EP3980162A1 - A method for ozone-assisted dioxin removal - Google Patents
A method for ozone-assisted dioxin removalInfo
- Publication number
- EP3980162A1 EP3980162A1 EP20731035.0A EP20731035A EP3980162A1 EP 3980162 A1 EP3980162 A1 EP 3980162A1 EP 20731035 A EP20731035 A EP 20731035A EP 3980162 A1 EP3980162 A1 EP 3980162A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- ozone
- catalytic
- unit
- catalyst
- 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.)
- Withdrawn
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 24
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 title 1
- 239000003054 catalyst Substances 0.000 claims abstract description 32
- 230000003197 catalytic effect Effects 0.000 claims abstract description 32
- 239000007789 gas Substances 0.000 claims abstract description 30
- 150000002013 dioxins Chemical class 0.000 claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 18
- 239000003546 flue gas Substances 0.000 claims abstract description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 5
- 239000011149 active material Substances 0.000 claims description 8
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 8
- 239000004744 fabric Substances 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical group N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- 150000004074 biphenyls Chemical class 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000185 dioxinlike effect Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- MWRWFPQBGSZWNV-UHFFFAOYSA-N Dinitrosopentamethylenetetramine Chemical compound C1N2CN(N=O)CN1CN(N=O)C2 MWRWFPQBGSZWNV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 150000004827 dibenzo-1,4-dioxins Chemical class 0.000 description 1
- 150000004826 dibenzofurans Chemical class 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8659—Removing halogens or halogen compounds
- B01D53/8662—Organic halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- 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
- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
- B01D53/8675—Ozone
-
- 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
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20723—Vanadium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/2073—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/106—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/206—Organic halogen compounds
- B01D2257/2064—Chlorine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- 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
- B01D2258/0233—Other waste gases from cement factories
-
- 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
- B01D2258/0291—Flue gases from waste incineration plants
Definitions
- the present invention relates to a method for removing dioxins from a gas, especially a flue gas, using ozone (trioxygen, 0 3) and a catalytic dust filter.
- Selective catalytic reduction is a means, by which nitrogen oxides, also referred to as NOx, can be converted into diatomic nitrogen (N2) and water (3 ⁇ 40) with the aid of a catalyst.
- a gaseous reductant which typically is anhydrous ammonia, aqueous ammonia or urea, is added to a stream of flue gas or exhaust gas and adsorbed onto a catalyst.
- Carbon dioxide (CO2) is a reaction product when urea is used as reductant.
- SCR catalysts, dual function SCR catalysts (V2O5 + Pd) and also noble metal catalysts and Cu/Mn catalysts can oxidize volatile organic compounds (VOCs) at ambient temperatures if ozone is added to the gas.
- VOCs volatile organic compounds
- Ozone is known as a strong oxidizing agent for waste and drinking water treatment, sterilization and
- deodoration It is an allotrope of oxygen that is much less stable than the diatomic allotrope O2, as it is breaking down in the lower atmosphere to yield normal dioxygen.
- ozone is a powerful oxidant (far more so than dioxygen), and so it has many
- oxidation using ozone offers at least the following advantages over chemical alternatives:
- Dioxins and dioxin-like compounds are compounds that can be characterized as highly toxic environmental persistent organic pollutants (POPs) . They are mostly by-products of various industrial processes or - in case of dioxin-like polychlorinated or polybrominated biphenyls - part of intentionally produced mixtures.
- POPs environmental persistent organic pollutants
- the substances referred to as dioxins are grouped into dioxin-based compounds such as polychlorinated dibenzo- p-dioxins (PCDDs), in which two benzene rings
- Dioxins include their isomers which comprise as many as 75 types for dioxin-based compounds and 135 types for furan-based compounds depending on the position and the number of replaced chlorine atoms. In other words, a total of 210 dioxin compounds are known to exist.
- the present invention makes dioxin removal from a gas, especially a flue gas, possible through destruction at low temperature, facilitated by injection of ozone and use of a catalytic dust filter.
- EP 1 940 546 B1 discloses a method for removing nitrogen oxides and dioxin from flue gas using an ammonia reducing agent and a V/T1O2 catalyst comprising natural manganese ore (NMO) within a wide operating temperature range from low
- US 6.077.431 A describes a process for decomposition and removal of dioxins contained in sludge, which comprises slurrying the sludge to be treated, applying ultrasonic radiation to the slurry to decompose dioxins contained in the sludge in a reaction field developed by the ultrasonic radiation and to transfer pollutants to a liquid phase of the slurry, and then separating the slurry into a liquid phase containing the
- JP H0775720 A describes a method for removing dioxins from a gas in a gas treatment plant comprising a catalytic unit by injecting ozone into the gas at a point upstream the catalytic unit which comprises a bag filter for capturing dust. So the gas passes first through a bag filter and then through a catalytic unit housing a catalyst comprising 72 wt% TiC>2, 7 wt% V2O5 and 5 wt% WO3. Further, Pt or Pd may be present in amounts of 0.01 to 3 wt%. The gas is re-heated before passing through the catalytic unit, so it is in its essence something rather different.
- US 2014/0170046 A1 discloses a method and an apparatus for the reduction of organic compounds and other emissions from an industrial plant utilizing a cement or minerals kiln that has a high level of organic compound emissions.
- the apparatus consists of a filter for the control of particulate emissions which has been treated with a catalyst to provide catalytic destruction of gaseous emissions as process gases are passed through the porous medium of the filter.
- dioxins and ozone are mentioned, but the ozone is for hydrocarbon reduction, and the leap to ozone-assisted dioxin removal is not obvious. Also, nothing about an ozone decomposition catalyst is mentioned.
- a standard solution for dioxin removal from a flue gas consists in injection of activated carbon into the gas, e.g. as described in EP 0 930 091 B1.
- the dioxin removal from flue gas is effected through low-temperature destruction facilitated by ozone injection and the use of a catalytic dust filter.
- the invention relates to a method for removing dioxins from a gas, especially a flue gas, in a gas treatment plant comprising a filter unit, wherein ozone is injected into the flue gas at a point upstream the filter unit, and the filter unit includes a catalytic dust filter. More specifically, the present invention relates to a method for removing dioxins from a gas in a gas treatment plant comprising a catalyst unit for
- the catalyst unit includes a dust filter.
- the gas is a flue gas and the catalytic unit is a catalytic dust filter unit.
- the catalytic dust filter is preferably a bag filter.
- Bag filters are well suited for the removal of dust and particulate matter from gas streams.
- Catalytic bag filters have the double utility of being able both to remove particulates from a gas stream and to catalyze one or more desired reactions in the gas.
- a catalytic bag filter typically comprises two or three layers of filter fabric. Each layer can contain different
- a catalytic bag filter can also contain fabric layers that are not catalytically impregnated, for example an outer fabric layer without catalytic impregnation to remove the dust and then with one or more catalytically impregnated fabric layers positioned on the inside of the outer fabric layer.
- catalytically impregnated fabrics can contain the same catalyst or different types of catalyst depending on application.
- a known ozone decomposition catalyst such as manganese or oxides thereof, is added to the filter to remove any residual ozone.
- This known ozone decomposition catalyst such as manganese or oxides thereof, is added to the filter to remove any residual ozone.
- decomposition catalyst is preferably added downstream from the filter unit.
- ozone is not stable at temperatures above 250°C.
- Most industrial flue gas filtration units are operating at temperatures below 200°C, and many are operating around 140-160°C.
- the dioxin is absorbed on activated carbon which is often injected into the filter housing.
- the degree of dioxin removal is limited, and the more stringent emission control requirements cannot be fulfilled using activated carbon alone.
- the dioxin components are not destroyed by using activated carbon. The dioxin is just absorbed on the carbon, which leads to the fact that all the spent activated carbon and the rest of the dust from the process, that it is removed together with, must be disposed of as hazardous waste.
- a catalytic filter can be used, and it can replace the standard filters in the filter housing, but for the catalyst to become effective, the temperature has to be increased. This may require that the plant is revamped and that some of the construction material is replaced. Furthermore, the removal
- the catalytically active material in the catalytic unit consists of one or more metal oxides, in which the metal is selected from the group consisting of V, W, Mn, Cu, Ce, Mo, Fe, Ca and Mg, and one or more porous supports selected from the group consisting of AI2O3, S1O2, SiC and T1O2, optionally in the presence of other elements in a concentration below 1 wt%.
- Said catalytically active material preferably comprises from 1 wt%, 2 wt% or 3 wt% to 4 wt%, 5 wt%,
- catalytically active material comprises from 1 wt%, 2 wt% or 3 wt% to 4 wt%, 5 wt%, 10 wt%, 25 wt% or 50wt% MnCh ⁇
- the porous support comprises T ⁇ O2,
- the catalytically active material preferably further comprises from 0.01 wt%, 0.02 wt% or 0.05 wt% to lwt% of a noble metal, preferably Pd or Pt .
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Treating Waste Gases (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DKPA201900696 | 2019-06-07 | ||
PCT/EP2020/065421 WO2020245243A1 (en) | 2019-06-07 | 2020-06-04 | A method for ozone-assisted dioxin removal |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3980162A1 true EP3980162A1 (en) | 2022-04-13 |
Family
ID=71016520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20731035.0A Withdrawn EP3980162A1 (en) | 2019-06-07 | 2020-06-04 | A method for ozone-assisted dioxin removal |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP3980162A1 (en) |
JP (1) | JP2022535576A (en) |
KR (1) | KR20220019238A (en) |
CN (1) | CN113905805A (en) |
SG (1) | SG11202111319VA (en) |
TW (1) | TW202108230A (en) |
WO (1) | WO2020245243A1 (en) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0775720A (en) * | 1993-07-13 | 1995-03-20 | Kawasaki Heavy Ind Ltd | Treatment of waste gas and catalyst for removing nitrogen oxide and dioxin |
US5451388A (en) * | 1994-01-21 | 1995-09-19 | Engelhard Corporation | Catalytic method and device for controlling VOC. CO and halogenated organic emissions |
KR100375198B1 (en) | 1997-04-25 | 2003-05-12 | 닛뽕고깐 가부시까가이샤 | Method of treating exhaust gas |
US6077431A (en) | 1998-04-20 | 2000-06-20 | Kubota Corporation | Process for decomposition and removal of dioxins contained in sludge |
KR100632591B1 (en) | 2000-12-16 | 2006-10-09 | 에스케이 주식회사 | Catalyst composition for dioxin removal and preparation method thereof |
KR100686381B1 (en) | 2005-09-27 | 2007-02-22 | 한국전력기술 주식회사 | Vanadium/titania-based catalysts comprising of nmo(natural manganese ore) for removing nitrogen oxides and dioxine at wide operation temperature region, and using thereof |
EP2164609B1 (en) * | 2007-06-22 | 2018-08-29 | Carrier Corporation | A method and system for using an ozone generating device for air purification |
US20140170046A1 (en) | 2011-07-29 | 2014-06-19 | Flsmidth A/S | Pollution control system for kiln exhaust |
JP5496381B1 (en) * | 2013-02-28 | 2014-05-21 | 泉株式会社 | Bag filter filter cloth and bag filter device using the same |
TW201834543A (en) * | 2016-07-04 | 2018-09-16 | 托普索公司 | Filter bag assembly |
CA3036953A1 (en) * | 2016-10-07 | 2018-04-12 | Haldor Topsoe A/S | A process for low temperature gas cleaning with ozone and a catalytic bag filter for use in the process |
CN109833770A (en) * | 2017-11-24 | 2019-06-04 | 中科天龙(厦门)环保股份有限公司 | A kind of bioactive molecule coupling cloth bag oxidation catalyst filter technique for incineration flue gas near-zero release |
CN108786788B (en) * | 2018-06-21 | 2021-05-11 | 上海理工大学 | Method for removing dioxin and NO in flue gasxCatalyst, preparation method and application |
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2020
- 2020-06-04 CN CN202080041923.5A patent/CN113905805A/en active Pending
- 2020-06-04 JP JP2021572389A patent/JP2022535576A/en active Pending
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SG11202111319VA (en) | 2021-11-29 |
CN113905805A (en) | 2022-01-07 |
TW202108230A (en) | 2021-03-01 |
WO2020245243A1 (en) | 2020-12-10 |
JP2022535576A (en) | 2022-08-09 |
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