JPWO2015029853A1 - 排ガス浄化フィルタ及び排ガス浄化装置 - Google Patents
排ガス浄化フィルタ及び排ガス浄化装置 Download PDFInfo
- Publication number
- JPWO2015029853A1 JPWO2015029853A1 JP2015534158A JP2015534158A JPWO2015029853A1 JP WO2015029853 A1 JPWO2015029853 A1 JP WO2015029853A1 JP 2015534158 A JP2015534158 A JP 2015534158A JP 2015534158 A JP2015534158 A JP 2015534158A JP WO2015029853 A1 JPWO2015029853 A1 JP WO2015029853A1
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- zeolite
- gas purification
- oxide
- purification filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000746 purification Methods 0.000 title claims abstract description 52
- 239000010457 zeolite Substances 0.000 claims abstract description 85
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 84
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 84
- 239000007789 gas Substances 0.000 claims abstract description 72
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000013618 particulate matter Substances 0.000 claims abstract description 35
- 239000003054 catalyst Substances 0.000 claims abstract description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 17
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 9
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 8
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 7
- 150000001875 compounds Chemical class 0.000 claims description 11
- 229910052723 transition metal Inorganic materials 0.000 claims description 4
- 150000003624 transition metals Chemical class 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 238000010304 firing Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 20
- 239000011734 sodium Substances 0.000 description 18
- 239000011148 porous material Substances 0.000 description 17
- 239000010936 titanium Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 13
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 12
- 210000004027 cell Anatomy 0.000 description 9
- 230000008929 regeneration Effects 0.000 description 9
- 238000011069 regeneration method Methods 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 8
- 229910006249 ZrSi Inorganic materials 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- 229910052814 silicon oxide Inorganic materials 0.000 description 8
- 238000003786 synthesis reaction Methods 0.000 description 8
- 238000002441 X-ray diffraction Methods 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 7
- 239000002994 raw material Substances 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 229910008484 TiSi Inorganic materials 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 5
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 4
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000001099 ammonium carbonate Substances 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 3
- 229910006501 ZrSiO Inorganic materials 0.000 description 3
- -1 alkali metal salt Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 2
- 229910010100 LiAlSi Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- 229910052792 caesium Inorganic materials 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000006481 Colocasia esculenta Nutrition 0.000 description 1
