CN106467313B - 一种燃煤锅炉烟气脱硫生产硫酸镁的装置及工艺 - Google Patents
一种燃煤锅炉烟气脱硫生产硫酸镁的装置及工艺 Download PDFInfo
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- CN106467313B CN106467313B CN201510513002.5A CN201510513002A CN106467313B CN 106467313 B CN106467313 B CN 106467313B CN 201510513002 A CN201510513002 A CN 201510513002A CN 106467313 B CN106467313 B CN 106467313B
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- Prior art keywords
- magnesium sulfate
- magnesium
- flue gas
- slurries
- sulfuric acid
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- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 title claims abstract description 444
- 235000019341 magnesium sulphate Nutrition 0.000 title claims abstract description 226
- 229910052943 magnesium sulfate Inorganic materials 0.000 title claims abstract description 217
- 238000000034 method Methods 0.000 title claims abstract description 120
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 105
- 230000023556 desulfurization Effects 0.000 title claims abstract description 101
- 239000003546 flue gas Substances 0.000 title claims abstract description 99
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000003245 coal Substances 0.000 title description 12
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 136
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 134
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 75
- 210000002966 serum Anatomy 0.000 claims abstract description 66
- 238000005276 aerator Methods 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims description 134
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 124
- 238000010521 absorption reaction Methods 0.000 claims description 75
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 claims description 64
- 239000007789 gas Substances 0.000 claims description 34
- 238000005119 centrifugation Methods 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 239000011777 magnesium Substances 0.000 claims description 31
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 30
- 229910052749 magnesium Inorganic materials 0.000 claims description 29
- 238000005507 spraying Methods 0.000 claims description 28
- 238000002425 crystallisation Methods 0.000 claims description 25
- 239000013078 crystal Substances 0.000 claims description 23
- 230000001590 oxidative effect Effects 0.000 claims description 17
- 239000012452 mother liquor Substances 0.000 claims description 16
- 230000008025 crystallization Effects 0.000 claims description 15
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- 239000004408 titanium dioxide Substances 0.000 claims 1
- ZGBSOTLWHZQNLH-UHFFFAOYSA-N [Mg].S(O)(O)(=O)=O Chemical compound [Mg].S(O)(O)(=O)=O ZGBSOTLWHZQNLH-UHFFFAOYSA-N 0.000 abstract description 8
- 239000012535 impurity Substances 0.000 abstract description 7
- 229960003390 magnesium sulfate Drugs 0.000 description 183
- 239000000047 product Substances 0.000 description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 30
- 229940091250 magnesium supplement Drugs 0.000 description 28
- 230000008569 process Effects 0.000 description 26
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 25
- 239000000347 magnesium hydroxide Substances 0.000 description 25
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 25
- 239000002250 absorbent Substances 0.000 description 14
- 238000004806 packaging method and process Methods 0.000 description 10
- 239000007921 spray Substances 0.000 description 10
- 239000002699 waste material Substances 0.000 description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 239000006227 byproduct Substances 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 238000013459 approach Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 239000011575 calcium Substances 0.000 description 7
- 239000003517 fume Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 238000003916 acid precipitation Methods 0.000 description 6
- 230000003009 desulfurizing effect Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000001816 cooling Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 239000011449 brick Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- QSOMFNQEXNFPNU-UHFFFAOYSA-L magnesium;hydrogen sulfate;hydroxide;hydrate Chemical compound O.O.[Mg+2].[O-]S([O-])(=O)=O QSOMFNQEXNFPNU-UHFFFAOYSA-L 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000010992 reflux Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 2
- 241000790917 Dioxys <bee> Species 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- SMDQFHZIWNYSMR-UHFFFAOYSA-N sulfanylidenemagnesium Chemical compound S=[Mg] SMDQFHZIWNYSMR-UHFFFAOYSA-N 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000002362 anti-crystal effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052564 epsomite Inorganic materials 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229940076230 magnesium sulfate monohydrate Drugs 0.000 description 1
- LFCFXZHKDRJMNS-UHFFFAOYSA-L magnesium;sulfate;hydrate Chemical compound O.[Mg+2].[O-]S([O-])(=O)=O LFCFXZHKDRJMNS-UHFFFAOYSA-L 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000007115 recruitment Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Abstract
Description
序号 | 参数 | 数值 | 单位 |
1 | 脱硫装置入口烟气量(工况) | 1780000 | Nm3/h |
2 | 脱硫装置入口烟气量(标况湿基) | 1148790 | Nm3/h |
3 | 脱硫装置入口烟温 | 110~160 | ℃ |
4 | SO2入口浓度 | 2600 | mg/Nm3 |
5 | 设计脱硫率 | ≥99.7 | % |
6 | 镁硫比 | 1.02 | Mg/S |
7 | 脱硫装置总阻力 | <850 | Pa |
序号 | 项目 | 数量 | 单位 |
1 | 脱硫装置出口烟气量(工况) | 1481520 | Nm3/h |
2 | 排烟温度 | 55 | ℃ |
3 | SO2排放浓度 | <60 | mg/Nm3 |
4 | 硫酸镁产出量 | 10.2 | t/h |
5 | 硫酸镁品质 | >98 | %质量百分比 |
序号 | 项目 | 数量 | 单位 |
1 | 主含量(以MgSO4·7H2O计) | 98.8 | %质量百分比 |
2 | 铁(以Fe计)含量 | 0.005 | %质量百分比 |
3 | 氯化物(以Cl计)含量 | 0.30 | %质量百分比 |
4 | 重金属含量 | 0.001 | %质量百分比 |
5 | 水不溶物含量 | 0.08 | %质量百分比 |
序号 | 项目 | 数量 | 单位 |
1 | 脱硫系统入口烟气量(工况) | 365000 | Nm3/h |
2 | 标态烟气量 | 282420 | Nm3/h |
3 | 脱硫系统入口温度 | 120 | ℃ |
4 | SO2入口浓度 | 4000 | mg/Nm3 |
5 | 镁硫比 | 1.02 | Mg/S |
6 | 脱硫装置总阻力 | Pa | <800 |
序号 | 项目 | 数量 | 单位 |
1 | 脱硫装置出口烟气量(工况) | 386085 | m3/h |
2 | 排烟温度 | 50 | ℃ |
3 | SO2排放浓度 | <100 | mg/Nm3 |
4 | 硫酸镁产出量 | 2.1 | t/h |
5 | 硫酸镁品质 | >98 | %质量百分比 |
Claims (5)
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DE102017104877A1 (de) | 2017-03-08 | 2018-09-13 | K+S Aktiengesellschaft | Magnesiumsulfat-Granulate auf Basis von synthetischem Magnesiumsulfat |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101423234A (zh) * | 2008-11-27 | 2009-05-06 | 六合天融(北京)环保科技有限公司 | 一种制备七水硫酸镁和液态二氧化硫工艺 |
CN103480265A (zh) * | 2013-09-16 | 2014-01-01 | 青岛渤海和合工程技术有限公司 | 一种利用氧化镁治理so2废气同时回收副产品的方法 |
CN104556159A (zh) * | 2014-12-15 | 2015-04-29 | 北京中晶佳镁环境科技股份有限公司 | 烟气脱硫生产亚硫酸镁的装置和方法 |
CN104556157A (zh) * | 2014-12-03 | 2015-04-29 | 北京中晶佳镁环境科技股份有限公司 | 烟气脱硫生产硫酸镁的装置与方法 |
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CN104499586A (zh) * | 2014-10-30 | 2015-04-08 | 陕西大城市政工程有限公司 | Spb自保温条板钢结构外墙自保温系统 |
CN104495886B (zh) * | 2014-12-03 | 2017-01-11 | 北京中晶环境科技股份有限公司 | 生产硫酸镁的装置及方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101423234A (zh) * | 2008-11-27 | 2009-05-06 | 六合天融(北京)环保科技有限公司 | 一种制备七水硫酸镁和液态二氧化硫工艺 |
CN103480265A (zh) * | 2013-09-16 | 2014-01-01 | 青岛渤海和合工程技术有限公司 | 一种利用氧化镁治理so2废气同时回收副产品的方法 |
CN104556157A (zh) * | 2014-12-03 | 2015-04-29 | 北京中晶佳镁环境科技股份有限公司 | 烟气脱硫生产硫酸镁的装置与方法 |
CN104556159A (zh) * | 2014-12-15 | 2015-04-29 | 北京中晶佳镁环境科技股份有限公司 | 烟气脱硫生产亚硫酸镁的装置和方法 |
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Denomination of invention: A device and process for producing magnesium sulfate from coal-fired boiler flue gas desulfurization Effective date of registration: 20231027 Granted publication date: 20171208 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: ENVIRONMENT SUSTAINABLE SYSTEM ENGINEERING TECHNOLOGY Co.,Ltd. Registration number: Y2023110000450 |
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