CN107008257A - 微粒燃烧催化剂 - Google Patents
微粒燃烧催化剂 Download PDFInfo
- Publication number
- CN107008257A CN107008257A CN201611016049.1A CN201611016049A CN107008257A CN 107008257 A CN107008257 A CN 107008257A CN 201611016049 A CN201611016049 A CN 201611016049A CN 107008257 A CN107008257 A CN 107008257A
- Authority
- CN
- China
- Prior art keywords
- combustion catalyst
- catalyst
- particulate combustion
- particulate
- carrier
- 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.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 110
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 66
- 229910000510 noble metal Inorganic materials 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 19
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 18
- 239000000956 alloy Substances 0.000 claims abstract description 18
- 229910052737 gold Inorganic materials 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 16
- 239000007864 aqueous solution Substances 0.000 claims description 33
- 229910052763 palladium Inorganic materials 0.000 claims description 22
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 11
- 150000002500 ions Chemical class 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 7
- 229910052779 Neodymium Inorganic materials 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 229910052718 tin Inorganic materials 0.000 claims description 6
- 229910052727 yttrium Inorganic materials 0.000 claims description 6
- 229910001260 Pt alloy Inorganic materials 0.000 claims description 5
- 229910052712 strontium Inorganic materials 0.000 claims description 5
- 229910001020 Au alloy Inorganic materials 0.000 claims description 4
- 229910001252 Pd alloy Inorganic materials 0.000 claims description 4
- 229910052777 Praseodymium Inorganic materials 0.000 claims 1
- 229910052788 barium Inorganic materials 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 abstract description 16
- 230000003647 oxidation Effects 0.000 abstract description 12
- 239000004071 soot Substances 0.000 abstract description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 32
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 20
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 18
- 239000010931 gold Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 10
- 229910001961 silver nitrate Inorganic materials 0.000 description 10
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 239000011259 mixed solution Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000005275 alloying Methods 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 2
- RCFVMJKOEJFGTM-UHFFFAOYSA-N cerium zirconium Chemical compound [Zr].[Ce] RCFVMJKOEJFGTM-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- ZXVONLUNISGICL-UHFFFAOYSA-N 4,6-dinitro-o-cresol Chemical group CC1=CC([N+]([O-])=O)=CC([N+]([O-])=O)=C1O ZXVONLUNISGICL-UHFFFAOYSA-N 0.000 description 1
- 229910002060 Fe-Cr-Al alloy Inorganic materials 0.000 description 1
- 229910000846 In alloy Inorganic materials 0.000 description 1
- 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 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 150000004985 diamines Chemical class 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
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910003465 moissanite Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium oxide Inorganic materials [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 1
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/50—Silver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2027—Metallic material
- B01D39/2031—Metallic material the material being particulate
- B01D39/2034—Metallic material the material being particulate sintered or bonded by inorganic agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
- B01D39/2082—Other inorganic materials, e.g. ceramics the material being filamentary or fibrous
-
- 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
- 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
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
-
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/42—Platinum
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/48—Silver or gold
- B01J23/52—Gold
-
- 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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/66—Silver or gold
-
- B01J35/30—
-
- B01J35/56—
-
- 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
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
- B01D2239/0478—Surface coating material on a layer of the filter
-
- 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
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/104—Silver
-
- 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
- B01D2255/106—Gold
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/40—Mixed oxides
- B01D2255/407—Zr-Ce mixed oxides
-
- 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
- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
- F01N2510/065—Surface coverings for exhaust purification, e.g. catalytic reaction for reducing soot ignition temperature
Abstract
本发明提供微粒燃烧催化剂、该微粒燃烧催化剂的制造方法、涂覆有该微粒燃烧催化剂的微粒过滤器、该微粒过滤器的制造方法、以及具备涂覆有该微粒燃烧催化剂的微粒过滤器的排气净化装置,所述微粒燃烧催化剂中,担载于载体的催化剂成分由Ag 85~20at%与选自Pd、Pt和Au中的至少1种贵金属15~80at%的合金构成,该微粒燃烧催化剂耐热性优异、可在低温下将煤烟氧化除去、且由于仅借助氧也可进行氧化反应故不论排气中的NOx 浓度如何也可在低温下将煤烟氧化除去。
Description
本申请是基于申请日为2010年6月18日、申请号为201080030082.4、发明名称为“微粒燃烧催化剂”的申请所提交的分案申请。
技术领域
本发明涉及微粒燃烧催化剂、该微粒燃烧催化剂的制造方法、微粒过滤器、该微粒过滤器的制造方法和排气净化装置,更具体地涉及可以将从柴油内燃机排出的微粒氧化除去的微粒燃烧催化剂、该微粒燃烧催化剂的制造方法,涂覆有该微粒燃烧催化剂的微粒过滤器、和具备涂覆有该微粒燃烧催化剂的微粒过滤器的排气净化装置。
背景技术
从柴油发动机排出的排气气体含有氮氧化物(NOx )或微粒(粒子状物质),这些物质如果直接释放至大气中则成为大气污染的主要原因。因此,这些物质要求受到大幅限制。作为用于除掉微粒的有效手段,已提出了用于使SOF(Soluble Organic Fraction)(可溶性有机成分)燃烧的流通型氧化催化剂、或使用了用于捕集煤烟的柴油机微粒过滤器(PDF)的柴油机排气装置捕集系统。但是,该DPF中,需要将捕集到的微粒连续地氧化除去以再生DPF。
作为迄今为止提出的连续再生系统,包括使用将Pt等昂贵的贵金属担载于载体,例如由氧化锆、氧化钒、氧化铈等无机氧化物制成的载体而得到的催化剂(例如,参照专利文献1、2和3)的系统;和涉及NO2的连续再生方法(例如,参照专利文献4)等。该连续再生方法中,为了使NO氧化形成NO2而需要在DPF的上游安装Pt等氧化催化剂,从而成本增加。此外,该涉及NO2的反应中NOx 与C的比率也被认为是问题,多受使用条件制约。
此外,作为可以不使用昂贵的贵金属而在低温下将煤烟氧化除去、由于仅借助氧也可进行氧化反应故不论排气中的NOx 浓度如何也可在低温下将煤烟氧化除去的微粒燃烧催化剂,提出了由载体和第一催化剂构成的微粒燃烧催化剂,其中,所述载体由铈氧化物的量为5~50质量%的铈-锆复合氧化物构成,所述第一催化剂担载于该载体且由Ag和Ru中的至少一种金属或该金属的氧化物构成(参照专利文献5)。
现有技术文献
专利文献
专利文献1 : 日本特开平10-047035号公报
专利文献2 : 日本特开2003-334443号公报
专利文献3 : 日本特开2004-058013号公报
专利文献4 : 日本专利第3012249号公报
专利文献5 : 日本专利第4144898号公报。
发明内容
发明要解决的技术问题
本发明的目的在于提供:耐热性比专利文献5中记载的微粒燃烧催化剂更优异、可在低温下将煤烟氧化除去、且由于仅借助氧也可进行氧化反应故不论排气中的NOx 浓度如何也可在低温下将煤烟氧化除去的微粒燃烧催化剂、该微粒燃烧催化剂的制造方法、涂覆有该微粒燃烧催化剂的微粒过滤器、该微粒过滤器的制造方法、和具备涂覆有该微粒燃烧催化剂的微粒过滤器的排气净化装置。
用于解决技术问题的手段
本发明人为实现上述目的而进行了深入研究,结果发现:通过使用Ag与选自Pd、Pt和Au中的至少1种贵金属的合金来作为微粒燃烧催化剂的催化剂成分可以实现上述目的,从而完成了本发明。
即,本发明的微粒燃烧催化剂的特征在于,担载于载体的催化剂成分由Ag 85~20at%与选自Pd、Pt和Au中的至少1种贵金属15~80at%的合金构成。
另外,本发明的微粒燃烧催化剂的制造方法的特征在于,将含有Ag离子的水溶液、与含有选自Pd、Pt和Au中的至少1种贵金属的离子的水溶液混合,向该混合水溶液中加入作为催化剂载体的粉末并进行搅拌,并将所得浆料蒸发至干,进行干燥处理后,在空气中700~1000℃下,烧成〔50-0.047×温度(℃)〕小时以上。
进一步地,本发明的微粒过滤器的特征在于涂覆有上述微粒燃烧催化剂,另外,本发明的排气净化装置的特征在于具备涂覆有上述微粒燃烧催化剂的微粒过滤器。
本发明的微粒过滤器的制造方法的特征在于,将载体与粘合剂成分和水一起混合、粉碎,将所得浆料涂覆于基材过滤器,进行烧成,使作为催化剂成分的含有Ag离子的水溶液与含有选自Pd、Pt和Au中的至少1种贵金属的离子的水溶液的混合水溶液浸渗于所形成的洗涂层(wash-coating layer),进行干燥处理后,在空气中700~1000℃下,烧成〔50-0.047×℃温度(℃)〕小时以上。
发明效果
本发明的微粒燃烧催化剂的耐热性优异,可在低温下将煤烟氧化除去,且由于仅借助氧也可进行氧化反应故不论排气中的NOx 浓度如何均可在低温下将煤烟氧化除去。
附图说明
[图1] 表示Pd含量发生了变化的微粒燃烧催化剂的燃烧起始温度(Tig)的图表。
[图2] 表示Pd含量、热处理温度发生了变化的微粒燃烧催化剂的XRD的峰漂移量的变化的图表。
[图3] 表示峰位置的变化(漂移量)状态的说明图。
具体实施方式
本发明的微粒燃烧催化剂中,为了使燃烧起始温度降低,使用Ag与选自Pd、Pt和Au中的至少1种贵金属的合金、优选Ag与Pd和/或Pt的合金来作为催化剂成分。但是,合金中的选自Pd、Pt和Au中的至少1种贵金属的含量小于20at%时或超过85at%时,燃烧起始温度的降低效果不充分,因而使用Ag 85~20at%、优选80~30at%与选自Pd、Pt和Au中的至少1种贵金属15~80at%、优选20~70at%的合金来作为催化剂成分。另外,从为了降低成本而减少昂贵贵金属的使用量的观点出发,理想的是使Ag为80~65at%、使贵金属为20~35at%。应予说明,使用Pd作为贵金属时,最能发挥在低温下使微粒燃烧的效果。
本发明的微粒燃烧催化剂中,以相对于载体100质量份优选为0.5~30质量份、更优选为0.5~15质量份(质量%)的量来使用作为催化剂成分的合金。合金相对于载体的量小于0.5质量%时,不能充分发挥作为催化剂的效果,另外,超过30质量%时,催化剂相对于所担载的合金的单位质量的活性有降低的倾向。应予说明,本发明的微粒燃烧催化剂除了上述合金之外,还可以并用由Ag、Pt、Pd或Au的单体构成的催化剂。
本发明的微粒燃烧催化剂中,还可以使用在将Ag用作催化剂成分的微粒燃烧催化剂中通常用作载体的任意载体。但是,优选使用来自载体的氧的移动速度快、且可使微粒有效地燃烧的载体,作为这样的载体,可举出例如:CeO2-ZrO2系或ZrO2系,优选使用CeO2-ZrO2系。
本发明的微粒燃烧催化剂中,使用CeO2-ZrO2系载体时,该复合氧化物中的CeO2的量优选为5~50质量%。CeO2的量超过50质量%时,则在高温时、例如在700℃以上的温度下,载体的比表面积会降低,有时最终引起催化剂的热劣化。而CeO2的量小于5质量%时,有时也最终导致催化剂的热劣化。
本发明的微粒燃烧催化剂中,载体优选由含有选自Nd、La、Fe、Y、Pr、Ba、Ca、Mg、Sn和Sr中的至少一种金属的氧化物的CeO2-ZrO2系复合氧化物构成。通过含有上述金属的氧化物,由CeO2-ZrO2系复合氧化物构成的载体的热稳定性的提高得以实现,低温下的氧化特性的提高得以实现。为了实现上述效果,需要Nd、La、Fe、Y、Pr、Ba、Ca、Mg、Sn和Sr中的至少一种金属的氧化物的量为1质量%以上。但是,上述金属氧化物的量超过35质量%时,则与之相应地CeO2和ZrO2的相对量降低,由CeO2-ZrO2系复合氧化物构成的载体的特性有降低的倾向。因此,优选使用由Nd、La、Fe、Y、Pr、Ba、Ca、Mg、Sn和Sr中的至少一种金属的氧化物的量(使用二种以上金属的氧化物时则为其合计量)为1~35质量%,CeO2的量为5~50质量%的CeO2-ZrO2系复合氧化物构成的载体。
本发明的微粒燃烧催化剂的制造方法中:将含有Ag离子的水溶液例如硝酸银水溶液,与含有选自Pd、Pt和Au中的至少1种贵金属的离子的水溶液例如硝酸钯水溶液、二硝基二胺Pt硝酸溶液或氯化金水溶液,以相对于Ag 85~20at%而使选自Pd、Pt和Au中的至少1种贵金属为15~80at%的量的比例进行混合,在该混合水溶液中,以相对于载体100质量份而使催化剂成分的金属的合计量为0.5~30质量份的量的比例加入如上所述载体的粉末并进行搅拌,将所得浆料蒸发至干,在例如120℃下进行干燥处理,然后在空气中700~1000℃、优选800~950℃下,烧成〔50-0.047×温度(℃)〕小时以上,由此可以确实地进行Ag与选自Pd、Pt和Au中的至少1种贵金属的合金化。应予说明,对于烧成时间,在满足为〔50-0.047×温度(℃)〕小时以上的条件的基础上,优选为10~30小时、进一步优选为15~25小时。本发明中将烧成时间规定在“〔50-0.047×温度(℃)〕小时以上”的理由是基于多次实验。
使用上述合金作为催化剂成分的本发明的微粒燃烧催化剂中,其XRD的峰位置与仅使用Ag作为催化剂成分的微粒燃烧催化剂的XRD的峰位置相比,优选漂移0.45度以上。该微粒燃烧催化剂的XRD的峰漂移〔Ag(111)峰位置的漂移〕量与合金的固溶化度、合金化度相对应,如后述说明可知,取决于合金组成和热处理温度(烧成温度)而变化。
考虑到使本发明的微粒燃烧催化剂保持于基材上来制造本发明的微粒过滤器时,则优选在载体表面赋予SiO2 、TiO2 、ZrO2 或Al2O3 等来作为粘合剂成分。通过在载体表面赋予粘合剂成分,基材与载体的密合性提高而使催化剂的耐久性提高、耐热性提高。
本发明的微粒过滤器可以是作为微粒过滤器所公知的任意形状,优选具有三维立体结构。作为具有三维立体结构的过滤器的具体例,可举出:通壁(wall-through)型、流通蜂窝(flow-through honeycomb)型、金属丝网型、陶瓷纤维型、金属多孔体型、粒子充填型、泡沫型等。另外,作为基材的材质,可举出:堇青石、SiC等陶瓷,或Fe-Cr-Al合金,不锈钢合金等。
本发明的排气净化装置中包含上述本发明的微粒过滤器,对于其结构,本领域技术人员可容易地理解。
接着,对本发明的微粒过滤器的制造方法进行说明。
将作为载体的铈-锆复合氧化物与SiO2 、氧化铝溶胶(alumina sol)等粘合剂成分和水一起混合后,用球磨机等粉碎装置微细粉碎。将这样得到的浆料涂覆于金属丝网过滤器等基材过滤器。通常,将其在500℃至700℃左右的温度下烧成。使作为催化剂成分的例如硝酸银水溶液与硝酸钯水溶液的混合水溶液浸渗于所形成的洗涂层,然后进行干燥和烧成。烧成的条件与上述微粒燃烧催化剂的制造方法中记载的条件相同。作为催化剂的涂覆总量,在壁流通型(wall-flow type)DPF的情形中为10~100g/L左右、在金属丝网的情形中为50~150g/L左右。催化剂的涂覆总量过少则得不到充分的性能。而过多则相对于排气的背压会变高。
实施例
以下,基于实施例和比较例具体地说明本发明。应予说明,各实施例和比较例中,构成作为载体的复合氧化物的各氧化物之后的括号内的数值表示相对于复合氧化物整体的各氧化物的质量%。
实施例1~5、比较例1~4
在相对于载体的质量以金属元素换算计为5质量%的、硝酸银水溶液(比较例1)、硝酸银水溶液与硝酸钯水溶液的Ag原子∶Pd原子=95∶5的混合溶液(比较例2)、硝酸银水溶液与硝酸钯水溶液的Ag原子∶Pd原子=90∶10的混合溶液(比较例3)、硝酸银水溶液与硝酸钯水溶液的Ag原子∶Pd原子=80∶20的混合溶液(实施例1)、硝酸银水溶液与硝酸钯水溶液的Ag原子∶Pd原子=70∶30的混合溶液(实施例2)、硝酸银水溶液与硝酸钯水溶液的Ag原子∶Pd原子=50∶50的混合溶液(实施例3)、硝酸银水溶液与硝酸钯水溶液的Ag原子∶Pd原子=30∶70的混合溶液(实施例4)、硝酸钯水溶液(比较例4)、或硝酸银水溶液与二硝基二胺Pt硝酸溶液的Ag原子∶Pt原子=80∶20的混合溶液(实施例5)中分别加入水30g,进行搅拌制为水溶液。向所得各水溶液中加入由CeO2(21)+ZrO2(72)+La2O3(2)+Nd2O3(5)构成的复合氧化物的粉末5.0g,搅拌30分钟。将所得各浆料蒸发至干后,在120℃下干燥3小时。然后,在空气中800℃下烧成20小时。所得各微粒燃烧催化剂的催化剂金属担载量以载体的质量基准计为5质量%。
<Pd含量发生了变化的微粒燃烧催化剂的燃烧起始温度的评价>
对于实施例1~4和比较例1~4中得到的各微粒燃烧催化剂粉末,通过下述方法来测定燃烧起始温度(Tig)。
将实施例1~4和比较例1~4中得到的各微粒燃烧催化剂粉末的任1种20mg与碳2mg(Degussa公司制造、Printex-V、墨粉碳)用玛瑙研钵混合15秒钟,并使用石英棉将该混合物固定于石英反应管的中央部。一边以下述流量通入下述组成的流通气体,一边通过电炉使该石英反应管的温度以下述升温速度升温,并用红外线型分析仪测定出口侧的CO和CO2 的浓度。将该CO2与CO的合计浓度达到30ppm时的催化剂入口侧的温度(电炉控制温度)作为燃烧起始温度。对各微粒燃烧催化剂粉末进行测定得到的燃烧起始温度如图1所示。
气体组成:O2:10%、N2:剩余量
流量:400cc/min
升温速度:10℃/min
如基于图1所示图表可知,作为催化剂成分,优选使用Ag 85~20at%与选自Pd、Pt和Au中的至少1种贵金属15~80at%的合金,更优选使用Ag 80~30at%与选自Pd、Pt和Au中的至少1种贵金属20~70at%的合金。
<热处理温度发生了变化的微粒燃烧催化剂的燃烧起始温度的评价>
除了使烧成温度为800℃、900℃或1000℃以外,与实施例1、比较例1和实施例5相同地操作,对所得的各微粒燃烧催化剂粉末,以上述方法测定燃烧起始温度(Tig)。对各微粒燃烧催化剂粉末进行测定得到的燃烧起始温度如第1表所示。
[表1]
如基于第1表中所示的数据可知,与单独使用Ag相比,通过使用Ag 80at%与Pd 20at%的合金、Ag 80at%与Pt20at%的合金来作为催化剂成分,耐热性得到改善的现象更加明显。
<Pd含量、热处理温度发生了变化的微粒燃烧催化剂的XRD的峰漂移量的测定>
对于Pd含量为5at%、10at%或20at%且热处理温度为800℃时的微粒燃烧催化剂、Pd含量为20at%且热处理温度为900℃时的微粒燃烧催化剂、以及Pd含量为20at%且热处理温度为1000℃时的微粒燃烧催化剂,求出XRD的峰漂移〔Ag(111)峰位置的漂移〕量(固溶化度、合金化度)的变化。对各微粒燃烧催化剂粉末进行测定得到的峰位置的漂移量如图2所示。应予说明,峰位置的变化(漂移量)的状态如图3所示。应予说明,优选进行合金化以致使用上述合金作为催化剂成分时的XRD的峰位置较仅使用Ag作为催化剂成分时的XRD的峰位置漂移约0.45度以上。
如基于图2所示的图表可知,随着Pd含量的增加,峰位置的漂移量变大,另外,热处理温度上升也使得峰位置的漂移量变大,表明固溶化、合金化得到促进。
Claims (10)
1.微粒燃烧催化剂,其特征在于,担载于CeO2-ZrO2系载体的催化剂成分由Ag 80~30at%与选自Pd、Pt和Au中的至少1种贵金属20~70at%的合金构成,
其通过下述方法得到:
将含有Ag离子的水溶液、与含有选自Pd、Pt和Au中的至少1种贵金属的离子的水溶液混合,向该混合水溶液中加入作为催化剂载体的CeO2-ZrO2系载体的粉末并进行搅拌,并将所得浆料蒸发至干,进行干燥处理后,在空气中烧成。
2.权利要求1所述的微粒燃烧催化剂,其中,所述在空气中的烧成是在空气中850~950℃下,烧成〔50-0.047×温度(℃)〕小时以上。
3.权利要求1所述的微粒燃烧催化剂,其中,所述CeO2-ZrO2系载体含有Nd、La、Fe、Y、Pr、Ba、Ca、Mg、Sn和Sr中的至少一种金属的氧化物1~35质量%。
4.权利要求1~3中任一项所述的微粒燃烧催化剂,其中,使用上述合金作为催化剂成分的微粒燃烧催化剂的XRD的峰位置与仅使用Ag作为催化剂成分的微粒燃烧催化剂的XRD的峰位置相比,漂移0.45度以上。
5.微粒过滤器,其特征在于,涂覆有权利要求1~4中任一项所述的微粒燃烧催化剂。
6.微粒燃烧催化剂的制造方法,其特征在于,将含有Ag离子的水溶液、与含有选自Pd、Pt和Au中的至少1种贵金属的离子的水溶液混合,向该混合水溶液中加入作为催化剂载体的CeO2-ZrO2系载体的粉末并进行搅拌,并将所得浆料蒸发至干,进行干燥处理后,在空气中烧成,由此得到下述微粒燃烧催化剂,其担载于CeO2-ZrO2系载体的催化剂成分由Ag 80~30at%与选自Pd、Pt和Au中的至少1种贵金属20~70at%的合金构成。
7.权利要求6所述的微粒燃烧催化剂的制造方法,其中,所述在空气中的烧成是在空气中850~950℃下,烧成〔50-0.047×温度(℃)〕小时以上。
8.权利要求6或7所述的微粒燃烧催化剂的制造方法,其中,所述CeO2-ZrO2系载体含有Nd、La、Fe、Y、Pr、Ba、Ca、Mg、Sn和Sr中的至少一种金属的氧化物1~35质量%。
9.微粒燃烧催化剂,其特征在于,担载于CeO2-ZrO2系载体的催化剂成分由Ag 80~30at%与选自Pd、Pt和Au中的至少1种贵金属20~70at%的合金构成,
CeO2-ZrO2系载体含有Nd、La、Fe、Y、Pr、Ba、Ca、Mg、Sn和Sr中的至少一种金属的氧化物1~35质量%。
10.权利要求9所述的微粒燃烧催化剂,其中,使用上述合金作为催化剂成分的微粒燃烧催化剂的XRD的峰位置与仅使用Ag作为催化剂成分的微粒燃烧催化剂的XRD的峰位置相比,漂移0.45度以上。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009160197A JP5468321B2 (ja) | 2009-07-06 | 2009-07-06 | パティキュレート燃焼触媒 |
JP2009-160197 | 2009-07-06 | ||
CN2010800300824A CN102470350A (zh) | 2009-07-06 | 2010-06-18 | 微粒燃烧催化剂 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010800300824A Division CN102470350A (zh) | 2009-07-06 | 2010-06-18 | 微粒燃烧催化剂 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107008257A true CN107008257A (zh) | 2017-08-04 |
Family
ID=43429113
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010800300824A Pending CN102470350A (zh) | 2009-07-06 | 2010-06-18 | 微粒燃烧催化剂 |
CN201611016049.1A Pending CN107008257A (zh) | 2009-07-06 | 2010-06-18 | 微粒燃烧催化剂 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010800300824A Pending CN102470350A (zh) | 2009-07-06 | 2010-06-18 | 微粒燃烧催化剂 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2452746B1 (zh) |
JP (1) | JP5468321B2 (zh) |
CN (2) | CN102470350A (zh) |
WO (1) | WO2011004689A1 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6016916B2 (ja) * | 2012-06-28 | 2016-10-26 | 三井金属鉱業株式会社 | ディーゼルパティキュレートフィルタ及び排気ガス浄化装置 |
CN103031133B (zh) * | 2012-12-27 | 2014-12-03 | 余俊杰 | 一种耐燃烧的无机组合物 |
JP5993009B2 (ja) * | 2013-05-22 | 2016-09-14 | 三井金属鉱業株式会社 | ディーゼルパティキュレートフィルタ及び排気ガス浄化装置 |
WO2015159403A1 (ja) * | 2014-04-17 | 2015-10-22 | 三井金属鉱業株式会社 | 排気ガス浄化用触媒組成物及び排気ガス浄化触媒 |
KR101716174B1 (ko) * | 2015-12-03 | 2017-03-14 | 희성촉매 주식회사 | 디젤엔진 백연 방출 억제를 위한 촉매조성물 |
DE102016203017B3 (de) * | 2016-02-25 | 2017-08-10 | Continental Automotive Gmbh | Verfahren zur Herstellung eines Katalysators |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1473651A (zh) * | 2002-08-07 | 2004-02-11 | 昆明贵研催化剂有限责任公司 | 贵金属-稀土废气净化催化剂及其制备 |
CN1238630C (zh) * | 2003-07-08 | 2006-01-25 | 北京交通大学 | 基于排气流速的柴油机微粒捕捉器电加热再生的控制方法 |
CN1308574C (zh) * | 2003-01-10 | 2007-04-04 | 日产自动车株式会社 | 用于发动机废气净化装置的微粒过滤器的再生设备和方法 |
WO2009025173A1 (ja) * | 2007-08-22 | 2009-02-26 | Honda Motor Co., Ltd. | 排ガス浄化触媒及びこれを用いた排ガス浄化装置 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58500180A (ja) | 1981-02-19 | 1983-02-03 | ロ−ベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 内燃機関における燃焼過程の不安定性の検出方法及びこの方法を実施する装置 |
JPH04144898A (ja) | 1990-10-05 | 1992-05-19 | Toshiba Corp | エスカレータの制御装置 |
JPH1047035A (ja) | 1996-08-08 | 1998-02-17 | Sumitomo Electric Ind Ltd | ディーゼルエンジン用パティキュレートトラップ |
JP4631230B2 (ja) * | 2001-08-03 | 2011-02-16 | マツダ株式会社 | 排気ガス浄化用触媒 |
JP3528839B2 (ja) | 2002-05-15 | 2004-05-24 | トヨタ自動車株式会社 | パティキュレート酸化材及び酸化触媒 |
JP2004058013A (ja) | 2002-07-31 | 2004-02-26 | Nissan Motor Co Ltd | 排ガス浄化触媒 |
JP2005007360A (ja) * | 2003-06-20 | 2005-01-13 | Tokyo Yogyo Co Ltd | 排ガス浄化用フィルタ |
JP4144898B2 (ja) * | 2005-10-06 | 2008-09-03 | 三井金属鉱業株式会社 | パティキュレート燃焼触媒、パティキュレートフィルター及び排ガス浄化装置 |
JP4911593B2 (ja) * | 2006-11-06 | 2012-04-04 | 独立行政法人産業技術総合研究所 | 球状多孔質合金、球状多孔質合金複合体の製造方法 |
-
2009
- 2009-07-06 JP JP2009160197A patent/JP5468321B2/ja active Active
-
2010
- 2010-06-18 WO PCT/JP2010/060358 patent/WO2011004689A1/ja active Application Filing
- 2010-06-18 CN CN2010800300824A patent/CN102470350A/zh active Pending
- 2010-06-18 CN CN201611016049.1A patent/CN107008257A/zh active Pending
- 2010-06-18 EP EP10797000.6A patent/EP2452746B1/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1473651A (zh) * | 2002-08-07 | 2004-02-11 | 昆明贵研催化剂有限责任公司 | 贵金属-稀土废气净化催化剂及其制备 |
CN1308574C (zh) * | 2003-01-10 | 2007-04-04 | 日产自动车株式会社 | 用于发动机废气净化装置的微粒过滤器的再生设备和方法 |
CN1238630C (zh) * | 2003-07-08 | 2006-01-25 | 北京交通大学 | 基于排气流速的柴油机微粒捕捉器电加热再生的控制方法 |
WO2009025173A1 (ja) * | 2007-08-22 | 2009-02-26 | Honda Motor Co., Ltd. | 排ガス浄化触媒及びこれを用いた排ガス浄化装置 |
Non-Patent Citations (2)
Title |
---|
JUN FAN ET AL.: "Modification of CeO2–ZrO2 mixed oxides by coprecipitated/impregnated Sr: Effect on the microstructure and oxygen storage capacity", 《JOURNAL OF CATALYSIS》 * |
毛小波等: "高性能Ce0.35Zr0.55Y0.1O1.95 稀土储氧材料的研究", 《无机化学学报》 * |
Also Published As
Publication number | Publication date |
---|---|
EP2452746B1 (en) | 2017-10-25 |
EP2452746A4 (en) | 2013-01-30 |
EP2452746A1 (en) | 2012-05-16 |
WO2011004689A1 (ja) | 2011-01-13 |
CN102470350A (zh) | 2012-05-23 |
JP2011011195A (ja) | 2011-01-20 |
JP5468321B2 (ja) | 2014-04-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4144898B2 (ja) | パティキュレート燃焼触媒、パティキュレートフィルター及び排ガス浄化装置 | |
JP4826944B2 (ja) | ディーゼル排ガス浄化用構造体及びそれを用いた排ガス浄化方法 | |
EP2275203B1 (en) | Particulate combustion catalyst, particulate filter and exhaust gas purifying apparatus | |
JP5428773B2 (ja) | 排気ガス浄化用触媒 | |
CN108404975A (zh) | 一种具有良好低温起燃性能的氧化型催化系统及其制备工艺 | |
EP2106291A1 (en) | Engine exhaust catalysts containing palladium-gold | |
CN107008257A (zh) | 微粒燃烧催化剂 | |
JP4210552B2 (ja) | ディーゼルエンジン排ガス浄化用触媒およびその製造方法 | |
JP2019521835A (ja) | 3区画(theree−zone)ディーゼル酸化触媒 | |
JP6865664B2 (ja) | 排ガス浄化用酸化触媒装置 | |
KR101855537B1 (ko) | Rh 로딩량이 감소된 NOx 저장 촉매 | |
US9393522B2 (en) | Method for combusting diesel exhaust gas | |
JP5524820B2 (ja) | パティキュレート燃焼触媒、その製造方法、パティキュレートフィルター及びその製造方法 | |
JP5348930B2 (ja) | パティキュレート燃焼触媒、パティキュレートフィルター及び排ガス浄化装置 | |
CN105473222B (zh) | 尾气净化用催化剂及其制备方法 | |
JPH0966223A (ja) | 排気ガス浄化用触媒システム及び排気ガスの浄化方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170804 |