JP2017196617A - 廃水を蒸発させて酸性ガス排出を減らすための装置及び方法 - Google Patents
廃水を蒸発させて酸性ガス排出を減らすための装置及び方法 Download PDFInfo
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- JP2017196617A JP2017196617A JP2017087771A JP2017087771A JP2017196617A JP 2017196617 A JP2017196617 A JP 2017196617A JP 2017087771 A JP2017087771 A JP 2017087771A JP 2017087771 A JP2017087771 A JP 2017087771A JP 2017196617 A JP2017196617 A JP 2017196617A
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- Prior art keywords
- flue gas
- wastewater
- waste water
- evaporator device
- conduit
- 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.)
- Granted
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 375
- 238000001704 evaporation Methods 0.000 title claims abstract description 64
- 239000002253 acid Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 437
- 239000003546 flue gas Substances 0.000 claims abstract description 437
- 239000007789 gas Substances 0.000 claims abstract description 74
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000002485 combustion reaction Methods 0.000 claims abstract description 42
- 238000006477 desulfuration reaction Methods 0.000 claims description 71
- 230000023556 desulfurization Effects 0.000 claims description 71
- 230000008020 evaporation Effects 0.000 claims description 32
- 239000000571 coke Substances 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 12
- 239000002250 absorbent Substances 0.000 claims description 10
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- 239000007921 spray Substances 0.000 claims description 10
- 239000002455 scale inhibitor Substances 0.000 claims description 9
- 238000005259 measurement Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 abstract description 76
- 238000001816 cooling Methods 0.000 abstract description 6
- 239000010419 fine particle Substances 0.000 abstract description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 63
- 239000000203 mixture Substances 0.000 description 42
- 239000007788 liquid Substances 0.000 description 23
- 239000000446 fuel Substances 0.000 description 22
- 239000012530 fluid Substances 0.000 description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 19
- 239000013618 particulate matter Substances 0.000 description 18
- 239000003795 chemical substances by application Substances 0.000 description 14
- 238000005260 corrosion Methods 0.000 description 11
- 230000007797 corrosion Effects 0.000 description 11
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 10
- 229910001385 heavy metal Inorganic materials 0.000 description 10
- 150000002736 metal compounds Chemical class 0.000 description 10
- 238000002156 mixing Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 239000011343 solid material Substances 0.000 description 10
- 239000006185 dispersion Substances 0.000 description 9
- 238000006722 reduction reaction Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 239000000428 dust Substances 0.000 description 7
- 239000002803 fossil fuel Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 6
- 229910052753 mercury Inorganic materials 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 235000011941 Tilia x europaea Nutrition 0.000 description 4
- 241001625808 Trona Species 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 235000011116 calcium hydroxide Nutrition 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 3
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 3
- 235000010261 calcium sulphite Nutrition 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
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- 238000013461 design Methods 0.000 description 3
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- 239000000835 fiber Substances 0.000 description 3
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- 239000003345 natural gas Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 229910052711 selenium Inorganic materials 0.000 description 3
- 239000011669 selenium Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 235000017550 sodium carbonate Nutrition 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- -1 NO 2 Chemical compound 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
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- 238000012544 monitoring process Methods 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
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- 238000003303 reheating Methods 0.000 description 2
- 238000009420 retrofitting Methods 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
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- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
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- 230000000717 retained effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B01D53/78—Liquid phase processes with gas-liquid contact
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- B01D3/06—Flash distillation
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- B01D53/14—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 by absorption
- B01D53/1456—Removing acid components
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/16—Treatment of water, waste water, or sewage by heating by distillation or evaporation using waste heat from other processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
- C02F1/12—Spray evaporation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Water Treatment By Sorption (AREA)
- Chimneys And Flues (AREA)
Abstract
Description
1a 導管
2 ガス供給源
2a 配管
3 窒素酸化物除去ユニット
3a 導管
4 バイパス導管、燃料供給源
4a ダクト
5 予熱器
5a ダクト、導管
5b ダクト、導管
6 バイパス導管、流体供給源
6a 配管
7 蒸発器デバイス
7a 出力導管、ダクト
7b 入口
7c 出口
8 出力導管
9 微粒子コレクタ
9a 導管
9b ダクト
10 発電所又は産業プラントシステム
11 固体微粒子導管
13 湿式煙道ガス脱硫システム、導管
13a 導管
15 スタック
16 流体供給源
16a 配管
17 アルカリ性試薬源
19 廃水容器
21 廃水源
23 廃水導管
25 ミキサーデバイス
27 混合物分散導管
27a 混合物供給導管
28 活性炭源
29 固体微粒子再循環導管、リサイクル導管
31 蒸発器容器
50 流量センサ、システムセンサ
51 バイパス導管
52 温度センサ、システムセンサ
53 熱交換器
53a 内部
54 湿度センサ、システムセンサ
55 廃水導管
57 廃水導管
61 ポンプ又はファン
63 スケール抑制剤源
64 ダクト
65 アルカリ性試薬源
67 配管
69 熱源
71 導管
73 導管
75 バルブ
77 フラッシュ容器
77a ダクト、導管
77b 温度センサ
77c ダクト
79 バルブ
80 炭素供給源
81 制御デバイス
82 ダクト
90 分散要素
92 ファン
94 ダンパ又はバルブ
96 バイパス導管
Claims (15)
- 燃焼煙道ガス中の廃水を蒸発させて酸性ガスの排出を低減する方法であって、
廃水を加熱して加熱廃水を生成する熱交換器(53)に廃水を供給するステップと、
フラッシュ容器(77)内で加熱廃水を蒸発させてフラッシュ容器(77)内の残りの廃水を回収するステップと、
残りの廃水を、配置された蒸発器デバイス(7)に、蒸発器デバイス(7)内の残りの廃水を蒸発させるために蒸発器デバイス(7)を通る煙道ガスの流れと共に供給するステップと、
環境に放出するために処理済み煙道ガスを生成するため、煙道ガスから酸性ガスを吸収するために煙道ガスを湿式煙道ガス脱硫システム(13)に供給するステップと
を含む、方法。 - 廃水の加熱及び蒸発の前に、活性炭、活性化コークス、アルカリ性試薬及びスケール抑制剤からなる群から選択される1種以上を廃水に添加するステップをさらに含む、請求項1に記載の方法。
- 煙道ガスとの接触時に煙道ガスから酸性ガスを吸収するために、湿式煙道ガス脱硫システム(13)に吸収液を供給するステップをさらに含む、請求項1に記載の方法。
- 熱交換器(53)内での廃水の加熱が、約175°F〜約350°F(約80℃〜約180℃)の温度である、請求項1に記載の方法。
- 熱交換器(53)における廃水の加熱が、約1bar(絶対)〜約10bar(絶対)、又は約1.4bar(絶対)〜約6bar(絶対)の圧力である、請求項1に記載の方法。
- 蒸発器デバイス(7)が噴霧乾燥器である、請求項1に記載の方法。
- 蒸発器デバイス(7)が、湿った吸収材料を分散させるシステムである、請求項1に記載の方法。
- 廃水を蒸発させ、燃焼煙道ガスから酸性ガスの排出を減少させるためのシステムであって、煙道ガスから酸性ガスを吸収して廃水を生成し、環境に放出するための処理済み煙道ガスを生成する湿式煙道ガス脱硫システム(13)と、
廃水を供給されて、供給された廃水を加熱して加熱廃水を生成する熱交換器(53)と、
加熱廃水を蒸発させ、その内に残った廃水を回収するためのフラッシュ容器(77)と、
その中を通って流れる煙道ガスの流れの中の残りの廃水を蒸発させるための湿式煙道ガス脱硫システム(13)の上流にある蒸発器デバイス(7)と
を備えるシステム(13)。 - 煙道ガスの少なくとも第1の部分が蒸発器デバイス(7)に供給されるように、蒸発器デバイス(7)に流体接続された煙道ガスを生成する燃焼ユニット(1)、
をさらに含む、請求項8に記載のシステム(13)。 - 蒸発器デバイス(7)が、噴霧乾燥器である、請求項8に記載のシステム(13)。
- 蒸発器デバイス(7)が、湿った吸収材料を分散させるシステムである、請求項8に記載のシステム(13)。
- システム(10)の動作条件を調整するように動作可能な制御デバイス(81)をさらに含む、請求項8に記載のシステム(13)。
- 1以上のシステムセンサ(50、52、54)から測定値を受信するように動作可能な制御デバイス(81)をさらに含む、請求項8に記載のシステム(13)。
- 温度、流量及び湿度の1以上のシステム(10)動作条件の断続的又は連続的な測定のための1以上のセンサ(50、52、54)をさらに含む、請求項8に記載のシステム(13)。
- 熱交換器(53)が、廃水を加熱するために、約175°F〜約350°F(約80℃〜約180℃)の温度で、約1bar(絶対)〜約10bar(絶対)、又は約1.4bar(絶対)〜約6bar(絶対)の圧力で動作可能である、請求項8に記載のシステム(13)。
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