JP7436456B2 - 窒素酸化物の選択的触媒還元(scr)で使用するための触媒 - Google Patents
窒素酸化物の選択的触媒還元(scr)で使用するための触媒 Download PDFInfo
- Publication number
- JP7436456B2 JP7436456B2 JP2021510219A JP2021510219A JP7436456B2 JP 7436456 B2 JP7436456 B2 JP 7436456B2 JP 2021510219 A JP2021510219 A JP 2021510219A JP 2021510219 A JP2021510219 A JP 2021510219A JP 7436456 B2 JP7436456 B2 JP 7436456B2
- Authority
- JP
- Japan
- Prior art keywords
- oxide
- catalyst
- titanium
- vanadium
- coating
- 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
- 239000003054 catalyst Substances 0.000 title claims description 48
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims description 42
- 238000010531 catalytic reduction reaction Methods 0.000 title claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 34
- 239000000758 substrate Substances 0.000 claims description 34
- 239000002002 slurry Substances 0.000 claims description 23
- 239000010936 titanium Substances 0.000 claims description 22
- 230000003197 catalytic effect Effects 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 20
- 150000001875 compounds Chemical class 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 18
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims description 16
- 239000002243 precursor Substances 0.000 claims description 15
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 14
- 239000011248 coating agent Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 14
- 229910052719 titanium Inorganic materials 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 229910052720 vanadium Inorganic materials 0.000 claims description 11
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 11
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical group CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 claims description 10
- 150000003141 primary amines Chemical class 0.000 claims description 9
- 229910044991 metal oxide Inorganic materials 0.000 claims description 8
- 150000004706 metal oxides Chemical class 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 150000003682 vanadium compounds Chemical class 0.000 claims description 6
- 229910052684 Cerium Inorganic materials 0.000 claims description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims description 5
- 229910052726 zirconium Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000002105 nanoparticle Substances 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- -1 platinum group metals Chemical class 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000011164 primary particle Substances 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 16
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 12
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 11
- 229910010413 TiO 2 Inorganic materials 0.000 description 9
- 229910021529 ammonia Inorganic materials 0.000 description 8
- 239000011149 active material Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000002270 dispersing agent Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 3
- 150000002736 metal compounds Chemical class 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 2
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 2
- 229910010293 ceramic material Inorganic materials 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- ALTWGIIQPLQAAM-UHFFFAOYSA-N metavanadate Chemical compound [O-][V](=O)=O ALTWGIIQPLQAAM-UHFFFAOYSA-N 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000007725 thermal activation Methods 0.000 description 2
- 229910001930 tungsten oxide Inorganic materials 0.000 description 2
- 229910001935 vanadium oxide Inorganic materials 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910003089 Ti–OH Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000001994 activation Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- QGAVSDVURUSLQK-UHFFFAOYSA-N ammonium heptamolybdate Chemical compound N.N.N.N.N.N.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Mo].[Mo].[Mo].[Mo].[Mo].[Mo].[Mo] QGAVSDVURUSLQK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000007210 heterogeneous catalysis Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical compound CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- 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
- B01D53/8628—Processes characterised by a specific catalyst
-
- 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
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/16—Clays or other mineral silicates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/40—Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0027—Powdering
- B01J37/0036—Grinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0203—Impregnation the impregnation liquid containing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0213—Preparation of the impregnating solution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0219—Coating the coating containing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0234—Impregnation and coating simultaneously
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
- B01J37/0244—Coatings comprising several layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/03—Precipitation; Co-precipitation
- B01J37/038—Precipitation; Co-precipitation to form slurries or suspensions, e.g. a washcoat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/088—Decomposition of a metal salt
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
- F01N3/2835—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support fibrous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- 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
- B01D2255/20707—Titanium
-
- 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
- B01D2255/20769—Molybdenum
-
- 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
- B01D2255/20776—Tungsten
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/65—Catalysts not containing noble metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/92—Dimensions
- B01D2255/9202—Linear dimensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2330/00—Structure of catalyst support or particle filter
- F01N2330/10—Fibrous material, e.g. mineral or metallic wool
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Description
4NO+4NH3+O2→4N2+6H2O I
NO+NO2+2NH3→2N2+3H2O II
・モノリシック基材と、
・チタンの酸化物を含む酸化金属担体、及びバナジウムの酸化物を含む触媒性金属酸化物を含み、バナジウム/チタンの質量比が0.07~0.26であるコーティングAと、を含む、触媒に関する。
a)モノリシック基材を提供するステップと、
b)酸化チタンを含む酸化金属担体の粒子上に分散されたバナジウム化合物を含む1つ以上の触媒金属前駆体化合物を含む、水性ウォッシュコートスラリーを提供するステップと、
c)モノリシック基材にウォッシュコートスラリーを含浸させるステップと、
d)含浸されたモノリシック基材を150~600℃の温度で乾燥及び熱活性化して、1つ以上の金属前駆体化合物をそれらの触媒活性形態に変換するステップと、を含む、プロセスに関する。
i)1つ以上の触媒金属前駆体化合物及び酸化金属担体を水に添加し、液体に酸を連続的に添加して、1つ以上の触媒前駆体金属化合物の表面電荷が負であり、酸化金属担体のゼータ電位が正である値で、液体のpHを維持するステップ、
ii)1つ以上の触媒金属前駆体化合物を酸化金属担体の表面上に吸着させるステップ、並びに任意選択的に、
iii)このように調製されたウォッシュコートスラリーの7超のpH値を得る量の分散剤を、このように調製された液体に添加するステップ、によって調製される。
a)バナジン酸アンモニウム/チタニアを含有するウォッシュコートスラリーの調製
1. 2250gの脱塩水を2630gのTiO2と混合する。
2. 381gのメタバナジン酸アンモニア(ammonia meta vanadate、AMV)を連続撹拌下で添加する。NH4VO3/TiO2-の比は0.16である。
3. pHを監視し、連続的に増加させる。
4. pHは、濃硝酸で4.0~4.5の間隔に調節する。
5. 数時間後の液体のpHは一定のままであり、少なくとも24時間の間一定の撹拌下にスラリーを放置する。しかしながら、pHは3時間毎に調節する必要がある。
得られた液体は赤色を有し、100gのエチルアミン(水中70%)(又はpH~9.2~9.5まで)を添加する。
液体は象牙色になり、その後250~400nmの粒径(D50)まで粉砕する。
任意選択的に、5.6gの界面活性剤を添加して、波形基材上のウォッシュコートの取り込みを増加させる。
得られた触媒が0.21のV/Ti比を有することを除いて、実施例1の方法を繰り返した。
得られた触媒が0.24のV/Ti比を有することを除いて、実施例1の方法を繰り返した。
得られた触媒が0.25のV/Ti比を有することを除いて、実施例1の方法を繰り返した。
a)バナジン酸アンモニウム/チタニアを含有するウォッシュコートスラリーの調製
1. 2250gの脱塩水を2630gのTiO2と混合する。
2. 381gのメタバナジン酸アンモニア(AMV)を連続撹拌下で添加する。NH4VO3/TiO2-の比は0.16である。
3. pHを監視し、連続的に増加させる。
4. pHは、濃硝酸で4.0~4.5の間隔に調節する。
5. 数時間後の液体のpHは一定のままであり、少なくとも24時間の間一定の撹拌下にスラリーを放置する。しかしながら、pHは3時間毎に調節する必要がある。
得られた液体は黄色を有し、100gのエチルアミン(水中70%)(又はpH~9.2~9.5まで)を添加する。
液体は淡黄色になり、その後600~700nmの粒径(D50)まで粉砕する。
任意選択的に、5.6gの界面活性剤を添加して、波形基材上のウォッシュコートの取り込みを増加させる。
実施例1~4に従って得た水性スラリーの各々の一部を乾燥させ、このように得た粉末を、500ppmのNO、533ppmのNH3、10体積%のO2、4%のH2O、及び残りがN2を含有するガス組成を有するNOのアンモニアSCRで試験した。試験結果を図1に要約する。
Claims (16)
- 窒素酸化物の選択的触媒還元(SCR)で使用するための触媒であって、
・モノリシック基材と、
・チタンの酸化物を含む酸化金属担体、及びバナジウムの酸化物からなる触媒性金属酸化物を含み、バナジウム/チタンの質量比が0.07~0.26であるコーティングAと、を含む、触媒。 - 前記モノリシック基材が、ガラス繊維の波形シートを含む、請求項1に記載の触媒。
- バナジウムの酸化物からなる前記コーティングAの触媒性金属酸化物が、五酸化バナジウム(V2O5)を含む、請求項1又は2に記載の触媒。
- チタンの酸化物を含む前記コーティングAの酸化金属担体が、二酸化チタンを含む、請求項1~3の何れか一項に記載の触媒。
- チタンの酸化物を含む前記コーティングAの酸化金属担体が、加えて、アルミニウム、セリウム、ジルコニウム、又は混合物の酸化物、これらの酸化物のうちの少なくとも1つを含む混合酸化物若しくは化合物を含む、請求項4に記載の触媒。
- 前記酸化金属担体が、10~150nmの一次粒径を有する単一の又は凝集した二酸化チタンのナノ粒子のいずれかを含む、請求項1~5の何れか一項に記載の触媒。
- 前記バナジウム/チタンの質量比が、0.1~0.21である、請求項1~6の何れか一項に記載の触媒。
- 白金族金属を含まない、請求項1~7の何れか一項に記載の触媒。
- 前記モノリシック基材直上かつコーティングAの下に追加のコーティングBを含む、請求項1~8の何れか一項に記載の触媒。
- コーティングBが、チタンの酸化物、及び任意選択的に、アルミニウム、セリウム、ジルコニウム、又は混合物の酸化物、これらの酸化物のうちの少なくとも1つを含む混合酸化物若しくは化合物を含む、請求項9に記載の触媒。
- 請求項1~10の何れか一項に記載の触媒を調製するためのプロセスであって、
a)モノリシック基材を提供するステップと、
b)酸化チタンを含む酸化金属担体の粒子上に分散されたバナジウム化合物からなる1つ以上の触媒金属前駆体化合物を含む、水性ウォッシュコートスラリーを提供するステップと、
c)前記モノリシック基材に前記ウォッシュコートスラリーを含浸させるステップと、
d)前記含浸されたモノリシック基材を150~600℃の温度で乾燥及び熱活性化して、前記1つ以上の金属前駆体化合物をそれらの触媒活性形態に変換するステップと、を含む、プロセス。 - バナジウム化合物からなる前記触媒金属前駆体化合物が、メタバナジン酸アンモニウムである、請求項11に記載のプロセス。
- 前記水性ウォッシュコートスラリーが、その液体に可溶性の第一級アミンを含む、請求項11又は12に記載のプロセス。
- 前記第一級アミンが、モノエチルアミンである、請求項13に記載のプロセス。
- 酸化チタンを含む酸化金属担体の粒子上に分散されたバナジウム化合物を含む前記1つ以上の触媒金属前駆体化合物が、200~750nmの粒径D50を有する、請求項11~14のいずれか一項に記載のプロセス。
- 自動車及び定置型源からのオフガスを処理し、前記オフガスに含有される窒素酸化物を選択的に還元するための方法であって、前記オフガスを請求項1~10の何れか一項に記載の触媒を通過させる、方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18191131.4A EP3616786A1 (en) | 2018-08-28 | 2018-08-28 | Catalyst for use in the selective catalytic reduction (scr) of nitrogen oxides |
EP18191131.4 | 2018-08-28 | ||
EP19171394.0A EP3730210A1 (en) | 2019-04-26 | 2019-04-26 | Catalyst ceramic candle filter for combined particulate removal and the selective catalytic reduction (scr) of nitrogen-oxides |
EP19171394.0 | 2019-04-26 | ||
PCT/EP2019/072706 WO2020043662A1 (en) | 2018-08-28 | 2019-08-26 | Catalyst for use in the selective catalytic reduction (scr) of nitrogen oxides |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021534963A JP2021534963A (ja) | 2021-12-16 |
JP7436456B2 true JP7436456B2 (ja) | 2024-02-21 |
Family
ID=67688792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2021510219A Active JP7436456B2 (ja) | 2018-08-28 | 2019-08-26 | 窒素酸化物の選択的触媒還元(scr)で使用するための触媒 |
Country Status (7)
Country | Link |
---|---|
US (2) | US11426709B2 (ja) |
EP (1) | EP3843895A1 (ja) |
JP (1) | JP7436456B2 (ja) |
KR (1) | KR20210046786A (ja) |
CN (1) | CN112584925A (ja) |
TW (1) | TW202019556A (ja) |
WO (1) | WO2020043662A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3730210A1 (en) * | 2019-04-26 | 2020-10-28 | Umicore Ag & Co. Kg | Catalyst ceramic candle filter for combined particulate removal and the selective catalytic reduction (scr) of nitrogen-oxides |
KR20210046786A (ko) * | 2018-08-28 | 2021-04-28 | 우미코레 아게 운트 코 카게 | 질소 산화물의 선택적 촉매 환원(scr)에 사용하기 위한 촉매 |
DE102022130469A1 (de) | 2022-11-17 | 2024-05-23 | Umicore Ag & Co. Kg | Verfahren und Vorrichtung zum Herstellen eines Substrats für eine Abgasnachbehandlungseinrichtung |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002361092A (ja) | 2001-06-06 | 2002-12-17 | Babcock Hitachi Kk | 排ガス脱硝用触媒スラリ、脱硝用触媒およびそれらの製造方法 |
JP2008221203A (ja) | 2007-02-13 | 2008-09-25 | Babcock Hitachi Kk | 窒素酸化物除去用触媒及び窒素酸化物除去方法 |
JP2015181971A (ja) | 2014-03-20 | 2015-10-22 | 株式会社日本触媒 | 船舶排ガス処理触媒および排ガス処理方法 |
WO2017072138A1 (en) | 2015-10-28 | 2017-05-04 | Haldor Topsøe A/S | Monolithic honeycomb oxidation catalyst and method of preparation thereof |
JP2017536228A (ja) | 2014-10-14 | 2017-12-07 | ハルドール・トプサー・アクチエゼルスカベット | 触媒ファブリックフィルターの製造方法及び触媒ファブリックフィルター |
WO2018018406A1 (en) | 2016-07-26 | 2018-02-01 | Basf Corporation | Supported catalyst, monolithic selective catalytic reduction (scr) catalyst, preparation method therefor, and method for nitrogen oxides removal |
WO2018066659A1 (ja) | 2016-10-05 | 2018-04-12 | 日立造船株式会社 | 触媒担持構造体およびその製造方法 |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57150435A (en) * | 1981-03-14 | 1982-09-17 | Ngk Insulators Ltd | Catalyst for removal of nitrogen oxide |
ATE45295T1 (de) * | 1985-08-19 | 1989-08-15 | Siemens Ag | Verfahren zum herstellen eines katalysators zur selektiven reduktion von stickoxiden in abgasen. |
DE3805564A1 (de) * | 1988-02-23 | 1989-08-31 | Siemens Ag | Katalysator zur minderung der stickoxide und verfahren zu seiner herstellung |
JPH02198634A (ja) * | 1989-01-25 | 1990-08-07 | Babcock Hitachi Kk | 窒素酸化物除去用触媒の製造方法 |
ES2083301T3 (es) | 1993-03-26 | 1996-04-01 | Siemens Ag | Catalizador para la reduccion de oxido de nitrogeno en el gas de escape de un motor de combustion interna. |
DE19844758C1 (de) * | 1998-09-29 | 2000-07-06 | Siemens Ag | Verfahren zur Herstellung eines Katalysatorkörpers |
US20010049339A1 (en) * | 2000-04-11 | 2001-12-06 | Adolf Schafer-Sindlinger | Process for the preparation of a vanadia SCR-catalyst supported on titania |
US7820590B2 (en) * | 2003-09-27 | 2010-10-26 | Korea Power Engineering Company, Inc. | Method for preparing vanadium/titania-based catalyst for removing nitrogen oxide at low temperature |
KR101065242B1 (ko) * | 2010-12-14 | 2011-09-19 | 한국과학기술연구원 | 선택적 탈질 환원 촉매 및 이산화 티타늄 수화물 슬러리를 이용한 그 제조방법 |
EP2522418A1 (de) * | 2011-05-11 | 2012-11-14 | Sachtleben Pigment GmbH | Rohstoffe für vanadiumfreie oder vanadiumreduzierte DeNOx-Katalysatoren und Verfahren zu ihrer Herstellung |
KR101102714B1 (ko) * | 2011-06-27 | 2012-01-05 | 한국전력기술 주식회사 | 건식 볼 밀링을 이용한 질소산화물 제거용 촉매의 제조 방법 |
DK3721994T3 (da) * | 2012-08-24 | 2023-01-23 | Tronox Llc | Katalysatorbærer omfattende titandioxid, molybdænoxid, phosphor og silicimdioxid |
EP2719454A1 (en) * | 2012-10-11 | 2014-04-16 | Treibacher Industrie AG | Thermostable Vanadia SCR catalyst and a process of preparation thereof |
WO2016188989A1 (en) * | 2015-05-26 | 2016-12-01 | Treibacher Industrie Ag | Process for the preparation of titania/metal vanadate based catalyst compositions |
EP3380233B1 (en) * | 2015-11-27 | 2022-06-01 | Umicore Ag & Co. Kg | Method of preparation of a monolithic catalyst for selective catalytic reduction of nitrogen oxides |
WO2017216690A1 (en) * | 2016-06-13 | 2017-12-21 | Basf Corporation | Catalytic article comprising a coprecipitate of vanadia, tungsta, and titania |
KR20210046786A (ko) * | 2018-08-28 | 2021-04-28 | 우미코레 아게 운트 코 카게 | 질소 산화물의 선택적 촉매 환원(scr)에 사용하기 위한 촉매 |
EP3730210A1 (en) * | 2019-04-26 | 2020-10-28 | Umicore Ag & Co. Kg | Catalyst ceramic candle filter for combined particulate removal and the selective catalytic reduction (scr) of nitrogen-oxides |
-
2019
- 2019-08-26 KR KR1020217009206A patent/KR20210046786A/ko unknown
- 2019-08-26 CN CN201980055160.7A patent/CN112584925A/zh active Pending
- 2019-08-26 EP EP19756202.8A patent/EP3843895A1/en active Pending
- 2019-08-26 JP JP2021510219A patent/JP7436456B2/ja active Active
- 2019-08-26 WO PCT/EP2019/072706 patent/WO2020043662A1/en unknown
- 2019-08-26 US US17/268,852 patent/US11426709B2/en active Active
- 2019-08-28 TW TW108130829A patent/TW202019556A/zh unknown
-
2022
- 2022-07-21 US US17/870,347 patent/US11772075B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002361092A (ja) | 2001-06-06 | 2002-12-17 | Babcock Hitachi Kk | 排ガス脱硝用触媒スラリ、脱硝用触媒およびそれらの製造方法 |
JP2008221203A (ja) | 2007-02-13 | 2008-09-25 | Babcock Hitachi Kk | 窒素酸化物除去用触媒及び窒素酸化物除去方法 |
JP2015181971A (ja) | 2014-03-20 | 2015-10-22 | 株式会社日本触媒 | 船舶排ガス処理触媒および排ガス処理方法 |
JP2017536228A (ja) | 2014-10-14 | 2017-12-07 | ハルドール・トプサー・アクチエゼルスカベット | 触媒ファブリックフィルターの製造方法及び触媒ファブリックフィルター |
WO2017072138A1 (en) | 2015-10-28 | 2017-05-04 | Haldor Topsøe A/S | Monolithic honeycomb oxidation catalyst and method of preparation thereof |
WO2018018406A1 (en) | 2016-07-26 | 2018-02-01 | Basf Corporation | Supported catalyst, monolithic selective catalytic reduction (scr) catalyst, preparation method therefor, and method for nitrogen oxides removal |
WO2018066659A1 (ja) | 2016-10-05 | 2018-04-12 | 日立造船株式会社 | 触媒担持構造体およびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3843895A1 (en) | 2021-07-07 |
US11772075B2 (en) | 2023-10-03 |
TW202019556A (zh) | 2020-06-01 |
US11426709B2 (en) | 2022-08-30 |
CN112584925A (zh) | 2021-03-30 |
US20220111355A1 (en) | 2022-04-14 |
KR20210046786A (ko) | 2021-04-28 |
US20220355274A1 (en) | 2022-11-10 |
JP2021534963A (ja) | 2021-12-16 |
WO2020043662A1 (en) | 2020-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11772075B2 (en) | Catalyst for use in the selective catalytic reduction (SCR) of nitrogen oxides | |
RU2638662C1 (ru) | Способ получения катализированного тканевого фильтра и катализированный тканевый фильтр | |
JP5982280B2 (ja) | 排気ガスを選択的に接触還元するための触媒組成物 | |
KR101102714B1 (ko) | 건식 볼 밀링을 이용한 질소산화물 제거용 촉매의 제조 방법 | |
KR100911797B1 (ko) | 질소 산화물 제거용 촉매, 그 제조 방법 및 질소 산화물의제거 방법 | |
EP3616786A1 (en) | Catalyst for use in the selective catalytic reduction (scr) of nitrogen oxides | |
JP4989545B2 (ja) | 窒素酸化物接触還元用触媒 | |
JP5164821B2 (ja) | 窒素酸化物選択的接触還元用触媒 | |
CN116209518A (zh) | Scr催化剂组合物和包含所述催化剂组合物的scr催化制品 | |
WO2020119763A1 (en) | A method for production of vanadium catalysts | |
JP7421571B2 (ja) | 複合粒子状物質除去及び窒素酸化物の選択的触媒還元(scr)のための触媒セラミックキャンドルフィルタ | |
JP5156173B2 (ja) | 窒素酸化物除去用触媒の製造法 | |
JP7433416B2 (ja) | 燃焼エンジンの排気ガスからのアンモニア及び窒素酸化物の排出量低減のための触媒 | |
KR100382051B1 (ko) | 이산화황을 포함하고 있는 배가스 중의 질소산화물을저온에서 제거하기 위한 선택적 환원촉매 | |
CN112423881A (zh) | 具有改善的耐热性的沸石以及使用该沸石的催化剂复合物 | |
JP4335583B2 (ja) | 排ガス浄化用触媒とその製造方法 | |
JPWO2020216460A5 (ja) | ||
JP2010017687A (ja) | 排ガス浄化用触媒及び製造方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220812 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230620 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230703 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20231002 |
|
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: 20240109 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20240208 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7436456 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |