CN113164853A - 蜂窝结构体及废气净化装置 - Google Patents
蜂窝结构体及废气净化装置 Download PDFInfo
- Publication number
- CN113164853A CN113164853A CN201980067482.3A CN201980067482A CN113164853A CN 113164853 A CN113164853 A CN 113164853A CN 201980067482 A CN201980067482 A CN 201980067482A CN 113164853 A CN113164853 A CN 113164853A
- Authority
- CN
- China
- Prior art keywords
- honeycomb structure
- cells
- fluid
- structure according
- end surface
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 67
- 230000002093 peripheral effect Effects 0.000 claims abstract description 49
- 238000005192 partition Methods 0.000 claims abstract description 43
- 230000005291 magnetic effect Effects 0.000 claims abstract description 41
- 239000000126 substance Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims description 56
- 239000002344 surface layer Substances 0.000 claims description 41
- 239000003054 catalyst Substances 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 24
- 239000011148 porous material Substances 0.000 claims description 18
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 18
- 229910052878 cordierite Inorganic materials 0.000 claims description 17
- 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 claims description 16
- 230000035699 permeability Effects 0.000 claims description 14
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 14
- 239000000696 magnetic material Substances 0.000 claims description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 7
- 230000007423 decrease Effects 0.000 claims description 5
- 229910000505 Al2TiO5 Inorganic materials 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 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 claims description 4
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 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 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 26
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 12
- 229910052799 carbon Inorganic materials 0.000 abstract description 10
- 238000005485 electric heating Methods 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 119
- 239000007789 gas Substances 0.000 description 47
- 239000011248 coating agent Substances 0.000 description 26
- 238000000576 coating method Methods 0.000 description 26
- 238000000034 method Methods 0.000 description 25
- 239000011247 coating layer Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 14
- 239000011230 binding agent Substances 0.000 description 12
- 238000001035 drying Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 11
- 229910052753 mercury Inorganic materials 0.000 description 11
- 239000013618 particulate matter Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 8
- 239000000919 ceramic Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 230000006698 induction Effects 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 5
- 238000010304 firing Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 5
- SBEQWOXEGHQIMW-UHFFFAOYSA-N silicon Chemical compound [Si].[Si] SBEQWOXEGHQIMW-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 239000006249 magnetic particle Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000454 talc Substances 0.000 description 4
- 229910052623 talc Inorganic materials 0.000 description 4
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000002276 dielectric drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000007602 hot air drying Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical group OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- ODUCDPQEXGNKDN-UHFFFAOYSA-N Nitrogen oxide(NO) Natural products O=N ODUCDPQEXGNKDN-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910009372 YVO4 Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010962 carbon steel Substances 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
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 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
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 1
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 229910001753 sapphirine Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000009777 vacuum freeze-drying Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 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
- 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
-
- 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
- B01D39/2072—Other inorganic materials, e.g. ceramics the material being particulate or granular
- B01D39/2075—Other inorganic materials, e.g. ceramics the material being particulate or granular sintered or bonded by inorganic agents
-
- 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
- B01D46/2425—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material
- B01D46/244—Honeycomb filters characterized by parameters related to the physical properties of the honeycomb structure material of the plugs
-
- 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
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2459—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the plugs
-
- 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
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/247—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the cells
-
- 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
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2474—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the walls along the length of the honeycomb
-
- 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
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2482—Thickness, height, width, length or diameter
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/80—Chemical processes for the removal of the retained particles, e.g. by burning
- B01D46/84—Chemical processes for the removal of the retained particles, e.g. by burning by heating only
-
- 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
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- 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
- B01J35/33—Electric or magnetic properties
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
- C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0006—Honeycomb structures
- C04B38/0016—Honeycomb structures assembled from subunits
- C04B38/0019—Honeycomb structures assembled from subunits characterised by the material used for joining separate subunits
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
- C04B41/87—Ceramics
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/16—Selection of particular materials
-
- 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
- F01N3/101—Three-way 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
- 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
-
- 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
- F01N3/2825—Ceramics
-
- 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
- B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
-
- 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
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0668—The layers being joined by heat or melt-bonding
-
- 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
- B01D2239/08—Special characteristics of binders
- B01D2239/083—Binders between layers of the filter
-
- 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
- B01D2239/10—Filtering material manufacturing
-
- 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
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1208—Porosity
-
- 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
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1216—Pore size
-
- 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
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1241—Particle diameter
-
- 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
- B01D2239/12—Special parameters characterising the filtering material
- B01D2239/1258—Permeability
-
- 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
- B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
- B01D2279/30—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for treatment of exhaust gases from IC Engines
-
- 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
- B01D46/2451—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure
- B01D46/2486—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure characterised by the shapes or configurations
- B01D46/249—Quadrangular e.g. square or diamond
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00793—Uses not provided for elsewhere in C04B2111/00 as filters or diaphragms
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0081—Uses not provided for elsewhere in C04B2111/00 as catalysts or catalyst carriers
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3218—Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
-
- 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
- F01N2330/06—Ceramic, e.g. monoliths
-
- 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)
- Ceramic Engineering (AREA)
- Geometry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Geology (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Filtering Materials (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
本发明提供蜂窝结构体及废气净化装置,该蜂窝结构体能够利用电加热将碳微粒等燃烧除去,并且,抑制了压力损失增加。一种蜂窝结构体,其是柱状的蜂窝结构体,该柱状的蜂窝结构体具有:多孔质的隔壁及位于最外周的外周壁,该隔壁区划形成从流体的流入侧的端面即流入端面延伸至流体的流出侧的端面即流出端面的多个隔室,该隔室形成流体的流路,其中,隔室包括:流体的流入侧呈开口而在流体的流出侧的端面具有封孔部的多个隔室A、以及与隔室A分别交替地配置的且流体的流出侧呈开口而在流体的流入侧的端面具有封孔部的多个隔室B,隔室A的封孔部及隔室B的封孔部中的一者或两者包含磁性体。
Description
技术领域
本发明涉及蜂窝结构体及废气净化装置。特别涉及能够利用电加热将碳微粒等燃烧除去、且抑制了压力损失增加的蜂窝结构体及废气净化装置。
背景技术
通常,作为不完全燃烧的结果,在汽车的废气中包含碳等微粒。从降低对人体健康的危害的观点出发,要求提高降低汽车废气中的微粒。目前,对从作为汽车动力源主流的汽油发动机排出的微粒也要求降低至无限接近于0的排出。另外,对柴油发动机的废气微粒也有同样的需求。
作为对策,专利文献1中提出了如下蜂窝结构体,该蜂窝结构体具备:蜂窝结构部,其具有区划形成多个隔室的多孔质的隔壁和位于最外周的外周壁,多个隔室形成流体的流路;以及封孔部,其配设于所述蜂窝结构部的、流体的入口侧的端面处的规定的所述隔室的开口部以及流体的出口侧的端面处的剩余所述隔室的开口部。
并且,在将上述的过滤器搭载于车辆时,从确保搭载空间的观点出发,同时从确保排气系统构成上的设计自由度的观点出发,优选搭载于空间比较有余裕的地板下位置。然而,如果将上述的过滤器配置于地板下,则存在如下问题,即,发动机废气温度降低,过滤器中积存的微粒(碳微粒)不进行燃烧,碳微粒蓄积而引起压力损失过度上升,导致发动机的输出降低。为了避免该问题,像专利文献2公开那样提出如下方法,即,使电流流通于导电性的蜂窝结构体本身,利用其焦耳热,对蜂窝结构体本身进行加热。然而,专利文献2所公开的技术中,存在如下问题,即,如果废气在排气管内生成冷凝水,则会发生电气短路。
针对此,作为即便在产生冷凝水的环境中也能够使用且即便在碳微粒堆积的条件下也能够使用的加热技术,专利文献3中公开了如下方法,即,向非导电性蜂窝隔室内插入金属丝,利用构成为围绕蜂窝结构体的外周面的线圈,进行感应加热,而无需使电流流通于蜂窝结构体自身。
现有技术文献
专利文献
专利文献1:日本特许第4920752号公报
专利文献2:日本特许第5261256号公报
专利文献3:美国专利申请公开第2017/0022868号说明书
发明内容
然而,本发明的发明人进行了研究,结果得知:如果将专利文献3所公开的技术应用于蜂窝结构过滤器,则一部分的隔室无法作为气体流路使用,因为过滤器过滤面积减少,由此引起压力损失大幅增加。
本发明的课题在于,提供能够利用电加热将碳微粒等燃烧除去、且抑制了压力损失增加的蜂窝结构体及废气净化装置。
本发明的发明人进行了潜心研究,结果发现,将成为蜂窝结构体的流体流路的隔室构成为包括流体的流入侧呈开口而在流体的流出侧的端面具有封孔部的多个隔室A、以及与隔室A分别交替地配置的且流体的流出侧呈开口而在流体的流入侧的端面具有封孔部的多个隔室B,此外,构成为隔室A的封孔部及隔室B的封孔部中的一者或两者包含磁性体,由此能够解决上述课题。即,本发明如下确定。
(1)一种蜂窝结构体,其是柱状的蜂窝结构体,
该柱状的蜂窝结构体具有:多孔质的隔壁及位于最外周的外周壁,该隔壁区划形成从流体的流入侧的端面即流入端面延伸至流体的流出侧的端面即流出端面的多个隔室,该隔室形成流体的流路,
所述蜂窝结构体的特征在于,
所述隔室包括:所述流体的流入侧呈开口而在所述流体的流出侧的端面具有封孔部的多个隔室A、以及与所述隔室A分别交替地配置的且所述流体的流出侧呈开口而在所述流体的流入侧的端面具有封孔部的多个隔室B,
所述隔室A的封孔部及所述隔室B的封孔部中的一者或两者包含磁性体。
(2)一种废气净化装置,其特征在于,具有:
(1)的蜂窝结构体、以及
线圈配线,该线圈配线呈螺旋状地环绕所述蜂窝结构体的外周。
发明效果
根据本发明,可以提供能够利用电加热将碳微粒等燃烧除去、且抑制了压力损失增加的蜂窝结构体及废气净化装置。
附图说明
图1是示意性地示出本发明的一个实施方式的蜂窝结构体的立体图。
图2是示意性地示出图1的蜂窝结构体的具有封孔部的隔室及隔壁处的、与隔室延伸的方向(气体流动的方向)平行的截面的截面图。
图3是示意性地示出本发明的一个实施方式的蜂窝结构体的具有封孔部的隔室及隔壁处的、与隔室延伸的方向(气体流动的方向)平行的截面的截面图。
图4是示意性地示出本发明的一个实施方式的蜂窝结构体的具有封孔部的隔室及隔壁处的、与隔室延伸的方向(气体流动的方向)平行的截面的截面图。
图5是组装有本发明的一个实施方式所涉及的蜂窝结构体的废气净化装置的废气流路的概要图。
图6是将组装有本发明的一个实施方式所涉及的蜂窝结构体的废气净化装置的废气流路放大显示的概要图。
具体实施方式
以下,参照附图,对本发明的蜂窝结构体的实施方式进行说明,不过,本发明并不限定于此的说明解释,只要不脱离本发明的范围,就可以基于本领域技术人员的知识进行各种变更、修正、改良。
(1.蜂窝结构体)
图1中记载有示意性地示出本发明的一个实施方式的蜂窝结构体1的立体图。图2中记载有:示意性地示出图1的蜂窝结构体1的具有封孔部18、19的隔室15及隔壁12处的、与隔室延伸的方向(气体流动的方向)平行的截面的截面图。图示的蜂窝结构体1具备:多孔质的隔壁12、以及位于最外周的外周壁11,该隔壁12区划形成从流体的流入侧的端面即流入端面13延伸至流体的流出侧的端面即流出端面14的多个隔室15,该多个隔室15形成流体的流路。图示的蜂窝结构体1中,隔室15包括:流体的流入侧呈开口而在流体的流出侧的端面具有封孔部18的多个隔室A、以及与隔室A分别交替配置的且流体的流出侧呈开口而在流体的流入侧的端面具有封孔部19的多个隔室B。隔室A及隔室B夹着隔壁12而交替地相邻配置,两个端面形成棋盘格状。隔室A及隔室B的数量、配置、形状等以及隔壁12的厚度等没有限制,可以根据需要进行适当设计。像这样的蜂窝结构体1可以用作对废气进行净化的过滤器(蜂窝过滤器)。
图示的蜂窝结构体1中,流体的流入侧呈开口而在流体的流出侧的端面具有封孔部18的隔室A的该封孔部18可以采用与以往作为公知的蜂窝结构体的封孔部而使用的封孔部同样地构成的封孔部。另一方面,流体的流出侧呈开口而在流体的流入侧的端面具有封孔部19的隔室B的该封孔部19包含磁性体。隔室B的封孔部19可以将以往作为公知的蜂窝结构体的封孔部使用的材料作为母料,该母料包含磁性体,也可以仅由磁性体构成。图示的蜂窝结构体1中,仅在隔室B的封孔部19中包含磁性体,但不限定于此,隔室A的封孔部18及隔室B的封孔部19中的一者或两者包含磁性体即可。另外,隔室A的封孔部18及隔室B的封孔部19可以包含玻璃。应予说明,可以在形成外周涂层之后配设隔室A及隔室B的封孔部18、19,也可以在形成外周涂层之前的状态、即制作蜂窝结构体1的阶段配设隔室A及隔室B的封孔部18、19。
通过构成为隔室A的封孔部18及隔室B的封孔部19中的一者或两者包含磁性体,使得将蜂窝结构体1用作蜂窝过滤器时的封孔部直接包含磁性体,不需要为了填充包含磁性体的材料而使用蜂窝结构体1的隔室15,结果,能够抑制压力损失增加。另外,图示的蜂窝结构体1中,隔室B在流体的流入侧的端面具有包含磁性体的封孔部19。因此,在采用了蜂窝结构体1的废气净化装置中,使呈螺旋状环绕蜂窝结构体1的外周的线圈配线位于与隔室B的封孔部19相对应的位置。即,只要在蜂窝结构体1的流体的流入侧的端面附近以呈螺旋状地环绕外周的方式配置线圈配线来进行感应加热,则来自在流入侧被加热的端面的热与流体移动一起在隔壁12及隔室15内传播,加热至流出侧。因此,不需要在蜂窝结构体1的整个长度方向上将整体加热,能量效率良好。另外,由于可以仅为局部加热,无需在蜂窝结构体1的整个长度方向上将整体加热,所以能够降低PM(粒子状物质)的燃烧所需要的投入电力。另外,将容易偏在于隔室15内的端面附近的PM(粒子状物质)迅速地燃烧除去而使蜂窝结构过滤器再生变得容易。图示的蜂窝结构体1中,将如上所述呈螺旋状地环绕蜂窝结构体1的外周的线圈配线配置于与隔室B的封孔部19相对应的位置,但不限于此,可以将线圈配线配置于与隔室A的封孔部18及隔室B的封孔部19中的一者或两者相对应的位置。此时,在蜂窝结构体的轴向上,在线圈配线所对应的位置配置的封孔部包含磁性体。
另外,图示的蜂窝结构体1中,包含磁性体的隔室B的封孔部19的隔室延伸的方向上的深度随着从蜂窝结构体1的中心趋向最外周而逐渐减小。根据像这样的构成,在与隔室B的封孔部19相对应的位置配置线圈配线、即在蜂窝结构体1的流体的流入侧的端面附近以呈螺旋状地环绕外周的方式配置线圈配线进行感应加热时,蜂窝结构体1的外周侧的封孔部19的深度最短,随着趋向中心,封孔部19逐渐变深,因此,由感应加热带来的热在外侧的封孔部19不易被屏蔽,良好地加热至蜂窝结构体1的中心。作为随着从蜂窝结构体1的中心趋向最外周而逐渐减小的方案,没有特别限定,可以适当设计,例如优选随着从蜂窝结构体1的中心趋向最外周以均等的比例减小。图示的蜂窝结构体1中,如上所述,包含磁性体的隔室B的封孔部19的隔室延伸的方向上的深度随着从蜂窝结构体1的中心趋向最外周而逐渐减小,但不限于此,可以为,包含磁性体的隔室A的封孔部18及隔室B的封孔部19中的一者或两者的隔室延伸的方向上的深度随着从蜂窝结构体1的中心趋向最外周而逐渐减小。另外,可以将包含磁性体的隔室A的封孔部18及隔室B的封孔部19中的一者或两者的隔室延伸的方向上的深度适当根据所期望的目的而形成为:随着从蜂窝结构体1的中心趋向最外周而发生变化。
磁性体的居里点没有特别限定,优选为700℃以上。另外,磁性体的居里点可以为800℃以上。如果磁性体的居里点为700℃以上,当然也能够达到:为使催化温度上升到催化活性温度以上而所需足够的蜂窝温度,不仅如此,将隔室15内所捕集到的PM(粒子状物质)燃烧除去而使蜂窝结构过滤器再生变得容易。作为具有700℃以上的居里点的磁性体,以Fe或Co为主成分的合金较为合适,作为具体的组成,例如具有:余量Co-20质量%Fe、余量Co-25质量%Ni-4质量%Fe、余量Fe-15~35质量%Co、余量Fe-17质量%Co-2质量%Cr-1质量%Mo、余量Fe-49质量%Co-2质量%V、余量Fe-18质量%Co-10质量%Cr-2质量%Mo-1质量%Al、余量Fe-27质量%Co-1质量%Nb、余量Fe-20质量%Co-1质量%Cr-2质量%V、余量Fe-35质量%Co-1质量%Cr、纯钴、纯铁、电磁软铁、余量Fe-0.1~0.5质量%Mn等。此处,磁性体的居里点是指:失去强磁性的特性的温度。
蜂窝结构体1的隔壁12及外周壁11的材质没有特别限制,由于需要为具有大量细孔的多孔质体,所以,通常由陶瓷材料形成。例如可以举出:堇青石、碳化硅、钛酸铝、氮化硅、多铝红柱石、氧化铝、硅-碳化硅系复合材料、碳化硅-堇青石系复合材料、特别是以硅-碳化硅复合材料或碳化硅为主成分的烧结体。本说明书中“碳化硅系”是指:蜂窝结构体1含有蜂窝结构体1整体的50质量%以上的碳化硅。蜂窝结构体1以硅-碳化硅复合材料为主成分是指:蜂窝结构体1含有蜂窝结构体1整体的90质量%以上的硅-碳化硅复合材料(合计质量)。此处,硅-碳化硅复合材料含有:作为骨料的碳化硅粒子、以及作为使碳化硅粒子粘结的粘结材料的硅,优选多个碳化硅粒子通过硅以在碳化硅粒子间形成细孔的方式粘结。另外,蜂窝结构体1以碳化硅为主成分是指:蜂窝结构体1含有蜂窝结构体1整体的90质量%以上的碳化硅(合计质量)。
优选为,陶瓷材料为选自由堇青石、碳化硅、钛酸铝、氮化硅、多铝红柱石、氧化铝构成的组中的至少1个。
蜂窝结构体1的隔室形状没有特别限定,在与中心轴正交的截面中,优选为三角形、四边形、五边形、六边形、八边形等多边形、圆形、或椭圆形,此外,可以为不规则形状。
另外,作为蜂窝结构体1的外形,没有特别限定,可以设为端面为圆形的柱状(圆柱形状)、端面为椭圆形状的柱状、端面为多边形(四边形、五边形、六边形、七边形、八边形等)的柱状等形状。另外,蜂窝结构体1的大小没有特别限定,中心轴方向长度优选为40~500mm。另外,例如蜂窝结构体1的外形为圆筒状的情况下,其端面的半径优选为50~500mm。
蜂窝结构体1的隔壁12的厚度优选为0.20~0.50mm,就制造容易度这一点而言,更优选为0.25~0.45mm。例如,如果为0.20mm以上,则蜂窝结构体1的强度进一步提高,如果为0.50mm以下,则将蜂窝结构体1用作过滤器的情况下,能够使压力损失进一步减小。应予说明,该隔壁12的厚度是:利用对中心轴方向截面进行显微镜观察的方法所测定的平均值。
另外,构成蜂窝结构体1的隔壁12的气孔率优选为30~70%,就制造容易度这一点而言,进一步优选为40~65%。如果为30%以上,则压力损失容易减少,如果为70%以下,则能够维持蜂窝结构体1的强度。
另外,多孔质的隔壁12的平均细孔径优选为5~30μm,更优选为10~25μm。如果为5μm以上,则用作过滤器的情况下,能够使压力损失减小,如果为30μm以下,则能够维持蜂窝结构体1的强度。应予说明,本说明书中,在称为“平均细孔径”、“气孔率”时,是指利用压汞法测定的平均细孔径、气孔率。
蜂窝结构体1的隔室密度也没有特别限制,优选为5~63隔室/cm2的范围,更优选为31~54隔室/cm2的范围。
像这样的蜂窝结构体1如下制作,即,将含有陶瓷原料的坯料成型为具有隔壁12的蜂窝状,形成蜂窝成型体,将该蜂窝成型体干燥后进行烧成,由此蜂窝结构体1,其中,隔壁12区划形成从一个端面贯通至另一个端面且成为流体的流路的多个隔室15。然后,将像这样的蜂窝结构体用作本实施方式的蜂窝结构体1的情况下,可以将外周壁与蜂窝结构部一体地挤出,并直接用作外周壁,在成型或烧成后,对蜂窝成型体(蜂窝结构体)的外周进行磨削,制成规定形状,在该将外周磨削后的蜂窝结构体涂布涂层材料,形成外周涂层。应予说明,本实施方式的蜂窝结构体1中,例如可以不对蜂窝结构体的最外周进行磨削,采用具有外周的蜂窝结构体,在该具有外周的蜂窝结构体的外周面(即、蜂窝结构体的外周的更外侧)进一步涂布上述涂层材料,形成外周涂层。即,前者的情况下,在蜂窝结构体的外周面,仅有由涂层材料形成的外周涂层成为位于最外周的外周壁11。另一方面,后者的情况下,在蜂窝结构体的外周面形成有进一步层叠由涂层材料形成的外周涂层得到的且位于最外周的二层结构的外周壁11。还可以将外周壁与蜂窝结构部一体地挤出,并直接烧成,不进行外周的加工而用作外周壁。
涂层材料的组成没有特别限定,可以适当使用各种公知的涂层材料。涂层材料可以进一步含有胶体二氧化硅、有机粘合剂、粘土等。应予说明,有机粘合剂优选使用0.05~0.5质量%,更优选使用0.1~0.2质量%。另外,粘土优选使用0.2~2.0质量%,更优选使用0.4~0.8质量%。
应予说明,蜂窝结构体1不限定于一体地形成有隔壁12的一体型蜂窝结构体1,例如可以为具有如下结构的蜂窝结构体1(以下有时称为“接合型蜂窝结构体”),即,将多个具有多孔质的隔壁12且通过隔壁12而区划形成成为流体流路的多个隔室15的柱状蜂窝单元借助接合材料层进行组合的结构。
另外,本实施方式的蜂窝结构体1可以在形成多个隔室15的内壁的多孔质的隔壁12的表面和/或隔壁12的细孔内担载有催化剂。像这样,本实施方式的蜂窝结构体1可以构成为:担载有催化剂的催化剂载体、或者为了将废气中的粒状物质(碳微粒)净化而设置有封孔部18、19的过滤器(例如、柴油颗粒过滤器(以下也称为“DPF”))。
催化剂的种类没有特别限制,可以根据蜂窝结构体1的使用目的及用途而适当选择。例如,可以举出贵金属系催化剂或贵金属系催化剂以外的催化剂。作为贵金属系催化剂,可例示:将铂(Pt)、钯(Pd)、铑(Rh)这样的贵金属担载于氧化铝细孔表面且包含二氧化铈、氧化锆等助催化剂的三元催化剂、氧化催化剂、或包含碱土金属和铂来作为氮氧化物(NOx)的吸储成分的NOx吸储还原催化剂(LNT催化剂)。作为不采用贵金属的催化剂,可例示:包含铜置换沸石或铁置换沸石的NOx选择还原催化剂(SCR催化剂)等。另外,可以采用选自由这些催化剂构成的组中的2种以上的催化剂。应予说明,催化剂的担载方法也没有特别限制,可以按照以往将催化剂担载于蜂窝结构体的担载方法进行。
可以将烧成蜂窝结构体分别用作蜂窝单元,并将多个蜂窝单元的侧面彼此利用接合材料进行接合而使其一体化,制成蜂窝单元接合的状态的蜂窝结构体。蜂窝单元接合的状态的蜂窝结构体例如可以如下制造。在各蜂窝单元的两个底面粘贴有防止接合材料附着用掩膜的状态下,在接合面(侧面)涂布接合材料。
接下来,将这些蜂窝单元以蜂窝单元的侧面彼此对置的方式相邻地配置,并对相邻的蜂窝单元彼此进行压接,然后,进行加热干燥。像这样,制作出相邻的蜂窝单元的侧面彼此通过接合材料而接合的蜂窝结构体。针对蜂窝结构体,可以对外周部进行磨削加工而制成所期望的形状(例如圆柱状),在外周面涂布涂层材料后,使其加热干燥,形成外周壁11。
防止接合材料附着用掩膜的材料没有特别限制,例如可以优选使用聚丙烯(PP)、聚对苯二甲酸乙二醇酯(PET)、聚酰亚胺、或特氟龙(注册商标)等合成树脂。另外,掩膜优选具备粘着层,粘着层的材料优选为丙烯酸系树脂、橡胶系(例如、以天然橡胶或合成橡胶为主成分的橡胶)或硅系树脂。
作为防止接合材料附着用掩膜,例如可以优选使用厚度为20~50μm的粘着薄膜。
作为接合材料,例如可以使用通过将陶瓷粉末、分散介质(例如、水等)、以及根据需要所添加的粘合剂、胶溶剂、发泡树脂等添加剂混合而制备的接合材料。作为陶瓷,优选为含有选自由堇青石、多铝红柱石、锆石、钛酸铝、碳化硅、氮化硅、氧化锆、尖晶石、印度石、假蓝宝石、刚玉、以及二氧化钛构成的组中的至少1种的陶瓷,更优选为与蜂窝结构体相同材质。作为粘合剂,可以举出:聚乙烯醇、甲基纤维素、CMC(羧甲基纤维素)等。
蜂窝结构体1可以在隔壁12的表面的至少一部分具有表面层。表面层包含磁性体,且具有通气性。
此处,具有通气性是指:表面层的渗透率为1.0×10-13m2以上。从进一步降低压力损失的观点出发,渗透率优选为1.0×10-12m2以上。通过表面层具有通气性,能够抑制由表面层所引起的压力损失。
另外,本说明书中“渗透率”是指:利用下式(1)计算出的物性值,其是作为表示规定的气体从该物(隔壁12)通过时的通过阻力的指标的值。此处,下式(1)中,C表示渗透率(m2),F表示气体流量(cm3/s),T表示试样厚度(cm),V表示气体粘性(dynes·sec/cm2),D表示试样直径(cm),P表示气体压力(PSI)。应予说明,关于下式(1)中的数值,13.839(PSI)=1(atm),68947.6(dynes·sec/cm2)=1(PSI)。
[数学式1]
在测定渗透率时,将附带有表面层的隔壁12切出,在该附带有表面层的状态下,测定渗透率,然后,进行削掉表面层的状态下的渗透率测定,根据表面层与隔壁基材的厚度比率、以及这些渗透率测定结果,计算出表面层的渗透率。
通过表面层包含磁性体,使得包含磁性体的封孔部19被感应加热而传播的热对该表面层进行加热,因此,蜂窝结构体1通过电磁感应而被更好地加热。表面层中包含的磁性体可以采用与上述的封孔部19中包含的磁性体同样的材料。
表面层的气孔率优选为50%以上,更优选为60%以上,进一步优选为70%以上。通过具有50%以上的气孔率,能够抑制压力损失。不过,如果气孔率过高,则表面层变脆,容易剥落,因此,优选为90%以下。
作为利用压汞法测定表面层的气孔率的方法,将附带有表面层的压汞曲线、与仅将表面层削掉的仅有基材的压汞曲线之差视为表面层的压汞曲线,根据削掉的质量和压汞曲线,计算出表面层的气孔率。也可以进行SEM图像拍摄,利用表面层部分的图像解析,根据空隙部与个体部之间的面积比率,计算出表面层的气孔率。
另外,表面层的平均细孔直径优选为10μm以下,更优选为5μm以下,进一步优选为4μm以下,特别优选为3μm以下。通过使平均细孔直径为10μm以下,能够实现较高的粒子捕集效率。不过,如果表面层的平均细孔直径过小,则压力损失增加,因此,优选为0.5μm以上。
作为利用压汞法测定表面层的平均细孔直径的方法,选择压汞仪中的峰值这一形式,将附带有表面层的压汞曲线(孔容频率)与仅将表面层削掉的仅有基材的压汞曲线之差作为表面层的压汞曲线,将其峰值作为平均细孔直径。另外,可以对蜂窝结构体1的截面的SEM图像进行拍摄,通过表面层部分的图像解析,进行空隙部和个体部的二值化,随机选择20以上的空隙,将其内接圆的平均直径作为平均细孔直径。
作为表面层中的磁性体而采用磁性体粒子的情况下,其重均粒径优选为20μm以下。通过使重均粒径为20μm以下,能够通过与其他可控设计因子的结合而将其控制在作为目标的表面层的平均细孔直径、厚度、气孔率全部满足的范围内。应予说明,磁性体粒子的重均粒径的下限没有特别设置,例如可以为0.5μm以上。应予说明,利用激光衍射式粒度分布测定装置来测定重均粒径。
另外,优选为,磁性体粒子的最短径d为0.1~5μm,在将磁性体的最长径设为Lμm时,L/d≥3。由此,能够确保:保持导电性且充分保障通气性的表面层的微结构。对于最短径d,通过对SEM拍摄图像进行图像解析,针对50个粒子将与粒子的最长径正交的线段中的最大线段设为该粒子的最短径,将该最短径利用粒子的数量进行平均,求出最短径d。对于长度,在SEM图像中,将50个以上的粒子的最长径利用粒子的数量进行平均,由此求出最长径L。优选为,磁性体为针状。针状是指:L/d≥5。
另外,表面层的厚度没有特别限定。不过,为了更显著地获得表面层的效果,表面层的厚度优选为10μm以上。另一方面,从避免压力损失增加的观点出发,表面层的厚度优选为80μm以下。表面层的厚度更优选为50μm以下。作为表面层的厚度的测定方法,例如,可以将形成有表面层的蜂窝结构体1沿着与隔室15延伸的方向垂直的方向切断,根据其截面,测定表面层的厚度,取任意5点厚度的测定值的平均值。
图3中记载有:示意性地示出本发明的另一个实施方式所涉及的蜂窝结构体10的具有封孔部28、29的隔室25及隔壁22处的、与隔室延伸的方向(气体流动的方向)平行的截面的截面图。图示的蜂窝结构体10中,流体的流出侧呈开口的隔室B的封孔部29由包含磁性体的材料构成。因此,将蜂窝结构体10用作蜂窝过滤器时的封孔部直接包含磁性体,不需要为了填充包含磁性体的材料而使用蜂窝结构体10的隔室25。结果,能够抑制压力损失增加。另外,图示的蜂窝结构体10中,流体的流出侧呈开口而在流体的流入侧的端面具有封孔部29的隔室B的开口小于:流体的流入侧呈开口而在流体的流出侧的端面具有封孔部28的隔室A的开口,隔室B的封孔部29包含磁性体。根据像这样的构成,在采用了蜂窝结构体10的废气净化装置中,能够使流体更多地从流体的流入侧呈更大开口的隔室A进入,并且,由于隔室B在流体的流入侧具有包含磁性体的封孔部29,所以,只要将呈螺旋状地环绕蜂窝结构体10的外周的线圈配线配置于与隔室B的封孔部29相对应的位置、即在蜂窝结构体10的流体的流入侧的端面附近以呈螺旋状地环绕外周的方式配置线圈配线进行感应加热,则来自在流入侧被加热的端面的热与流体移动一起在隔壁22及隔室25内传播,加热至流出侧。因此,不需要在蜂窝结构体10的整个长度方向上将整体加热,能量效率良好。另外,由于可以仅为局部加热,无需在蜂窝结构体1的整个长度方向上将整体加热,所以能够降低PM(粒子状物质)的燃烧所需要的投入电力。另外,将容易偏在于隔室25内的端面附近的PM(粒子状物质)迅速地燃烧除去而使蜂窝结构过滤器再生变得容易。图3所示的蜂窝结构体10中,如上所述,使隔室B的开口小于隔室A的开口,但不限定于此,隔室A的开口和隔室B的开口可以形成为不同的大小,具有小开口的隔室A的封孔部28或隔室B的封孔部29由包含磁性体的材料构成。
图4中记载有:示意性地示出本发明的另一个实施方式所涉及的蜂窝结构体30的具有封孔部38、39的隔室35及隔壁32处的、与隔室延伸的方向(气体流动的方向)平行的截面的截面图。图示的蜂窝结构体30中,流体的流出侧呈开口而在流体的流入侧的端面具有封孔部39的隔室B的开口形成为:与流体的流入侧呈开口而在流体的流出侧的端面具有封孔部38的隔室A的开口大致相同的大小,隔室B的封孔部39由包含磁性体的材料构成。隔室B的封孔部39的隔室延伸的方向上的深度从蜂窝结构体30的中心至外周而形成为大致相同的深度。通过将隔室B的封孔部39由包含磁性体的材料构成,使得将蜂窝结构体30用作蜂窝过滤器时的封孔部直接包含磁性体,不需要为了填充包含磁性体的材料而使用蜂窝结构体30的隔室35。结果,能够抑制压力损失增加。另外,图示的蜂窝结构体30中,隔室B在流体的流入侧的端面具有包含磁性体的封孔部39。因此,在采用蜂窝结构体30制成废气净化装置的情况下,可以设为与采用了上述的蜂窝结构体1的废气净化装置6中描述的构成同样的配置构成。
(2.废气净化装置)
图5是组装有蜂窝结构体1的废气净化装置6的废气流路的概要图。废气净化装置6具有:蜂窝结构体1、以及呈螺旋状地环绕蜂窝结构体1的外周的线圈配线4,废气的流路可以由金属管2来确定。可以将废气净化装置6配置于金属管2的扩径部2a。线圈配线4可以通过固定部件5而固定于金属管2内。固定部件5优选为陶瓷纤维等耐热性部件。蜂窝结构体1可以担载有催化剂。
线圈配线4呈螺旋状地卷绕于蜂窝结构体1的外周。还假设:使用了2条以上线圈配线4的方案。与开关SW的接通(ON)相应地,从交流电源CS供给的交流电流流通于线圈配线4,结果,在线圈配线4的周围产生周期性地变化的磁场。应予说明,开关SW的接通和切断通过控制部3来控制。控制部3能够与发动机的启动同步地使开关SW接通,从而使交流电流流通于线圈配线4。此外,还假设:与发动机的启动无关地(例如,与司机按下的加热开关的工作相应地),控制部3将开关SW接通的方案。
本发明中,蜂窝结构体1根据与流通于线圈配线4的交流电流相对应的磁场变化而升温。由此,由蜂窝结构体1捕集的碳微粒等进行燃烧。另外,蜂窝结构体1担载有催化剂的情况下,蜂窝结构体1的升温能够提高由蜂窝结构体1中包含的催化剂载体所担载的催化剂的温度,从而促进催化反应。简而言之,一氧化碳(CO)、氮氧化物(NOx)、烃(CH)被氧化或还原为二氧化碳(CO2)、氮(N2)、水(H2O)。
图6是:将组装有蜂窝结构体10的废气净化装置26的废气流路放大显示的概要图。废气净化装置26中,废气的流路具有:蜂窝结构体10、以及呈螺旋状地环绕于蜂窝结构体10的外周的线圈配线24。废气的流路可以由金属管27来确定。废气净化装置26可以配置于金属管27的扩径部27a。线圈配线24通过由陶瓷纤维等耐热性部件构成的固定部件25而固定于金属管27内。在组装有蜂窝结构体10的废气净化装置26的废气流路中,隔室B在流体的流入侧具有包含磁性体的封孔部29,将呈螺旋状地环绕于蜂窝结构体10的外周的线圈配线24配置于与隔室B的封孔部29相对应的位置。即,仅在蜂窝结构体10的流体的流入侧的端面附近以呈螺旋状地环绕于外周的方式配置线圈配线24进行感应加热。来自在流入侧被加热的端面的热与流体移动一起在隔壁22及隔室25内传播,加热至流出侧。由此,不需要在蜂窝结构体10的整个长度方向上将整体加热,能量效率良好。
(3.蜂窝结构体的制造方法)
以下,对蜂窝结构体的制造方法进行说明。首先,制作具有多孔质的隔壁且通过隔壁而区划形成有多个隔室的蜂窝结构体。例如,制作包含堇青石的蜂窝结构体的情况下,首先,作为坯料用材料,准备出堇青石化原料。堇青石化原料由于按堇青石结晶的理论组成来配合各成分,所以配合二氧化硅源成分、氧化镁源成分、以及氧化铝源成分等。其中,作为二氧化硅源成分,优选使用石英、熔融二氧化硅,此外,优选使该二氧化硅源成分的粒径为100~150μm。
作为氧化镁源成分,例如可以举出:滑石、菱镁矿等。其中,优选为滑石。滑石优选在堇青石化原料中含有37~43质量%。滑石的粒径(平均粒径)优选为5~50μm,更优选为10~40μm。另外,氧化镁(MGO)源成分可以含有作为杂质的Fe2O3、CaO、Na2O、K2O等。
作为氧化铝源成分,就杂质较少这一点而言,优选含有氧化铝及氢氧化铝中的至少任一种。另外,堇青石化原料中,氢氧化铝优选含有10~30质量%,氧化铝优选含有0~20质量%。
接下来,准备向堇青石化原料中添加的坯料用材料(添加剂)。作为添加剂,至少使用粘合剂和造孔剂。并且,除了粘合剂和造孔剂以外,还可以使用分散剂、表面活性剂。
作为造孔剂,可以使用在堇青石的烧成温度以下能够与氧反应而氧化除去的物质、或者在堇青石的烧成温度以下的温度具有熔点的低熔点反应物质等。作为能够氧化除去的物质,例如可以举出:树脂(特别是粒子状的树脂)、石墨(特别是粒子状的石墨)等。作为低熔点反应物质,可以使用选自由铁、铜、锌、铅、铝、以及镍构成的组中的至少一种金属、以这些金属为主成分的合金(例如、铁的情况下为碳钢、铸铁、不锈钢)、或以二种以上为主成分的合金。其中,低熔点反应物质优选为粉粒状或纤维状的铁合金。此外,其粒径或纤维径(平均直径)优选为10~200μm。低熔点反应物质的形状可以举出:球状、卷菱形状、金平糖状等,如果是这些形状,则容易控制细孔的形状,故优选。
作为粘合剂,例如可以举出:羟丙基甲基纤维素、甲基纤维素、羟乙基纤维素、羧甲基纤维素、聚乙烯醇等。另外,作为分散剂,例如可以举出:糊精、多元醇等。另外,作为表面活性剂,例如可以举出脂肪酸皂。应予说明,添加剂可以单独使用一种,也可以使用二种以上。
接下来,按相对于堇青石化原料100质量份而言、粘合剂3~8质量份、造孔剂3~40质量份、分散剂0.1~2质量份、水10~40质量份的比例,将粘合剂、造孔剂、分散剂以及水混合,并将这些坯料用材料进行混炼,制备坯料。
接下来,将制备的坯料利用挤出成型法、注射成型法、压制成型法等,成型为蜂窝形状,得到生的蜂窝成型体。由于连续成型容易,且能够使例如堇青石结晶取向,所以优选采用挤出成型法。可以采用真空练泥机、冲压式挤出成型机、双螺杆式连续挤出成型机等装置来进行挤出成型法。
接下来,使蜂窝成型体干燥,调整为规定的尺寸,得到蜂窝干燥体。可以利用热风干燥、微波干燥、介电干燥、减压干燥、真空干燥、冷冻干燥等来进行蜂窝成型体的干燥。应予说明,由于能够将整体迅速且均匀地干燥,所以优选将热风干燥和微波干燥或介电干燥组合来进行干燥。
接下来,准备封孔部的原料。封孔部的材料(封孔用浆料)可以采用与隔壁(蜂窝干燥体)相同的坯料用材料,也可以采用不同的材料。具体而言,可以如下获得,即,将陶瓷原料、表面活性剂、以及水混合,根据需要添加烧结助剂、造孔剂等,制成浆料状,使用混合机等进行混炼,由此得到封孔部的原料。
接下来,在蜂窝干燥体的一个端面的隔室开口部的一部分施加掩膜,将其端面浸渍于贮存有封孔用浆料的贮存容器中,向未施加掩膜的隔室中填充封孔用浆料。同样地,在蜂窝干燥体的另一个端面的隔室开口部的一部分施加掩膜,将其端面浸渍于贮存有封孔用浆料的贮存容器中,向未施加掩膜的隔室中填充封孔用浆料。然后,使其干燥,进行烧成,由此得到具有封孔部的蜂窝结构体。上述干燥的条件可以采用与使蜂窝成型体干燥的条件同样的条件。另外,关于上述烧成的条件,在使用了堇青石化原料的情况下,通常可以设为大气气氛下、1410~1440℃的温度、3~15小时。
此处,预先使供一个或两个端面的隔室开口部浸渍的封孔用浆料中含有磁性体。由此,蜂窝结构体的隔室A的封孔部及隔室B的封孔部中的一者或两者包含磁性体。
作为封孔方法,将糊状的材料用刮刀这样的刮板挤入是较为简单的方法。利用刮刀的挤入次数来控制深度比较简单。对于想要将磁性体放入得较深的隔室的部分,使挤入次数增多,对于周边较浅的部位,使挤入次数减少。
另外,得到的蜂窝结构体以在其外周面形成有外周壁的状态进行制作的情况下,可以设为对其外周面进行磨削而将外周壁去除的状态。在后续工序中,在像这样去除外周壁后的蜂窝结构体的外周涂布涂层材料,形成外周涂层。另外,对外周面进行磨削的情况下,可以将外周壁的一部分磨削去除,在该部分通过涂层材料而形成外周涂层。
制备涂层材料的情况下,例如可以采用双轴旋转式的纵型混合机进行制备。
另外,涂层材料中可以进一步含有胶体二氧化硅、有机粘合剂、粘土等。应予说明,有机粘合剂优选采用0.05~0.5质量%,更优选采用0.1~0.2质量%。另外,粘土优选采用0.2~2.0质量%,更优选采用0.4~0.8质量%。
在之前制作的蜂窝结构体的外周面涂布涂层材料,使所涂布的涂层材料干燥,形成外周涂层。通过像这样进行构成,能够有效地抑制在干燥及热处理时外周涂层发生开裂。
作为涂层材料的涂布方法,例如可以举出如下方法,即,将蜂窝结构体载放于旋转台之上,使其旋转,在使涂层材料从刮板状的涂布喷嘴喷出的状态下,仿照蜂窝结构体的外周部按压涂布喷嘴进行涂布。通过像这样进行构成,能够将涂层材料以均匀的厚度进行涂布。另外,所形成的外周涂层的表面粗糙度变小,外观优异,且能够形成不易因热冲击而破损的外周涂层。
应予说明,对蜂窝结构体的外周面进行磨削而去除了外周壁的情况下,在蜂窝结构体的整个外周面涂布涂层材料,形成外周涂层。另一方面,在蜂窝结构体的外周面存在外周壁或者一部分外周壁被去除的情况下,可以局部涂布涂层材料,形成外周涂层,当然也可以在蜂窝结构体的外周面整个区域涂布涂层材料而形成外周涂层。
将所涂布的涂层材料(即、未干燥的外周涂层)干燥的方法没有特别限制,例如,从防止干燥开裂的观点出发,可以优选采用如下方法,即,于室温保持24小时以上,使涂层材料中的水分的25%以上干燥后,在电炉中于600℃保持1小时以上,将水分及有机物除去。
另外,蜂窝结构体的隔室的开口部未被预先密封的情况下,可以形成外周涂层之后,对隔室的开口部进行封孔。
另外,由于通过对得到的蜂窝结构体的外周面照射激光而使得涂层材料中包含的碳化硅粉末显色,所以,可以对得到的蜂窝结构体的外周涂层照射激光,印刷(标记)产品信息等。
作为利用激光进行标记时使用的激光,例如可以举出二氧化碳气体(CO2)激光、YAG激光、YVO4激光作为优选例。照射激光的激光器的条件可以根据使用的激光的种类而适当选择,例如使用CO2激光的情况下,优选以输出15~25W、扫描速度400~600mm/s进行标记。通过像这样进行标记,使得照射部分按呈现黑色至绿色这样的暗色的方式进行显色,与非照射部分之间的显色对比非常好。
在蜂窝结构体担载有催化剂的情况下,即便在上述利用激光进行印刷之后,印刷部分也不会劣化,即便在担载催化剂之后,也能够良好地阅读上述印刷。应予说明,催化剂的担载方法没有特别限制,可以按照以往的蜂窝结构体的制造方法中进行的催化剂担载的方法来进行。
符号说明
1、10、30 蜂窝结构体
2、27 金属管
3 控制部
4、24 线圈配线
5、25 固定部件
6、26 废气净化装置
11 外周壁
12、22、32 隔壁
13 流入端面
14 流出端面
15、25、35 隔室(隔室A+隔室B)
18、28、38 隔室A的封孔部
19、29、39 隔室B的封孔部
Claims (14)
1.一种蜂窝结构体,其是柱状的蜂窝结构体,
该柱状的蜂窝结构体具有:多孔质的隔壁及位于最外周的外周壁,该隔壁区划形成从流体的流入侧的端面即流入端面延伸至流体的流出侧的端面即流出端面的多个隔室,该隔室形成流体的流路,
所述蜂窝结构体的特征在于,
所述隔室包括:所述流体的流入侧呈开口而在所述流体的流出侧的端面具有封孔部的多个隔室A、以及与所述隔室A分别交替地配置的且所述流体的流出侧呈开口而在所述流体的流入侧的端面具有封孔部的多个隔室B,
所述隔室A的封孔部及所述隔室B的封孔部中的一者或两者包含磁性体。
2.根据权利要求1所述的蜂窝结构体,其特征在于,
所述封孔部的磁性体的居里点为700℃以上。
3.根据权利要求2所述的蜂窝结构体,其特征在于,
所述封孔部的磁性体的居里点为800℃以上。
4.根据权利要求1~3中的任一项所述的蜂窝结构体,其特征在于,
包含所述磁性体的所述隔室A的封孔部及所述隔室B的封孔部中的一者或两者的隔室延伸的方向上的深度随着从所述蜂窝结构体的中心趋向所述最外周而发生变化。
5.根据权利要求4所述的蜂窝结构体,其特征在于,
包含所述磁性体的所述隔室A的封孔部及所述隔室B的封孔部中的一者或两者的隔室延伸的方向上的深度随着从所述蜂窝结构体的中心趋向所述最外周而逐渐减小。
6.根据权利要求1~5中的任一项所述的蜂窝结构体,其特征在于,
在所述隔壁的表面的至少一部分具有表面层,所述表面层包含磁性体,且具有通气性。
7.根据权利要求1~6中的任一项所述的蜂窝结构体,其特征在于,
所述隔室A的开口和所述隔室B的开口形成为不同的大小,具有小开口的所述隔室A或所述隔室B的封孔部由包含磁性体的材料构成。
8.根据权利要求7所述的蜂窝结构体,其特征在于,
所述隔室B的开口小于所述隔室A的开口,所述隔室B的封孔部包含磁性体。
9.根据权利要求1~8中的任一项所述的蜂窝结构体,其特征在于,
所述隔室A的封孔部及所述隔室B的封孔部还包含玻璃。
10.根据权利要求1~9中的任一项所述的蜂窝结构体,其特征在于,
所述隔壁及外周壁由陶瓷材料构成。
11.根据权利要求10所述的蜂窝结构体,其特征在于,
所述陶瓷材料为选自由堇青石、碳化硅、钛酸铝、氮化硅、多铝红柱石以及氧化铝构成的组中的至少1个。
12.根据权利要求1~11中的任一项所述的蜂窝结构体,其特征在于,
在形成所述多个隔室的内壁的所述多孔质的隔壁的表面和/或所述隔壁的细孔内设置有:选自由三元催化剂、氧化催化剂、SCR催化剂、以及LNT催化剂构成的组中的至少1种催化剂。
13.一种废气净化装置,其特征在于,具有:
权利要求1~12中的任一项所述的蜂窝结构体、以及
线圈配线,该线圈配线呈螺旋状地环绕于所述蜂窝结构体的外周。
14.根据权利要求13所述的废气净化装置,其特征在于,
所述线圈配线设置于与所述隔室A的封孔部及所述隔室B的封孔部中的一者或两者相对应的位置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018225822 | 2018-11-30 | ||
JP2018-225822 | 2018-11-30 | ||
PCT/JP2019/034020 WO2020110396A1 (ja) | 2018-11-30 | 2019-08-29 | ハニカム構造体及び排気ガス浄化装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113164853A true CN113164853A (zh) | 2021-07-23 |
Family
ID=70852773
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201980067482.3A Pending CN113164853A (zh) | 2018-11-30 | 2019-08-29 | 蜂窝结构体及废气净化装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11369952B2 (zh) |
JP (1) | JP7229272B2 (zh) |
CN (1) | CN113164853A (zh) |
DE (1) | DE112019005966T5 (zh) |
WO (1) | WO2020110396A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021186792A1 (ja) * | 2020-03-19 | 2021-09-23 | 日本碍子株式会社 | ハニカム構造体、排気ガス浄化触媒及び排気ガス浄化システム |
DE112021004028T5 (de) * | 2020-11-04 | 2023-05-17 | Ngk Insulators, Ltd. | Katalysatorträger und katalysatorsystem mit induktionserwärmung |
CN116528960A (zh) * | 2020-12-02 | 2023-08-01 | 日本碍子株式会社 | 蜂窝结构体、废气净化装置以及蜂窝结构体的制造方法 |
JP2022142543A (ja) * | 2021-03-16 | 2022-09-30 | 日本碍子株式会社 | ハニカム構造体及び電気加熱式担体 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050102986A1 (en) * | 2003-11-19 | 2005-05-19 | Safety Tech International Inc. | Self-sealing protection filter port |
CN101646638A (zh) * | 2007-03-28 | 2010-02-10 | 日立金属株式会社 | 蜂窝陶瓷结构体的制造方法 |
WO2016021186A1 (ja) * | 2014-08-07 | 2016-02-11 | 日本特殊陶業株式会社 | 排ガス流路部材、排ガス浄化装置、その昇温方法、及び、排ガス流路部材用の磁性体 |
CN106640292A (zh) * | 2015-09-29 | 2017-05-10 | 排放方案先进技术股份有限公司 | 采用导向感应加热的气态排放物处理装置和方法 |
CN107269355A (zh) * | 2016-03-30 | 2017-10-20 | 日本碍子株式会社 | 蜂窝结构体 |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4920752B1 (zh) | 1969-08-28 | 1974-05-27 | ||
CA1145270A (en) | 1979-12-03 | 1983-04-26 | Morris Berg | Ceramic filters for diesel exhaust particulates and methods of making |
GB2064360B (en) * | 1979-12-03 | 1984-05-16 | Gen Motors Corp | Ceramic filters for diesel exhaust particulates and methods for making such filters |
JP3991447B2 (ja) * | 1998-05-26 | 2007-10-17 | トヨタ自動車株式会社 | 内燃機関の誘導発熱式浄化装置 |
MXPA04000118A (es) * | 2001-07-06 | 2004-06-03 | 3M Innovative Properties Co | Sustratos de fibras inorganicas para sistemas de escape y metodos de fabricacion de los mismos. |
US20030165638A1 (en) | 2001-07-06 | 2003-09-04 | Louks John W. | Inorganic fiber substrates for exhaust systems and methods of making same |
US20070252310A1 (en) * | 2006-04-27 | 2007-11-01 | Brockway David J | Method for manufacturing a plugged honeycomb filter with a single firing cycle |
JP2008136918A (ja) | 2006-11-30 | 2008-06-19 | Hitachi Metals Ltd | セラミックハニカムフィルタ |
JP2010522106A (ja) | 2007-03-20 | 2010-07-01 | コーニング インコーポレイテッド | セラミック・フィルタのための低収縮率施栓用混合物、栓を施されたハニカム・フィルタおよびその製造方法 |
KR20080095975A (ko) | 2007-04-26 | 2008-10-30 | 주식회사 칸세라 | 하니컴 세라믹 필터용 탄화규소 세그먼트의 제조방법 |
JP5261256B2 (ja) | 2009-03-30 | 2013-08-14 | 日本碍子株式会社 | 通電発熱用ハニカム体及びその製造方法 |
JP4920752B2 (ja) | 2010-01-05 | 2012-04-18 | 日本碍子株式会社 | ハニカム構造体 |
US10226738B2 (en) * | 2013-09-18 | 2019-03-12 | Advanced Technology Emission Solutions Inc. | Apparatus and method for gaseous emissions treatment using front end induction heating |
US10143967B2 (en) * | 2013-09-18 | 2018-12-04 | Advanced Technology Emission Solutions Inc. | Apparatus and method for gaseous emissions treatment with directed induction heating |
US10941686B2 (en) * | 2013-09-18 | 2021-03-09 | Advanced Technology Emission Solutions Inc. | Gaseous emissions treatment structure and method for induction heating |
US10132221B2 (en) | 2013-09-18 | 2018-11-20 | Advanced Technology Emission Solutions Inc. | Apparatus and method for gaseous emissions treatment with enhanced catalyst distribution |
US10207222B2 (en) * | 2013-09-18 | 2019-02-19 | Advanced Technology Emission Solutions Inc. | Apparatus and method for gaseous emissions treatment with induction heating of loop conductors |
JP6231908B2 (ja) | 2014-03-14 | 2017-11-15 | 日本碍子株式会社 | 目封止ハニカム構造体 |
EP3454984A4 (en) * | 2016-05-11 | 2019-12-18 | BASF Corporation | CATALYTIC COMPOSITION COMPRISING A MAGNETIC MATERIAL SUITABLE FOR INDUCTION HEATING |
JP2018030072A (ja) | 2016-08-23 | 2018-03-01 | 住友化学株式会社 | ハニカムフィルタ |
EP3839379A3 (en) | 2016-11-02 | 2021-06-30 | Ngk Insulators, Ltd. | Magnetic member for magnetic refrigerator |
-
2019
- 2019-08-29 JP JP2020558103A patent/JP7229272B2/ja active Active
- 2019-08-29 WO PCT/JP2019/034020 patent/WO2020110396A1/ja active Application Filing
- 2019-08-29 DE DE112019005966.1T patent/DE112019005966T5/de active Pending
- 2019-08-29 CN CN201980067482.3A patent/CN113164853A/zh active Pending
-
2021
- 2021-05-18 US US17/302,991 patent/US11369952B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050102986A1 (en) * | 2003-11-19 | 2005-05-19 | Safety Tech International Inc. | Self-sealing protection filter port |
CN101646638A (zh) * | 2007-03-28 | 2010-02-10 | 日立金属株式会社 | 蜂窝陶瓷结构体的制造方法 |
WO2016021186A1 (ja) * | 2014-08-07 | 2016-02-11 | 日本特殊陶業株式会社 | 排ガス流路部材、排ガス浄化装置、その昇温方法、及び、排ガス流路部材用の磁性体 |
CN106640292A (zh) * | 2015-09-29 | 2017-05-10 | 排放方案先进技术股份有限公司 | 采用导向感应加热的气态排放物处理装置和方法 |
CN107269355A (zh) * | 2016-03-30 | 2017-10-20 | 日本碍子株式会社 | 蜂窝结构体 |
Also Published As
Publication number | Publication date |
---|---|
DE112019005966T5 (de) | 2021-08-19 |
JPWO2020110396A1 (ja) | 2021-11-11 |
WO2020110396A1 (ja) | 2020-06-04 |
JP7229272B2 (ja) | 2023-02-27 |
US20210291157A1 (en) | 2021-09-23 |
US11369952B2 (en) | 2022-06-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7423532B2 (ja) | ハニカム構造体、排気ガス浄化装置、排気システム及びハニカム構造体の製造方法 | |
CN113164853A (zh) | 蜂窝结构体及废气净化装置 | |
US11970961B2 (en) | Honeycomb structure, exhaust gas purifying device and exhaust system | |
US20210388749A1 (en) | Honeycomb structure and exhaust gas purifying device | |
US20220362704A1 (en) | Honeycomb structure and exhaust gas purifying device | |
CN113557072B (zh) | 蜂窝结构体、废气净化装置以及蜂窝结构体的制造方法 | |
US20220118391A1 (en) | Honeycomb structure and exhaust gas purifying device | |
CN113557088B (zh) | 蜂窝结构体及废气净化装置 | |
US20220120204A1 (en) | Honeycomb structure and exhaust gas purifying device | |
WO2021049075A1 (ja) | ハニカム構造体及び排気ガス浄化装置 | |
JP7368614B2 (ja) | ハニカム構造体及び排気ガス浄化装置 | |
JP2024045347A (ja) | 触媒担体及び誘導加熱触媒システム |
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 |