- 240000004270 Colocasia esculenta var. antiquorum Species 0.000 description 1
- YOHSHTNSFRGVKA-UHFFFAOYSA-H O.[Al+3].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O Chemical compound O.[Al+3].[Al+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O YOHSHTNSFRGVKA-UHFFFAOYSA-H 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 1
- 150000008041 alkali metal carbonates Chemical class 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 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
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000012013 faujasite Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052730 francium Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052680 mordenite Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- ILEXKRKTVIXABY-UHFFFAOYSA-J zirconium(4+);dicarbonate;hydrate Chemical compound O.[Zr+4].[O-]C([O-])=O.[O-]C([O-])=O ILEXKRKTVIXABY-UHFFFAOYSA-J 0.000 description 1
- UXRMCZYAVOHQNB-UHFFFAOYSA-J zirconium(4+);disulfate;hydrate Chemical compound O.[Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O UXRMCZYAVOHQNB-UHFFFAOYSA-J 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
- B01D53/92—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
- B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
- B01D53/9463—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
- B01J29/405—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead
-
- 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
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
- B01D46/2418—Honeycomb filters
-
- 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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/72—Copper
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/40—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
- B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
- B01J29/46—Iron group metals or copper
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/7049—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead
- B01J29/7057—Zeolite Beta
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
- B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
- B01J29/76—Iron group metals or copper
- B01J29/7615—Zeolite Beta
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
-
- 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
- B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
- B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
- F01N3/0222—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being monolithic, e.g. honeycombs
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
-
- 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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- 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]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/202—Alkali metals
-
- 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
- B01D2255/20715—Zirconium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/209—Other metals
- B01D2255/2092—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/915—Catalyst supported on particulate filters
- B01D2255/9155—Wall flow filters
-
- 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
- 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
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- 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
- F01N2370/04—Zeolitic material
-
- 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
- F01N2510/063—Surface coverings for exhaust purification, e.g. catalytic reaction zeolites
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
Description
2NH3+NO+NO2→2N2+3H2O (2)
8NH3+6NO2→7N2+12H2O (3)
本発明で使用する酸化物は、アルカリ金属から選ばれる1種または2種以上の元素と、Zr、Si、Al、及びTiから選ばれる1種または2種以上の元素とを含むことを特徴としている。この構成により、アルカリ金属の高い触媒活性により、内燃機関等から排出されるPMを低温で燃焼することが可能となるとともに、アルカリ金属の溶出を抑えるものと考えられる。
本発明で使用するゼオライトは、シリカ/アルミナ比が15以上であることを特徴とする。シリカ/アルミナ比の下限値は、20であることが好ましく、25であることがより好ましい。シリカ/アルミナ比の上限値は、100であることが好ましく、50であることがより好ましい。この構成により、還元剤によるNOxのSCR触媒として作用し、酸化物から溶出するアルカリ金属イオンの影響を受けることなく、NOxを還元除去できるものと考えられる。還元剤としては、例えば尿素、炭酸アンモニウム、ヒドラジン、炭酸水素アンモニウム等のアンモニア前駆物質、またはアンモニア自体を用いることができる。
本発明の排ガス浄化フィルタは、酸化物とゼオライトを備えることを特徴としており、PMを低温で燃焼することができ、かつNOxを還元除去することができる。また、本発明の排ガス浄化フィルタは、その優れた特性を損なわない範囲で、酸化触媒、三元触媒、酸素吸蔵能触媒等を備えることもできる。
本発明の排ガス浄化装置は、上記本発明の排ガス浄化フィルタを備えている。具体的には、上記本発明の排ガス浄化フィルタの他に、例えば、排ガス浄化フィルタに還元剤等を供給する手段、堆積したPMを分解するため排ガス浄化フィルタを加熱する手段等をさらに備えている。
(合成例1)
炭酸ナトリウム33.2質量部、酸化ジルコニウム38.6質量部、及び酸化ケイ素28.2質量部を混合し、1200℃で4時間焼成した。得られた粒子状固体が、X線回折によりNa4Zr2Si3O12の単相であることを確認した。
炭酸カリウム36.2質量部、酸化ジルコニウム32.3質量部、及び酸化ケイ素31.5質量部を混合し、1200℃で4時間焼成した。得られた粒子状固体が、X線回折によりK2ZrSi2O7の単相であることを確認した。
炭酸ナトリウム32.3質量部、酸化アルミニウム31.1質量部、及び酸化ケイ素36.6質量部を混合し、1200℃で4時間焼成した。得られた粒子状固体が、X線回折によりNaAlSiO4の単相であることを確認した。
炭酸カリウム38.4質量部、酸化アルミニウム28.3質量部、及び酸化ケイ素33.3質量部を混合し、1200℃で4時間焼成した。得られた粒子状固体が、X線回折によりKAlSiO4の単相であることを確認した。
炭酸カリウム49.7質量部、酸化チタン28.7質量部、及び酸化ケイ素21.6質量部を混合し、1000℃で4時間焼成した。得られた粒子状固体が、X線回折によりK2TiSiO5の単相であることを確認した。
炭酸カリウム22.4質量部、酸化チタン77.6質量部を混合し、1000℃で4時間焼成した。得られた粒子状固体が、X線回折によりK2Ti6O13の単相であることを確認した。
炭酸ナトリウム28.5質量部、酸化ニオブ71.5質量部を混合し、950℃で4時間焼成した。得られた粒子状固体が、X線回折によりNaNbO3の単相であることを確認した。
〔担体の作製と酸化物の担持〕
酸化物(Na4Zr2Si3O12)10質量部に対し、チタン酸アルミニウム(丸ス釉薬社製)90質量部、黒鉛10質量部、メチルセルロース10質量部、及び脂肪酸石鹸0.5質量部を配合し、さらに水を適当量添加して混練し、押出成型可能な坏土を得た。
次に、ZSM‐5型ゼオライト(HSZ‐840、東ソー株式会社製)40重量部と酢酸銅2重量部とを湿式で混合し、これをシリカゾル20重量部と水40重量部とに混ぜ合わせスラリーを調製した。調製したスラリーに上記で得たハニカム構造体を浸漬した。浸漬後600℃〜700℃で約4時間焼成し、排ガス浄化フィルタを製造した。使用したゼオライトのシリカ/アルミナ比は表1に示した。
酸化物をK2ZrSi2O7に変更した以外は、実施例1と同様の方法で行った。細孔径は11μmであり、気孔率は53%であった。
酸化物をNaAlSiO4に変更し、担体の作製における成型体の焼成温度を1100℃に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は51%であった。
酸化物をKAlSiO4に変更し、担体の作製における成型体の焼成温度を1100℃に変更し、また、ゼオライトをβゼオライト(HSZ‐940、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は53%であった。
酸化物をK2TiSiO5に変更し、担体の作製における成型体の焼成温度を850℃に変更し、また、ゼオライトをβゼオライト(HSZ‐930、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は11μmであり、気孔率は53%であった。
酸化物をK2Ti6O13に変更し、担体の作製における成型体焼成温度を850℃に変更し、また、ゼオライトをβゼオライト(HSZ‐930、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は9μmであり、気孔率は49%であった。
酸化物をNaAlSiO4に変更し、担体の作製における成型体の焼成温度を1100℃に変更し、また、ゼオライトをZSM‐5型ゼオライト(HSZ‐820、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は51%であった。
酸化物をNaAlSiO4に変更し、担体の作製における成型体の焼成温度を1100℃に変更し、また、ゼオライトをZSM‐5型ゼオライト(HSZ‐830、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は51%であった。
酸化物をKAlSiO4に変更し、担体の作製における成型体の焼成温度を1100℃に変更し、また、ゼオライトをZSM‐5型ゼオライト(HSZ‐820、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は53%であった。
酸化物をKAlSiO4に変更し、担体の作製における成型体の焼成温度を1100℃に変更し、また、ゼオライトをZSM‐5型ゼオライト(HSZ‐830、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は53%であった。
酸化物をKAlSiO4に変更し、担体の作製における成型体の焼成温度を1100℃に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は53%であった。
ゼオライトをY型ゼオライト(HSZ‐350:東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は11μmであり、気孔率は51%であった。
酸化物をNaAlSiO4に変更し、担体の作製における成型体の焼成温度を1100℃に変更し、また、ゼオライトをY型ゼオライト(HSZ‐350、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は51%であった。
酸化物をNaNbO3に変更し、担体の作製における成型体の焼成温度を850℃に変更した以外は、実施例1と同様の方法で行った。細孔径は9μmであり、気孔率は47%であった。
酸化物を使用せず、担体の作製における成型体の焼成温度を1450℃に変更し、また、ゼオライトをβゼオライト(HSZ‐930、東ソー株式会社製)に変更した以外は、実施例1と同様の方法で行った。細孔径は13μmであり、気孔率は56%であった。
予め排ガス浄化フィルタを尿素水溶液に含浸し、50℃にて乾燥しておき、排ガス浄化フィルタを模擬排ガス排気ラインに設置する。その後、模擬排ガス(O2:10%、N2:90%、NO:50ppm、NO2:50ppm、CO:60ppm、)を300℃まで上昇させ、NOx濃度を測定した。結果を表1に示した。
予め排ガス浄化フィルタの初期重量を測定しておき、ディーゼルエンジンの排気ラインに、酸化触媒(DOC)と排ガス浄化フィルタを順に設置する。次いで、ディーゼルエンジンを始動させ、低温でPMを所定量(約8g/L)堆積させた後、一度排ガス浄化フィルタを取り外し、堆積したPMの重量を測定する。
Claims (8)
- アルカリ金属から選ばれる1種または2種以上の元素と、Zr、Si、Al、及びTiから選ばれる1種または2種以上の元素とを含む酸化物と、
シリカ/アルミナ比が15以上であるゼオライトとを備える、排ガス浄化フィルタ。 - 前記酸化物を、排ガス中に含まれる粒子状物質を燃焼させる触媒として含み、前記ゼオライトを、窒素酸化物を窒素に還元する触媒として含む、請求項1に記載の排ガス浄化フィルタ。
- 前記酸化物が、A2XZrXSiYO3x+2Y、AXAlXSiYO2x+2Y、A2XTiXSiYO3x+2Y、A2XTiYOx+2Y、A2XZrYOx+2Y、またはAXAlYOx/2+3Y/2(各式中、Aは1種または2種以上のアルカリ金属を示し、Xは1≦X≦2を満たす正の実数を示し、Yは1≦Y≦6を満たす正の実数を示す。)で表される化合物の1種または2種以上である、請求項1または2に記載の排ガス浄化フィルタ。
- 前記ゼオライトが、モルデナイト型ゼオライト、フォージャサイト型ゼオライト、A型ゼオライト、L型ゼオライト、βゼオライト、及びZSM-5型ゼオライトから選ばれる1種または2種以上である、請求項1〜3のいずれか一項に記載の排ガス浄化フィルタ。
- 前記ゼオライトが、遷移金属を含んでいる、請求項1〜4のいずれか一項に記載の排ガス浄化フィルタ。
- 前記酸化物と前記ゼオライトが、担体に担持されている、請求項1〜5のいずれか一項に記載の排ガス浄化フィルタ。
- 前記担体が、ハニカムフィルタである、請求項6に記載の排ガス浄化フィルタ。
- 請求項1〜7のいずれか一項に記載の排ガス浄化フィルタを備える、排ガス浄化装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013178813 | 2013-08-30 | ||
JP2013178813 | 2013-08-30 | ||
PCT/JP2014/071772 WO2015029853A1 (ja) | 2013-08-30 | 2014-08-20 | 排ガス浄化フィルタ及び排ガス浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2015029853A1 true JPWO2015029853A1 (ja) | 2017-03-02 |
JP6121542B2 JP6121542B2 (ja) | 2017-04-26 |
Family
ID=52586415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015534158A Active JP6121542B2 (ja) | 2013-08-30 | 2014-08-20 | 排ガス浄化フィルタ及び排ガス浄化装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20160199822A1 (ja) |
EP (1) | EP3040122A4 (ja) |
JP (1) | JP6121542B2 (ja) |
KR (1) | KR20160048082A (ja) |
CN (1) | CN105492119A (ja) |
WO (1) | WO2015029853A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105152177B (zh) * | 2015-06-16 | 2017-08-25 | 中南大学 | 一种锂离子电池用硅酸钛锂负极材料及其制备方法 |
EP3320973A1 (en) * | 2015-07-08 | 2018-05-16 | Otsuka Chemical Holdings Co., Ltd. | Method for producing exhaust gas purifying filter, exhaust gas purifying filter, and exhaust gas purification device |
CN108290115A (zh) * | 2015-07-15 | 2018-07-17 | 圣母大学 | 用于改善的水热耐久性的玻璃催化剂组合物 |
CN105226281A (zh) * | 2015-10-20 | 2016-01-06 | 复旦大学 | 锂离子电池用的硅酸钛锂负极材料及制备方法和应用 |
FR3061037B1 (fr) * | 2016-12-23 | 2021-07-02 | Ifp Energies Now | Solide porteur d'oxygene a base de tectosilicates, son procede de preparation et son utilisation pour un procede d'oxydo-reduction en boucle chimique |
WO2018181100A1 (ja) * | 2017-03-31 | 2018-10-04 | 大塚化学株式会社 | ハニカム構造体及び排ガス浄化装置 |
WO2018198999A1 (ja) * | 2017-04-26 | 2018-11-01 | 大塚化学株式会社 | ハニカム構造体及び排ガス浄化装置 |
CN111589446A (zh) * | 2020-06-24 | 2020-08-28 | 东莞诺维新材料科技有限公司 | 一种用于去除柴油车尾气中颗粒物的催化剂及制备方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002062468A1 (fr) * | 2001-02-02 | 2002-08-15 | Hitachi, Ltd. | Catalyseur de traitement des gaz d'émission et moteur à combustion interne pourvu d'un tel catalyseur |
JP2007289844A (ja) * | 2006-04-24 | 2007-11-08 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
WO2009141889A1 (ja) * | 2008-05-20 | 2009-11-26 | イビデン株式会社 | ハニカム構造体 |
JP2010223076A (ja) * | 2009-03-23 | 2010-10-07 | Honda Motor Co Ltd | 排気浄化装置 |
JP2011220123A (ja) * | 2010-04-05 | 2011-11-04 | Toyota Motor Corp | 排気浄化触媒 |
WO2012046577A1 (ja) * | 2010-10-04 | 2012-04-12 | 大塚化学株式会社 | 排ガス浄化フィルタ及びその製造方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3231520A (en) * | 1962-12-26 | 1966-01-25 | Texaco Inc | Catalyst and method of making same |
JPH07114902B2 (ja) * | 1987-12-22 | 1995-12-13 | 株式会社豊田中央研究所 | 可燃性微粒子及び窒素酸化物除去用フィルター |
JP3900563B2 (ja) | 1996-10-23 | 2007-04-04 | 松下電器産業株式会社 | 排ガス浄化触媒及びこれを用いた排ガス浄化フィルタ |
US6797663B2 (en) * | 2001-02-26 | 2004-09-28 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Catalyst for exhaust gas purification |
EP1332788B1 (en) * | 2002-02-01 | 2014-09-24 | Cataler Corporation | Catalyst for purifying exhaust gases |
KR20070047322A (ko) * | 2004-07-26 | 2007-05-04 | 다우 글로벌 테크놀로지스 인크. | 개선된 촉매된 매연 필터 |
US7501105B2 (en) * | 2004-07-29 | 2009-03-10 | N.E. Chemcat Corporation | NOx reduction catalyst having excellent low-temperature characteristics |
US7981834B2 (en) * | 2006-03-16 | 2011-07-19 | Ict Co., Ltd. | Adsorbent for hydrocarbons, catalyst for exhaust gas purification and method for exhaust gas purification |
JP2007296514A (ja) * | 2006-04-07 | 2007-11-15 | Ngk Insulators Ltd | 触媒体とその製造方法 |
RU2506989C2 (ru) | 2007-04-26 | 2014-02-20 | Джонсон Мэттей Паблик Лимитед Компани | Катализаторы скв: переходный металл/цеолит |
JP2009214095A (ja) * | 2008-02-11 | 2009-09-24 | Okayama Univ | 未燃カーボンを用いてディーゼルエンジン排ガス中の窒素酸化物を浄化するための触媒と方法 |
JP5549839B2 (ja) * | 2008-08-19 | 2014-07-16 | 東ソー株式会社 | 高耐熱性β型ゼオライト及びそれを用いたSCR触媒 |
JP2010118490A (ja) * | 2008-11-13 | 2010-05-27 | Bridgestone Corp | 電磁波シールド性光透過性窓材の製造方法、及び電磁波シールド性光透過性窓材 |
EP2415509B1 (en) * | 2009-03-31 | 2015-07-22 | NGK Insulators, Ltd. | Honeycomb filter and method of manufacturing same |
JP5531501B2 (ja) * | 2009-08-21 | 2014-06-25 | 三菱自動車工業株式会社 | 排ガス浄化装置 |
US8293198B2 (en) * | 2009-12-18 | 2012-10-23 | Basf Corporation | Process of direct copper exchange into Na+-form of chabazite molecular sieve, and catalysts, systems and methods |
US9352307B2 (en) * | 2010-04-08 | 2016-05-31 | Basf Corporation | Cu-CHA/Fe-MFI mixed zeolite catalyst and process for the treatment of NOx in gas streams |
EP3103979B1 (de) * | 2010-09-13 | 2018-01-03 | Umicore AG & Co. KG | Katalysator zur entfernung von stickoxiden aus dem abgas von dieselmotoren |
KR20120095747A (ko) * | 2011-02-21 | 2012-08-29 | 한국에너지기술연구원 | 다기능성 배기가스 정화필터 및 이를 이용한 배기가스 정화장치 |
JP5604497B2 (ja) * | 2012-10-31 | 2014-10-08 | 株式会社キャタラー | 排ガス浄化用触媒 |
-
2014
- 2014-08-20 JP JP2015534158A patent/JP6121542B2/ja active Active
- 2014-08-20 WO PCT/JP2014/071772 patent/WO2015029853A1/ja active Application Filing
- 2014-08-20 US US14/911,755 patent/US20160199822A1/en not_active Abandoned
- 2014-08-20 KR KR1020167004784A patent/KR20160048082A/ko not_active Application Discontinuation
- 2014-08-20 CN CN201480047854.3A patent/CN105492119A/zh active Pending
- 2014-08-20 EP EP14840243.1A patent/EP3040122A4/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002062468A1 (fr) * | 2001-02-02 | 2002-08-15 | Hitachi, Ltd. | Catalyseur de traitement des gaz d'émission et moteur à combustion interne pourvu d'un tel catalyseur |
JP2007289844A (ja) * | 2006-04-24 | 2007-11-08 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
WO2009141889A1 (ja) * | 2008-05-20 | 2009-11-26 | イビデン株式会社 | ハニカム構造体 |
JP2010223076A (ja) * | 2009-03-23 | 2010-10-07 | Honda Motor Co Ltd | 排気浄化装置 |
JP2011220123A (ja) * | 2010-04-05 | 2011-11-04 | Toyota Motor Corp | 排気浄化触媒 |
WO2012046577A1 (ja) * | 2010-10-04 | 2012-04-12 | 大塚化学株式会社 | 排ガス浄化フィルタ及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3040122A1 (en) | 2016-07-06 |
EP3040122A4 (en) | 2017-03-29 |
KR20160048082A (ko) | 2016-05-03 |
US20160199822A1 (en) | 2016-07-14 |
WO2015029853A1 (ja) | 2015-03-05 |
JP6121542B2 (ja) | 2017-04-26 |
CN105492119A (zh) | 2016-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6121542B2 (ja) | 排ガス浄化フィルタ及び排ガス浄化装置 | |
KR102428707B1 (ko) | 배기가스를 처리하기 위한 분자체 촉매 | |
JP7304383B2 (ja) | バイメタルモレキュラーシーブ触媒 | |
JP7125391B2 (ja) | 排ガス処理のための骨格外の鉄及び/又はマンガンを有するlta触媒 | |
JP6403658B2 (ja) | 低シリカ/アルミナ比を有する菱沸石ゼオライト触媒 | |
US9597636B2 (en) | Zoned catalyst for treating exhaust gas | |
KR102288100B1 (ko) | Aei 제올라이트의 합성 | |
CN101296748B (zh) | 脱氮催化剂、蜂窝结构型脱氮催化剂及使用其的脱氮方法 | |
JP6377086B2 (ja) | 排ガスを処理するための触媒としてのアルミノ珪酸塩又はシリコアルミノホスフェートモレキュラーシーブ/マンガン八面体モレキュラーシーブ | |
KR102370137B1 (ko) | 배기가스 처리 방법 및 시스템 | |
JP6199532B2 (ja) | 排ガス浄化フィルタの製造方法、排ガス浄化フィルタ及び排ガス浄化装置 | |
JP2016131918A (ja) | 排ガス浄化フィルタの製造方法、排ガス浄化フィルタ及び排ガス浄化装置 | |
WO2018181100A1 (ja) | ハニカム構造体及び排ガス浄化装置 | |
JP2016107259A (ja) | 排ガス浄化フィルタ及びその製造方法、並びに排ガス浄化装置 | |
KR20170020337A (ko) | 배기 가스 정화 촉매, 배기 가스 정화 장치 및 필터, 및 해당 촉매의 제조 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20170316 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20170316 |
|
A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20170316 |
|
A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20170322 |
|
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: 20170328 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20170329 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6121542 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |