法 |
| US7625537B2 (en) * | 2006-06-12 | 2009-12-01 | Alstom Technology Ltd | Integrated dry and wet flue gas cleaning process and system |
| CN100422643C (zh) * | 2006-06-23 | 2008-10-01 | 杭州新世纪能源环保工程股份有限公司 | 生活垃圾焚烧炉的烟气净化装置 |
| US7615107B2 (en) * | 2006-09-08 | 2009-11-10 | Southern Company Services, Inc. | Method and system for controlling constituents in an exhaust stream |
| US9192889B2 (en) * | 2007-09-13 | 2015-11-24 | The Babcock & Wilcox Company | Bottom ash injection for enhancing spray dryer absorber performance |
| US10208951B2 (en) * | 2007-09-13 | 2019-02-19 | The Babcock & Wilcox Company | Spray dryer absorber and related processes |
| ITMI20072290A1 (it) * | 2007-12-06 | 2009-06-07 | Itea Spa | Processo di combustione |
| KR101686153B1 (ko) * | 2008-07-14 | 2016-12-28 | 게아 프로세스 엔지니어링 아/에스 | 조대 입자들이 동반되는 배가스를 위한 분무 건조 흡착 공정 |
| US7862789B2 (en) * | 2008-08-22 | 2011-01-04 | Alstom Technology Ltd. | Circulating fluidized bed power plant having integrated sulfur dioxide scrubber system with lime feed |
| US8003057B2 (en) | 2008-12-24 | 2011-08-23 | Envirocare International Inc. | Method and apparatus for controlling acid gas emissions from cement plants |
| CN101513589B (zh) * | 2009-03-03 | 2011-07-20 | 桑德环境资源股份有限公司 | 半干法烟气净化方法及装置 |
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| US20100234640A1 (en) * | 2009-03-13 | 2010-09-16 | Albert Calderon | Method for controlling multiple pollutants |
| US20110139046A1 (en) * | 2009-12-16 | 2011-06-16 | Foster Wheeler Energy Corporation | Emissionless Oxyfuel Combustion Process and a Combustion System Using Such a Process |
| FR2961412B1 (fr) * | 2010-06-18 | 2013-03-22 | Lab Sa | Procede et installation d'epuration de fumees de combustion |
| US9657937B2 (en) * | 2010-08-23 | 2017-05-23 | Saudi Arabian Oil Company | Steam generation system having multiple combustion chambers and dry flue gas cleaning |
| US8268276B2 (en) * | 2010-10-06 | 2012-09-18 | Alstom Technology Ltd | Method and system for reducing lime consumption in dry flue gas desulfurization systems |
| FR2969011B1 (fr) * | 2010-12-15 | 2014-08-29 | Lab Sa | Procede et installation d'epuration de fumees de combustion |
| US8329125B2 (en) | 2011-04-27 | 2012-12-11 | Primex Process Specialists, Inc. | Flue gas recirculation system |
| US8828340B2 (en) * | 2011-09-29 | 2014-09-09 | Babcock & Wilcox Power Generation Group, Inc. | Dry sorbent injection during steady-state conditions in dry scrubber |
| US8821823B2 (en) * | 2011-09-29 | 2014-09-02 | Babcock & Wilcox Power Generation Group, Inc. | Dry sorbent injection during non-steady state conditions in dry scrubber |
| CN102806005B (zh) * | 2012-08-25 | 2014-12-17 | 河北华强科技开发有限公司 | 烟气除尘脱硫脱硝的方法及其除尘脱硫脱硝一体化的吸收塔设备 |
| SE538327C2 (sv) * | 2012-08-31 | 2016-05-17 | Marketing I Konsulting Per Anders Brattemo | Förfarande för att rena avgaser |
| CN103017178B (zh) * | 2012-12-22 | 2016-04-13 | 蚌埠玻璃工业设计研究院 | 一种cvd在线镀功能膜废气干法净化装置 |
| WO2014107159A1 (en) * | 2013-01-04 | 2014-07-10 | Pratt & Whitney Rocketdyne, Inc. | Direct steam generator co2 removal system |
| CN103239944B (zh) * | 2013-05-06 | 2015-02-25 | 浙江浙大网新机电工程有限公司 | 用于立式湿烟道的自清洁除雾装置 |
| US8715600B1 (en) | 2013-05-16 | 2014-05-06 | Babcock & Wilcox Power Generation Group, Inc. | Circulating dry scrubber |
| BE1021596B9 (fr) * | 2013-06-25 | 2018-06-18 | Lhoist Rech Et Developpement Sa | Procede et dispositif de traitement de gaz par injection de compose pulverulent. |
| US9192890B2 (en) * | 2013-11-15 | 2015-11-24 | The Babcock & Wilcox Company | Integrated sorbent injection and flue gas desulfurization system |
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| US9352274B2 (en) | 2014-01-02 | 2016-05-31 | Alstom Technology Ltd | Apparatus and method for evaporating waste water and reducing acid gas emissions |
| JP6351278B2 (ja) * | 2014-01-31 | 2018-07-04 | 三菱日立パワーシステムズ株式会社 | 排ガス処理システム |
| CN104208995B (zh) * | 2014-09-05 | 2016-08-24 | 中电投科学技术研究院有限公司 | 一种提高锅炉湿法脱硫净烟气温度的热力装置及方法 |
| CN104548920B (zh) * | 2014-12-03 | 2017-02-22 | 河南神马尼龙化工有限责任公司 | 一种脱硫装置及脱硫方法 |
| CN105056750A (zh) * | 2015-08-10 | 2015-11-18 | 成都华西堂投资有限公司 | 一种干式烟气脱硫脱硝除尘一体化净化系统 |
| CN104998539A (zh) * | 2015-08-10 | 2015-10-28 | 成都华西堂投资有限公司 | 一种干式烟气脱硫脱硝除尘一体化净化工艺 |
| US10350542B2 (en) | 2016-04-29 | 2019-07-16 | General Electric Company | Wet flue gas desulfurization system with zero waste water liquid discharge |
| MX2019001922A (es) * | 2016-08-18 | 2019-06-10 | Pacific Green Technologies Inc | Sistema integrado de depuracion humedo. |
| WO2018184702A1 (en) * | 2017-04-07 | 2018-10-11 | S.A. Lhoist Recherche Et Developpement | Process for flue gas treatment and products for use in said process |
| US11124718B2 (en) * | 2018-02-28 | 2021-09-21 | The Babcock & Wilcox Company | Sorbent utilization improvement by selective ash recirculation from a particulate collector |
| CN111085092A (zh) * | 2020-02-12 | 2020-05-01 | 福建龙净脱硫脱硝工程有限公司 | 燃气锅炉的脱硫除尘装置和脱硫除尘方法 |
| CN111203065A (zh) * | 2020-03-16 | 2020-05-29 | 重庆三峰环境集团股份有限公司 | 一种垃圾焚烧烟气近零排放处理系统及工艺 |
| CN111229016B (zh) * | 2020-03-24 | 2024-11-26 | 苏州思逸环保科技有限公司 | 烟气干式循环脱硫除尘装置 |
| CN111558283A (zh) * | 2020-05-12 | 2020-08-21 | 江苏峰峰鸿运环保科技发展有限公司 | 一种烟气湿式电除尘脱硫一体化装置及方法 |
| CN114247281A (zh) * | 2020-09-22 | 2022-03-29 | 宝山钢铁股份有限公司 | 一种湿法脱硫系统协同处理脱硫灰的方法 |
| CN114247282B (zh) * | 2020-09-22 | 2024-03-08 | 宝山钢铁股份有限公司 | 一种湿法脱硫系统协同处理球团脱硫灰的方法 |
| US11697094B2 (en) | 2021-05-17 | 2023-07-11 | John Jerome Chambless | Air purification system, apparatus and method |
| CN119533150B (zh) * | 2024-12-26 | 2025-10-03 | 昆明理工大学 | 一种钢铁冶炼中石灰窑烟气回收系统及烟气回收利用方法 |
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| US3690808A (en) * | 1970-08-28 | 1972-09-12 | Univ Ohio | Method and apparatus for sulfur dioxide emission control in combustion systems |
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-
1996
- 1996-03-08 US US08/611,605 patent/US5795548A/en not_active Expired - Lifetime
- 1996-03-21 IN IN506CA1996 patent/IN187047B/en unknown
- 1996-06-26 US US08/669,762 patent/US5814288A/en not_active Expired - Lifetime
-
1997
- 1997-03-07 CA CA002199454A patent/CA2199454C/en not_active Expired - Lifetime
- 1997-03-10 CN CN97102963.6A patent/CN1089622C/zh not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1168295A (zh) | 1997-12-24 |
| CA2199454A1 (en) | 1997-09-08 |
| CN1089622C (zh) | 2002-08-28 |
| US5795548A (en) | 1998-08-18 |
| US5814288A (en) | 1998-09-29 |
| IN187047B (h) | 2002-01-05 |
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