JP6087959B2 - 排ガス処理システム及び排ガス処理方法 - Google Patents
排ガス処理システム及び排ガス処理方法 Download PDFInfo
- Publication number
- JP6087959B2 JP6087959B2 JP2014558635A JP2014558635A JP6087959B2 JP 6087959 B2 JP6087959 B2 JP 6087959B2 JP 2014558635 A JP2014558635 A JP 2014558635A JP 2014558635 A JP2014558635 A JP 2014558635A JP 6087959 B2 JP6087959 B2 JP 6087959B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- chelating agent
- gas treatment
- dehydrated filtrate
- treatment system
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims description 19
- 239000007789 gas Substances 0.000 claims description 167
- 239000000428 dust Substances 0.000 claims description 47
- 239000000706 filtrate Substances 0.000 claims description 43
- 238000006477 desulfuration reaction Methods 0.000 claims description 42
- 230000023556 desulfurization Effects 0.000 claims description 42
- 239000007787 solid Substances 0.000 claims description 41
- 238000001694 spray drying Methods 0.000 claims description 40
- 239000002738 chelating agent Substances 0.000 claims description 38
- 239000002002 slurry Substances 0.000 claims description 32
- 150000003839 salts Chemical class 0.000 claims description 26
- 239000010440 gypsum Substances 0.000 claims description 19
- 229910052602 gypsum Inorganic materials 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 19
- 239000002250 absorbent Substances 0.000 claims description 14
- 230000002745 absorbent Effects 0.000 claims description 14
- 238000001035 drying Methods 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 13
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000003463 adsorbent Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 7
- 238000011084 recovery Methods 0.000 claims description 7
- 229910052815 sulfur oxide Inorganic materials 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 24
- 238000010586 diagram Methods 0.000 description 18
- 229910001385 heavy metal Inorganic materials 0.000 description 16
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 14
- 235000011941 Tilia x europaea Nutrition 0.000 description 14
- 239000004571 lime Substances 0.000 description 14
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 9
- 229910052753 mercury Inorganic materials 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000010828 elution Methods 0.000 description 8
- -1 halogen ions Chemical class 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 5
- 238000004898 kneading Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 4
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 4
- 230000003100 immobilizing effect Effects 0.000 description 4
- 235000013980 iron oxide Nutrition 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 230000004931 aggregating effect Effects 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- RCTYPNKXASFOBE-UHFFFAOYSA-M chloromercury Chemical compound [Hg]Cl RCTYPNKXASFOBE-UHFFFAOYSA-M 0.000 description 3
- 239000000701 coagulant Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 239000011669 selenium Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 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
- 125000002091 cationic group Chemical group 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 2
- 235000014413 iron hydroxide Nutrition 0.000 description 2
- NCNCGGDMXMBVIA-UHFFFAOYSA-L iron(ii) hydroxide Chemical compound [OH-].[OH-].[Fe+2] NCNCGGDMXMBVIA-UHFFFAOYSA-L 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910052711 selenium Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate 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
- 239000004202 carbamide Substances 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 229910000358 iron sulfate Inorganic materials 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/044—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering
- B01D33/048—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are pervious for filtering with endless filtering bands
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
-
- 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
- B01D53/74—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
- B01D53/8631—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
-
- 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
- F23J15/006—Layout of treatment plant
-
- 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
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/10—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it
- F26B3/12—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it in the form of a spray, i.e. sprayed or dispersed emulsions or suspensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- 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
- C02F1/10—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
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
- C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/20—Non-catalytic reduction devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/40—Sorption with wet devices, e.g. scrubbers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Microbiology (AREA)
- Treating Waste Gases (AREA)
- Removal Of Specific Substances (AREA)
- Water Treatment By Sorption (AREA)
- Chimneys And Flues (AREA)
- Processing Of Solid Wastes (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Description
この噴霧乾燥装置では、脱水濾液を完全に乾燥させるが、生成される乾燥塩は、脱硫装置での脱硫排水中に溶解した塩(例えば塩化カルシウム等)が主成分であるため、再溶解し易い、という問題がある。
また、集塵灰に乾燥塩が含まれることで、集塵機の集塵負荷が高くなり、集塵機の容量増加が必要となるという問題がある。
CaCO3+SO2+0.5H2O → CaSO3・0.5H2O +CO2・・・(1)
CaSO3・0.5H2O+0.5O2+1.5H2O → CaSO4・2H2O・・・(2)
このようにして、排ガス18中のSOxは、脱硫装置15において石膏CaSO4・2H2Oの形で捕獲される。
一方、脱水機32からの分離液である脱水濾液33は、噴霧乾燥装置50に送られ、ここで蒸発乾燥させて、無排水化を図るようにしている。
なお、脱水濾液33は圧縮機55から供給される空気56により、噴霧乾燥装置本体51内部へ所定の流量と所定の噴霧液滴粒径とで噴霧手段52により噴霧されている。
また、ノズルの数も1基ではなく、その処理量に応じて複数基設けるようにしてもよい。
また固形分71を分離した排ガス18cは、排ガス送給ラインL13を介して、ガス供給ラインL3に返送している。
これは、固形分71に含まれる塩化カルシウム等の潮解性物質が、温度低下によって水分を吸収することで、固形分71中の湿分が上昇し、付着や固着を起こす場合でも、固定化助剤73を混ぜることによって固形分71中の湿分を低下させることができる。これにより、固形分71をより確実に混練機72まで搬送することが可能となる。
集塵灰16を所定量添加して混練機72で混練することにより、固形化処理が確実となる。
図2に示す本実施例に係る排ガス処理システム10Bでは、固形化処理する混練機72において、固定化助剤73と共に、又は代わりにキレート剤74を添加混合するようにしている。
また、脱硫排水中に溶解した塩の成分は固形分分離機70で分離され、キレート剤74により重金属を固定化するので、乾燥塩の不溶化を図ることができ、これを埋め立て処理した場合においても、有害物質溶出による土壌汚染を防止することができる。
図4に示す排ガス処理システム10Cでは、実施例2のように、キレート剤74を添加する際、このキレート剤74と一緒に、又はキレート剤74の代わりに、鉄酸化物、アルミニウム化合物、高分子凝集剤等の凝集剤78をさらに添加混合するようにしてもよい。
また、高分子凝集剤を投入すると、例えば鉛やカドミウムと反応し不溶化することができる。
図5に示す排ガス処理システム10Dでは、排ガス処理システム10Cのように、凝集剤78を添加すると共に、さらに活性炭等の吸着剤79を投入することで、水銀等の重金属物質を吸着除去させることができる。
図6に示す本実施例に係る排ガス処理システム10Eでは、脱水機32からの脱水濾液33を噴霧乾燥装置50へ供給する脱水濾液導入ラインL21に、脱水濾液33中の重金属を固定化するキレート剤74を添加するものである。
図8に示す本実施例に係る排ガス処理システム10Gは、噴霧乾燥装置50の後流側で固形分71を固定化処理する固定化助剤73の添加を行う処理と、噴霧乾燥装置50の前流側でキレート剤74を添加して事前に重金属を固定化する処理とを併用したものである。
また、活性炭等の吸着剤79を噴霧乾燥装置50の前後において、各々添加するようにしてもよい。
図9に示す本実施例に係る排ガス処理システム10Hは、噴霧乾燥装置50の前流側の、さらに脱水機32の前流側の吸収液スラリー30にキレート剤74を添加している。そして、キレート剤74をが添加することで、吸収液スラリー30中の重金属を、事前に固定化する処理を併用したものである。
11 ボイラ
12 脱硝装置
13 エアヒータ
14 集塵機
15 脱硫装置
16 集塵灰
18 排ガス
32 脱水機
33 脱水濾液
70 固形分分離機
71 固形分
72 混練機
73 固定化助剤
74 キレート剤
76 乾燥機
78 凝集剤
79 吸着剤
Claims (4)
- 燃料を燃焼させるボイラと、
前記ボイラからの排ガスの熱を回収するエアヒータと、
熱回収後の排ガス中の煤塵を除去する集塵機と、
除塵後の排ガス中に含まれる硫黄酸化物を吸収液で除去する脱硫装置と、
前記脱硫装置から排出される吸収液スラリーから石膏を除去する脱水機と、
前記脱水機からの脱水濾液中にキレート剤を添加するキレート剤添加部と、
前記キレート剤を含有する脱水濾液を噴霧する噴霧手段を備えた噴霧乾燥装置と、
前記噴霧乾燥装置に排ガスからの一部の分岐ガスを主煙道から導入する排ガス導入ラインと、
前記噴霧乾燥装置で脱水濾液を乾燥した後の排ガスを主煙道に戻す排ガス送給ラインと、
排ガス送給ラインに設けられ、排ガス中の溶解性を有する乾燥塩を固気分離する固形分分離機と、を具備することを特徴とする排ガス処理システム。 - 請求項1において、
前記キレート剤の添加と共に、又は代わりに、凝集剤又は吸着剤を添加することを特徴とする排ガス処理システム。 - 燃料を燃焼させるボイラからの排ガスの熱をエアヒータにより回収した後、
脱硫装置において、熱回収後の排ガス中に含まれる硫黄酸化物を吸収液で除去する排ガス処理方法において、
前記脱硫装置から排出される吸収液スラリーから石膏を除去した脱水濾液にキレート剤を添加した後、キレート剤を添加した脱水濾液を排ガスの一部により噴霧乾燥すると共に、乾燥処理後の排ガス中の溶解性を有する乾燥塩を固気分離することを特徴とする排ガス処理方法。 - 請求項3において、
前記キレート剤の添加と共に、又は代わりに、凝集剤又は吸着剤を添加することを特徴とする排ガス処理方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013011532 | 2013-01-24 | ||
JP2013011532 | 2013-01-24 | ||
PCT/JP2014/051574 WO2014115854A1 (ja) | 2013-01-24 | 2014-01-24 | 排ガス処理システム及び排ガス処理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2014115854A1 JPWO2014115854A1 (ja) | 2017-01-26 |
JP6087959B2 true JP6087959B2 (ja) | 2017-03-01 |
Family
ID=51227643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014558635A Active JP6087959B2 (ja) | 2013-01-24 | 2014-01-24 | 排ガス処理システム及び排ガス処理方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9895658B2 (ja) |
EP (1) | EP2949377A4 (ja) |
JP (1) | JP6087959B2 (ja) |
WO (1) | WO2014115854A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102215310B1 (ko) * | 2020-11-04 | 2021-02-15 | 주식회사 유성엔지니어링 | 고농도 황화수소를 제거하기 위한 철킬레이트 탈취기 |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6504856B2 (ja) * | 2015-02-27 | 2019-04-24 | 三菱日立パワーシステムズ株式会社 | 無排水化排ガス処理システム及び方法 |
CN107405654A (zh) * | 2015-02-27 | 2017-11-28 | 三菱日立电力系统株式会社 | 废弃物的水泥固化处理装置及其方法、无排水化废气处理系统及其方法 |
US10987626B2 (en) * | 2015-05-21 | 2021-04-27 | The Babcock & Wilcox Company | System and method for reducing liquid discharge from one or more devices |
DE102016108047A1 (de) * | 2016-04-29 | 2017-11-02 | Mitsubishi Hitachi Power Systems Europe Gmbh | Verfahren zum abwasserfreien Betrieb einer nach einem Nassverfahren arbeitenden Rauchgasentschwefelungsanlage eines Dampfkraftwerkes sowie ein Dampfkraftwerk |
JP7005166B2 (ja) * | 2016-04-29 | 2022-01-21 | ゼネラル エレクトリック テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング | 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 |
CN107129094B (zh) * | 2017-06-08 | 2020-07-17 | 上海电力学院 | 基于多热源蒸发脱硫废水的零排放系统 |
CN107321149A (zh) * | 2017-08-23 | 2017-11-07 | 萍乡市华星化工设备填料有限公司 | 煤焦化中低温脱硫脱硝系统 |
CN108380023A (zh) * | 2018-03-12 | 2018-08-10 | 中国科学院过程工程研究所 | 一种烟气脱硫脱硝除尘系统及方法 |
CN108722164B (zh) * | 2018-06-04 | 2020-06-26 | 浙江奇彩环境科技股份有限公司 | 用于火力发电厂的零排放废气处理工艺 |
CN109351156B (zh) * | 2018-11-20 | 2024-02-02 | 东方电气集团东方锅炉股份有限公司 | 一种水泥窑炉尾气二氧化硫的脱除系统和脱除方法 |
CN109663477A (zh) * | 2018-12-30 | 2019-04-23 | 安徽广信农化股份有限公司 | 一种制备氯甲酸乙酯的废料处理方法 |
CN110015797A (zh) * | 2019-04-08 | 2019-07-16 | 上海电力学院 | 火电厂烟气脱硫废水处理系统 |
CN110215820B (zh) * | 2019-05-29 | 2024-02-20 | 华电电力科学研究院有限公司 | 一种新型高效的半干法多级脱硫装置及工作方法 |
CN111701445A (zh) * | 2020-06-08 | 2020-09-25 | 陈宏林 | 一种高盐废水末端固化工艺 |
WO2024015050A1 (en) * | 2022-07-13 | 2024-01-18 | The Texas A&M University System | Membrane separation of emulsions produced from hydrocarbon recovery process |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4377414A (en) * | 1980-09-04 | 1983-03-22 | A/S Niro Atomizer | Shaped cementitious products |
JPS6041529A (ja) | 1983-08-12 | 1985-03-05 | Mitsubishi Heavy Ind Ltd | 排ガス処理装置における排液の処理方法 |
JPH09313881A (ja) * | 1996-05-31 | 1997-12-09 | Ishikawajima Harima Heavy Ind Co Ltd | ボイラ排煙脱硫装置の無排水化装置 |
JPH10137540A (ja) * | 1996-11-13 | 1998-05-26 | Mitsui Mining Co Ltd | 排煙脱硫装置からの排水処理方法 |
JP2012196638A (ja) | 2011-03-22 | 2012-10-18 | Mitsubishi Heavy Ind Ltd | 排ガス処理システム及び排ガス処理方法 |
US8715402B2 (en) * | 2011-03-22 | 2014-05-06 | Mitsubishi Heavy Industries, Ltd. | Air pollution control system and air pollution control method, spray drying device of dewatering filtration fluid from desulfurization discharged water, and method thereof |
-
2014
- 2014-01-24 EP EP14743017.7A patent/EP2949377A4/en not_active Withdrawn
- 2014-01-24 US US14/762,296 patent/US9895658B2/en active Active
- 2014-01-24 WO PCT/JP2014/051574 patent/WO2014115854A1/ja active Application Filing
- 2014-01-24 JP JP2014558635A patent/JP6087959B2/ja active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102215310B1 (ko) * | 2020-11-04 | 2021-02-15 | 주식회사 유성엔지니어링 | 고농도 황화수소를 제거하기 위한 철킬레이트 탈취기 |
Also Published As
Publication number | Publication date |
---|---|
EP2949377A4 (en) | 2016-05-18 |
US20150375166A1 (en) | 2015-12-31 |
US9895658B2 (en) | 2018-02-20 |
WO2014115854A1 (ja) | 2014-07-31 |
JPWO2014115854A1 (ja) | 2017-01-26 |
EP2949377A1 (en) | 2015-12-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6087959B2 (ja) | 排ガス処理システム及び排ガス処理方法 | |
WO2014115408A1 (ja) | 排ガス処理システム及び排ガス処理方法 | |
JP5984712B2 (ja) | 排ガス処理システム及び排ガス処理方法 | |
KR101489044B1 (ko) | 배기 가스 처리 시스템 및 배기 가스 처리 방법 | |
JP7390431B2 (ja) | 無排水化排ガス処理システム及び無排水化排ガス処理方法 | |
JP6665011B2 (ja) | 排ガス処理方法およびシステム | |
KR101425289B1 (ko) | 배기가스 처리 시스템 및 배기가스 처리 방법 | |
KR101475170B1 (ko) | 탈황 배수로부터의 탈수 여과액의 분무 건조 장치, 배기 가스 처리 시스템 및 방법 | |
JP5773756B2 (ja) | 脱水濾液の噴霧乾燥装置及び排ガス処理システム | |
JP5554162B2 (ja) | 排ガス中の水銀処理システム | |
JP2012196638A (ja) | 排ガス処理システム及び排ガス処理方法 | |
US10247414B2 (en) | Coal-fired boiler exhaust gas treatment apparatus and coal-fired boiler exhaust gas treatment method | |
JP2009539605A (ja) | 一体型乾式及び湿式煙道ガス浄化法及びシステム | |
US10005026B2 (en) | Limestone supply device and air pollution control system | |
JP5371172B2 (ja) | 排ガス処理装置及び方法 | |
JP2014057912A (ja) | 排ガス中の水銀処理システム | |
JP2016159220A (ja) | 無排水化排ガス処理システム及び方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20160830 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20161125 |
|
A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20161202 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20170104 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20170202 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6087959 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R313533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |