WO2006137157A1 - ハニカム構造体 - Google Patents
ハニカム構造体 Download PDFInfo
- Publication number
- WO2006137157A1 WO2006137157A1 PCT/JP2005/011658 JP2005011658W WO2006137157A1 WO 2006137157 A1 WO2006137157 A1 WO 2006137157A1 JP 2005011658 W JP2005011658 W JP 2005011658W WO 2006137157 A1 WO2006137157 A1 WO 2006137157A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cam
- unit
- experimental example
- alumina
- cross
- Prior art date
Links
- 239000002245 particle Substances 0.000 claims abstract description 61
- 239000000463 material Substances 0.000 claims abstract description 50
- 239000000919 ceramic Substances 0.000 claims abstract description 38
- 239000012784 inorganic fiber Substances 0.000 claims abstract description 34
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 77
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 60
- 239000003054 catalyst Substances 0.000 claims description 57
- 239000011230 binding agent Substances 0.000 claims description 42
- 239000000377 silicon dioxide Substances 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 24
- 238000000576 coating method Methods 0.000 claims description 24
- 238000000746 purification Methods 0.000 claims description 11
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 229910000510 noble metal Inorganic materials 0.000 claims description 7
- 239000004113 Sepiolite Substances 0.000 claims description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 5
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 5
- 229910052624 sepiolite Inorganic materials 0.000 claims description 5
- 235000019355 sepiolite Nutrition 0.000 claims description 5
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 claims description 3
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 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 3
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- -1 titer Chemical compound 0.000 claims description 3
- 239000010457 zeolite Substances 0.000 claims description 3
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims description 2
- 239000010954 inorganic particle Substances 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 53
- 239000000835 fiber Substances 0.000 description 36
- 239000003566 sealing material Substances 0.000 description 34
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 32
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 28
- 238000012360 testing method Methods 0.000 description 26
- 230000035939 shock Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 17
- 238000010304 firing Methods 0.000 description 15
- 229910052751 metal Inorganic materials 0.000 description 14
- 239000002184 metal Substances 0.000 description 14
- 238000002474 experimental method Methods 0.000 description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 12
- 238000005259 measurement Methods 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000000523 sample Substances 0.000 description 7
- 230000004580 weight loss Effects 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 229910052697 platinum Inorganic materials 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 230000008646 thermal stress Effects 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000013585 weight reducing agent Substances 0.000 description 4
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 101100203596 Caenorhabditis elegans sol-1 gene Proteins 0.000 description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 229960000892 attapulgite Drugs 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
- 238000002485 combustion reaction Methods 0.000 description 3
- 229910052878 cordierite Inorganic materials 0.000 description 3
- 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 3
- 238000011068 loading method Methods 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 229920000609 methyl cellulose Polymers 0.000 description 3
- 239000001923 methylcellulose Substances 0.000 description 3
- 235000010981 methylcellulose Nutrition 0.000 description 3
- 229910052625 palygorskite Inorganic materials 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 239000002612 dispersion medium Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000011232 storage material Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 1
- 239000004375 Dextrin Substances 0.000 description 1
- 229920001353 Dextrin Polymers 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- VCUFZILGIRCDQQ-KRWDZBQOSA-N N-[[(5S)-2-oxo-3-(2-oxo-3H-1,3-benzoxazol-6-yl)-1,3-oxazolidin-5-yl]methyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C1O[C@H](CN1C1=CC2=C(NC(O2)=O)C=C1)CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F VCUFZILGIRCDQQ-KRWDZBQOSA-N 0.000 description 1
- 241001077878 Neurolaena lobata Species 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229940000488 arsenic acid Drugs 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 235000019425 dextrin Nutrition 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 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
- 238000001914 filtration Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000018537 nitric oxide storage Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical compound [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
Classifications
-
- 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
- B01D46/2422—Mounting of the body within a housing
-
- 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
- B01D46/2455—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the whole honeycomb or segments
-
- 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
- B01D46/2466—Honeycomb filters characterized by the geometrical structure, shape, pattern or configuration or parameters related to the geometry of the structure of the adhesive layers, i.e. joints between segments
-
- 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
- B01D46/2478—Structures comprising honeycomb segments
-
- 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
- B01D46/24—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
- B01D46/2484—Cell density, area or aspect ratio
-
- 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
- B01D46/2498—The honeycomb filter being defined by mathematical relationships
-
- B01J35/30—
-
- B01J35/56—
-
- 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
- F01N3/2828—Ceramic multi-channel monoliths, e.g. honeycombs
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24149—Honeycomb-like
Definitions
- the present invention relates to a her cam structure.
- a Harcam catalyst generally used for purification of automobile exhaust gas has a monolithic and low thermal expansion cordierite-like no-cam structure surface on which a high specific surface area material such as activated alumina and a catalytic metal such as platinum are applied. Manufactured by carrying.
- alkaline earth metals such as Ba are supported as NOx storage agents for NOx treatment under oxygen-excessive atmospheres such as lean burn engines and diesel engines.
- Patent Document 1 Japanese Patent Laid-Open No. 10-263416
- Patent Document 2 DE4341159
- the above-described conventional technology has the following problems.
- High specific surface area materials such as alumina are sintered by thermal aging, and the specific surface area decreases.
- the catalyst metal such as platinum that is supported is agglomerated and has a large particle size and a small specific surface area.
- after heat aging used as a catalyst support
- the cordierite no-cam structure as disclosed in Japanese Patent Application Laid-Open No. 10-263 416 is important.
- the catalyst carrier should be made high by devising the cell shape, cell density, wall thickness, etc. to increase the contact probability with exhaust gas.
- the specific surface area was increased, it was still not large enough, so the catalyst metal was not sufficiently dispersed and the exhaust gas purification performance after heat aging was insufficient. Therefore, in order to make up for this shortage, attempts have been made to solve the problem by supporting a large amount of catalyst metal or increasing the size of the catalyst carrier itself.
- noble metals such as platinum are very expensive and are a limited and valuable resource.
- when installing in an automobile of its installation space is both suitable means because it was very limited, was Enaka'.
- the Hercam structure disclosed in Japanese Patent Application Laid-Open No. 5-213681 that extrudes a material with a high specific surface area together with inorganic fibers and an inorganic binder has a high specific surface area material force.
- the installation space is very limited. Therefore, in order to increase the specific surface area of the carrier per unit volume, means such as thinning the partition walls are used. However, by doing so, the strength of the base material is always so weak.
- alumina and the like have a large coefficient of thermal expansion, and cracks are easily generated by thermal stress during firing (calcination) and use. Considering these, when used for automobiles, external forces such as thermal stress and large vibrations due to sudden temperature changes are applied during use, so it is easily damaged and the shape of the honeycomb structure cannot be retained. There was a problem that it could not function as a catalyst carrier.
- the automobile catalyst carrier disclosed in DE4341159 is intended to increase the size of the her cam structure, so that the cross cam capacity of the her cam unit is 200 cm 2 or more. However, when it is used in a situation where thermal stress due to sudden temperature changes and large vibrations are applied, it is easily damaged as described above, and the shape cannot be retained, and the function as a catalyst carrier is not achieved. There was a problem that could not be fulfilled.
- the present invention has been made in view of such problems, and an object of the present invention is to provide a honeycomb structure having high strength against thermal shock and vibration as well as highly dispersed catalyst components. Means for solving the problem
- the honeycomb structure of the present invention has a hard cam structure in which a plurality of hard cam units in which a large number of through holes are arranged in parallel in the longitudinal direction with a wall surface of the through hole being bundled via a sealing material layer.
- the her cam unit includes at least ceramic particles, inorganic fibers, and Z or whiskers, and has a cross-sectional area in a cross section perpendicular to the longitudinal direction of the her cam unit.
- the hard - wherein the flatness of the outer wall of the cam unit is 0. 1 ⁇ 1 5 mm..
- the ratio of the total cross-sectional area in the cross section perpendicular to the longitudinal direction of the her-cam unit to the cross-sectional area in the cross section perpendicular to the longitudinal direction of the honeycomb structure Is preferably 85% or more.
- the above-mentioned her cam structure desirably has a coating material layer on the outer peripheral surface in which no through hole is opened. Thereby, an outer peripheral surface can be protected and intensity
- the ceramic particles are at least one selected from the group consisting of alumina, silica, zirconia, titanium, ceria, mullite, and zeolite. As a result, the specific surface area of the her cam unit can be improved.
- the above-mentioned Hercom structure is selected from the group consisting of the inorganic fiber and Z or the Wis power consisting of alumina, silicon force, silicon carbide, silica alumina, glass, potassium titanate, and aluminum borate. One or more types are desirable. As a result, the strength of the two-cam unit can be improved.
- the her cam unit is manufactured using a mixture containing the inorganic particles and inorganic fibers and Z or Wis power and an inorganic binder, and the inorganic binder is used.
- Is preferably at least one selected from the group consisting of alumina sol, silica sol, titasol, water glass, sepiolite and attapulgite.
- the catalyst component preferably contains one or more components selected from the group consisting of noble metals, alkali metals, alkaline earth metals, and oxides. Thereby, purification performance can be improved.
- the above-mentioned hard cam structure is desirably used for exhaust gas purification of a vehicle.
- a honeycomb structure having high strength against thermal shock and vibration can be provided.
- FIG. 1A is a conceptual diagram of a her cam unit 11 according to the present invention.
- FIG. 1B is a conceptual diagram of the honeycomb structure 10 of the present invention.
- FIG. 2A is an explanatory diagram of the flatness of the outer wall of the hard cam unit 11.
- FIG. 2B is a diagram showing another form of the outer wall of the honeycomb unit 11.
- FIG. 2C is a view showing another form of the outer wall of the honeycomb unit 11.
- FIG. 3 is an SEM photograph of the wall surface of the honeycomb unit 11 of the present invention.
- FIG. 4A is an explanatory diagram of an experimental example in which a plurality of heavy cam units 11 are joined.
- FIG. 4B is an explanatory diagram of an experimental example in which a plurality of her cam units 11 are joined.
- FIG. 4C is an explanatory diagram of an experimental example in which a plurality of her cam units 11 are joined.
- FIG. 4D is an explanatory diagram of an experimental example in which a plurality of 4D] hard cam units 11 are joined.
- FIG. 5A is an explanatory diagram of an experimental example in which a plurality of heavy cam units 11 are joined.
- FIG. 5B is an explanatory diagram of an experimental example in which a plurality of heavy cam units 11 are joined.
- FIG. 5C is an explanatory diagram of an experimental example in which a plurality of heavy cam units 11 are joined.
- FIG. 6A is a front view of the vibration device 20.
- FIG. 6B is a side view of the vibration device 20.
- FIG. 7 An explanatory diagram of the pressure loss measuring device 40.
- FIG. 8 A diagram showing the relationship between the cross-sectional area of the her cam unit, the weight reduction rate, and the pressure loss.
- FIG. 9 This is a diagram showing the relationship between the unit area ratio, the weight reduction rate, and the pressure loss.
- FIG. 10 is a diagram showing the relationship between the aspect ratio and weight loss rate of silica-alumina fiber.
- the hard cam structure 10 of the present invention has a large number of through-holes.
- a plurality of no-cam units arranged in parallel in the longitudinal direction with a gap between them to form a her-cam structure in which a plurality of the no-cam units are bound via a sealing material layer.
- Fiber and Z or whisker, the cross-sectional area in the cross section perpendicular to the longitudinal direction of the her cam unit is 5 cm 2 or more and 50 cm 2 or less, and the flatness of the outer wall of the honeycomb unit is 0.1-1 It is characterized by being 5mm.
- This her cam structure has a structure in which a plurality of her cam units are joined via a sealing material layer, so that the strength against thermal shock and vibration can be increased. As this reason
- the size of the two-cam unit is a sealing material layer that joins multiple her cam units if the cross-sectional area perpendicular to the through-hole (simply referred to as the cross-sectional area; the same applies hereinafter) is less than 5 cm 2 .
- the cross-sectional area of the catalyst increases, the specific surface area carrying the catalyst becomes relatively small and the pressure loss becomes relatively large. If the cross-sectional area exceeds 50 cm 2 , the unit size is too large. Therefore, it is impossible to sufficiently suppress the thermal stress generated in each her cam unit.
- the cross-sectional area of the unit is in the range of 5 to 50 cm 2 , keeping the specific surface area large, keeping the pressure loss small, having sufficient strength against thermal stress, high durability and practical use Level.
- the cross-sectional area means that when the two-cam structure includes a plurality of hard-cam units having different cross-sectional areas, it is the basic unit of the her-cam unit that constitutes the hard-cam structure.
- This is the cross-sectional area, usually the one with the largest cross-sectional area of the her cam unit.
- the ratio of the total cross-sectional area in the cross section perpendicular to the longitudinal direction of the her-cam unit to the cross-sectional area in the cross section perpendicular to the longitudinal direction of the honeycomb structure is 85% or more More than 90% More preferably.
- this ratio is less than 85%, the cross-sectional area of the sealing material layer is increased, and the total cross-sectional area of the her cam unit is reduced. Therefore, the specific surface area supporting the catalyst is relatively small and the pressure loss is relatively small. Because it grows big. Moreover, when this ratio is 90% or more, the pressure loss can be further reduced.
- the flatness of the outer wall of the her cam unit is 0.1 to 1.5 mm, and the joining force between the her cam units can be increased.
- the “flatness of the outer wall of the Her-cam unit” is an index representing the degree of “warping” in the longitudinal direction of the Her-cam unit, and was obtained by a method similar to the method described in JISB0621-1984. That is, as shown in FIG.
- the outer surface 13 (measurement surface 50 Assuming a plane parallel to the reference plane P (virtual plane) that encompasses all points on the top, the distance from the reference plane P to the virtual plane P1 with the minimum distance from the reference plane P is the maximum.
- the difference d from the virtual plane P2 was defined as “the flatness of the outer wall of the No. 2 cam unit”.
- the outer edge of the hard cue opening side may be the R or C plane, and may be chamfered, and the virtual plane passing through the end point is unclear. It is easy to become.
- the virtual plane was assumed for the range from the opening unit force of the honeycomb unit in the longitudinal direction to the position Q force 3 mm inward and to the isolator Q on the opposite opening side.
- the position should be set so that it is not affected by the R, C, or chamfer.
- the two outer surfaces 13 of the honeycomb unit facing each other are “warped and bent” uniformly in one direction.
- the shape is not limited to this.
- the Hercam unit has a shape in which the two outer surfaces 13 facing each other are along opposite sides, that is, a shape in which both are convexly warped outward as shown in FIG. 2B, or as shown in FIG. 2C.
- both sides of the honeycomb unit may be bent in any shape (irregular shape).
- “the flatness of the outer wall of the her cam unit” is the flatness of each measurement surface 50 of the her cam unit (in the case of a rectangular parallelepiped honeycomb unit, the four surfaces are Means the largest one.
- the flatness of the outer wall of the her cam unit (hereinafter simply referred to as flatness) is less than 0.1 mm, sufficient bonding strength cannot be obtained, and the her cam unit is likely to move. .
- the flatness exceeds 1.5 mm, the thickness of the sealing material layer for joining the her cam units increases, and the aperture ratio of the her cam structure decreases, making it impractical. Accordingly, the flatness of the outer wall of the her cam unit is preferably 0.1 mm to 1.5 mm.
- the her cam structure of the present invention includes a coating material layer that covers the outer peripheral surface of the two or more her cam units joined by the sealing material layer, with the through hole being open. It's okay. If it carries out like this, an outer peripheral surface can be protected and intensity
- the shape of the nose-cam structure to which the her-cam unit is joined is not particularly limited, but may be of any shape and size, for example, a cylindrical shape, a prismatic shape, It may be in the shape of an elliptic cylinder.
- the strength of the her cam unit can be improved.
- the aspect ratio of the inorganic fiber and the Z or Wis force is 2 to: LOOO is preferably 5 to 800, and more preferably 10 to 500. If the aspect ratio of inorganic fiber and Z or Wies force is less than 2, it may contribute to improving the strength of the hard cam structure. S exceeding 1000 may cause clogging of the mold during molding. It may become easier and the moldability may be deteriorated, and the inorganic fiber and Z or whisker force may be bent during molding such as extrusion molding, resulting in a variation in the length of the knives-cam structure. May be.
- the average value may be used.
- the ceramic particles contained in the her cam unit are not particularly limited.
- one or more selected from zeolite and alumina is preferred.
- the inorganic fiber and Z or whisker included in the her cam unit are not particularly limited, but alumina, silica, silicon carbide, One or more of which silica alumina, aluminum borate, glass and potassium titanate are also selected.
- the amount of ceramic particles contained in the Hercam structure is preferably 30 to 97% by weight.
- the ceramic particle content is less than 30% by weight, the amount of the ceramic particles that contribute to the improvement of the specific surface area is relatively small, so the specific surface area as the Hercam structure is small and the catalyst is loaded when the catalyst component is supported. The components cannot be highly dispersed, and if it exceeds 90% by weight, the amount of inorganic fibers that contribute to the strength improvement is relatively reduced, and the strength of the hard cam structure is lowered.
- the amount of inorganic fiber and Z or whisking force contained in the her cam unit of the her cam structure is preferably 3 to 70% by weight, more preferably 3 to 50% by weight, and 5 to 40%. 8 to 30% by weight is most preferred. If the content of inorganic fiber and / or whistle force is less than 3% by weight, the strength of the Hercam structure is lowered, and if it exceeds 50% by weight, the amount of ceramic particles contributing to the improvement of the specific surface area becomes relatively small. As a result, the specific area of the Hercam structure is small, and the catalyst component cannot be highly dispersed when the catalyst component is supported.
- the her cam unit may be manufactured by further including an inorganic binder.
- an inorganic binder contained in the hard cam structure is not particularly limited, and examples thereof include an inorganic sol clay binder.
- the inorganic sol for example, one or more kinds selected from force such as alumina sol, silica sol, titer sol and water glass can be mentioned.
- the clay-based binder include one or more selected from power such as clay, kaolin, montmorillonite, and double chain structure type clay (sepiolite, attapulgite).
- the amount of inorganic nonder contained in the raw material of the Hercum structure is preferably 50 to 50% by weight as the solid content in the Hercum structure. 5 to 50% by weight Power is favorably 10 to 40% 15 to 35% by weight is most preferred. If the content of the organic binder exceeds 50% by weight, the moldability deteriorates.
- the shape of the two-cam unit is not particularly limited, but the cross-section of the surface orthogonal to the through-hole (simply that it is preferable that the her-cam unit be easily joined together) Cross section. same as below. ) May be square, rectangular, hexagonal or fan-shaped.
- FIG. 1A shows a conceptual diagram of a rectangular parallelepiped her cam unit 11 having a square cross section.
- the her cam unit 11 has a large number of through holes 12 from the front side toward the back side, and has an outer surface 13 that does not have the through holes 12.
- the wall thickness between the through holes 12 is not particularly limited, but a range of 0.05 to 0.35 mm is preferable, and a range of 0.1 to 30 mm is more preferable 0.15. Most preferred is 0.25 mm. If the wall thickness is less than 0.05 mm, the strength of the hammer unit is reduced. If the wall thickness exceeds 0.35 mm, the contact area with the exhaust gas becomes small and the gas does not penetrate deeply enough. This is because it becomes difficult for the supported catalyst and gas to come into contact with each other, resulting in a decrease in catalyst performance.
- the number of through-holes per unit cross-sectional area is 15.5 to 186 Zcm 2 (100 to 1200 cpsi) force, 46.5 to 170.5 Zcm 2 (300 to: L lOOcpsi) force 62.0 to 155 Zcm 2 (400 to 1000 cps i) is most preferable. If the number of through-holes is less than 15.5 Zcm 2 , the area force of the wall in contact with the exhaust gas inside the hard cam unit will be reduced, and if it exceeds 186 Zcm 2 , the pressure loss will increase, This is because it is difficult to manufacture a two-cam unit.
- the shape of the through hole formed in the her cam unit is not particularly limited, but the cross section may be a substantially triangular shape or a substantially hexagonal shape.
- extrusion molding or the like is performed using a raw material paste mainly composed of the above-described ceramic particles, inorganic fibers and Z or whisker force, and an inorganic binder, thereby producing a honeycomb unit molded body.
- the raw material paste is molded with an organic binder, dispersion medium and molding aid. You may customize it according to the nature.
- the organic binder is not particularly limited, and examples thereof include one or more selected from methyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, polyethylene glycol, phenol resin and epoxy resin.
- the blending amount of the organic binder is preferably 1 to: L0 parts by weight with respect to 100 parts by weight of the total of ceramic particles, inorganic fibers and Z or whistle force, and inorganic binder.
- the dispersion medium is not particularly limited, and examples thereof include water, organic solvents (such as benzene) and alcohols (such as methanol).
- the molding aid is not particularly limited, and examples thereof include ethylene glycol, dextrin, fatty acid, fatty arsenic acid, and polyalcohol.
- the raw material paste is not particularly limited. For example, it is preferable to mix and knead.
- the raw material paste may be sufficiently kneaded using an mixer or an adder that may be mixed using an attritor. Good.
- the method of molding the raw material paste is not particularly limited, but for example, it is preferable to mold the raw material paste into a shape having a through hole by extrusion molding or the like.
- a jig for example, a flat plate shape
- ceramic, metal, or resin having a predetermined surface flatness this is pressed against the outer wall of the no cam unit.
- the flatness of the her cam unit can be set to a predetermined flatness.
- a no-cam unit having a predetermined flatness may be selected to form a her cam structure.
- the obtained molded body is preferably dried.
- the dryer used for drying is not particularly limited, and examples thereof include a microwave dryer, a hot air dryer, a dielectric dryer, a vacuum dryer, a vacuum dryer, and a freeze dryer.
- the degreasing conditions are not particularly limited and are appropriately selected depending on the type and amount of organic matter contained in the molded body, but are preferably approximately 400 ° C. and 2 hours.
- the obtained molded body is preferably fired.
- the condition for firing ⁇ force 600 to 1200 o C force S preferably such are not particularly limited, preferably from 600 to 1000 o C force S ⁇ .
- the firing temperature is less than 600 ° C, the sintering of the ceramic particles does not proceed and the strength of the no-cam structure is lowered, and if it exceeds 1200 ° C, the sintering of the ceramic particles proceeds. Too much specific surface area per unit volume will be reduced, and the catalyst components to be supported must be sufficiently dispersed. It is because it becomes impossible. Through these steps, a hard cut having a plurality of through holes can be obtained.
- a sealing material paste to be a sealing material layer is applied to the obtained honeycomb unit to sequentially join the honeycomb unit, and then dried and fixed to join the honeycomb unit of a predetermined size.
- the sealing material is not particularly limited 1S
- a mixture of inorganic binder and ceramic particles, a mixture of inorganic binder and inorganic fibers, or a mixture of inorganic binder, ceramic particles and inorganic fibers Etc. can be used.
- the organic binder is not particularly limited, and examples thereof include one or more selected from polyvinyl alcohol, methyl cellulose, ethyl cellulose, carboxymethyl cellulose, and the like.
- the thickness of the sealing material layer to which the her cam unit is joined is preferably 0.5 to 2 mm. This is because if the thickness of the sealant layer is less than 0.5 mm, sufficient bonding strength may not be obtained. In addition, since the sealing material layer is a part that does not function as a catalyst carrier, if the thickness exceeds 2 mm, the specific surface area per unit volume of the her-cam structure decreases, so that it is sufficiently high when the catalyst component is carried. It cannot be dispersed. If the thickness of the sealing material layer exceeds 2 mm, the pressure loss may increase. It should be noted that the number of her-cam units to be joined may be appropriately determined according to the size of the her-cam structure used as the her-cam catalyst. In addition, the joined body in which the her cam unit is joined by the sealing material may be appropriately cut and polished according to the shape and size of the her cam structure.
- the coating material layer may be formed by applying a coating material to the outer peripheral surface (side surface), drying, and fixing. In this way, the outer peripheral surface can be protected and the strength can be increased.
- the coating material is not particularly limited, and it may be made of the same material as the seal material or may have a different material strength. Further, the coating material may have the same mixing ratio as the sealing material or a different mixing ratio.
- the thickness of the coating material layer is not particularly limited, but is preferably 0.1-2 mm. If the thickness is less than 1 mm, the outer peripheral surface may not be fully protected and the strength may not be increased. If the thickness exceeds 2 mm, the specific surface per unit volume as a her cam structure When the catalyst component is loaded, the product will not be sufficiently dispersed.
- FIG. 1B shows a conceptual diagram of the her cam structure 10 in which a plurality of square cams 11 having a square cross section are joined and the outer shape is cylindrical.
- the her cam unit 11 is joined by the seal material layer 14 and cut into a cylindrical shape, and then the through hole 12 of the her cam structure 10 is not opened by the coating material layer 16.
- the outer peripheral surface is covered.
- the honeycomb unit 11 is formed into a fan-shaped cross section or a square cross section, and these are joined to form a predetermined honeycomb structure (columnar in FIG. IB) and cut. 'The polishing step may be omitted.
- the use of the obtained two-cam structure is not particularly limited, but it is preferably used as a catalyst carrier for exhaust gas purification of vehicles. Also, when used as a catalyst carrier for exhaust gas purification of diesel engines, it has a ceramic hard structure such as silicon carbide, and has the function of filtering particulate matter (PM) in exhaust gas and purifying combustion. ⁇ Force that may be used in combination with particulate filter (DPF) At this time, the position of the heart cam structure of the present invention and the DPF may be the front side or the rear side of the heart cam structure of the present invention.
- a catalyst component may be supported on the obtained her cam structure to form a her cam catalyst!
- the catalyst component is not particularly limited, and may be a noble metal, an alkali metal, an alkaline earth metal, an oxide or the like.
- the noble metal for example, one or more kinds selected from platinum, noradium, and oral dynamism can be mentioned
- the alkali metal for example, one or more kinds selected from forces such as potassium and sodium can be mentioned
- alkaline earth metal examples include oxides made of norium and the like, and oxides such as perovskite (La K Mn
- the obtained no- and two-cam catalysts are particularly limited.
- the loading of the catalyst component is not particularly limited, but it may be carried after the Hercam structure is produced, or may be carried at the stage of the raw material ceramic particles.
- the catalyst component loading method is not particularly limited. For example, the impregnation method may be used.
- honeycomb structures are specifically manufactured under various conditions
- present invention is not limited to these experimental examples.
- ⁇ Alumina particles (average particle size 2 ⁇ m) 40% by weight, silica-alumina fiber (average fiber diameter 10 ⁇ m, average fiber length 100 ⁇ m, aspect ratio 10) 10% by weight, silica sol (solid concentration 30 50% by weight) and 100 parts by weight of the resulting mixture, 6 parts by weight of methylcellulose as an organic binder, a small amount of plasticizer and lubricant are mixed and further mixed and kneaded to obtain a mixed composition. Obtained. Next, this mixed composition was subjected to extrusion molding with an extruder to obtain a raw molded body.
- the green molded body was sufficiently dried using a microwave dryer and a hot air dryer, and degreased by holding at 400 ° C for 2 hours. After that, firing was performed at 800 ° C for 2 hr, prismatic (34.3 mm x 34.3 mm x 150 mm), cell density of 93 cells Zcm 2 (600 cpsi), wall thickness of 0.2 mm, cell shape of square (Square) Hercam Unit 11 was obtained.
- Fig. 3 shows an electron microscope (SEM) photograph of the wall surface of this hermute 11. This Hercom unit 11 The fact that the silica-alumina fibers are oriented along the extrusion direction of the raw material paste
- FIG. 4A shows a joined body in which a plurality of two-cam units 11 are joined as viewed from a surface having a through-hole (referred to as a front surface, the same applies hereinafter).
- This joined body is obtained by applying the sealing material paste to the outer surface 13 of the above-mentioned nozzle-cam unit 11 so that the thickness of the sealing material layer 14 becomes 1 mm, and fixing and fixing a plurality of the hard cam units 11. is there.
- a joined body is prepared, and the joined body is cut into a cylindrical shape using a diamond cutter so that the front surface of the joined body is substantially point-symmetric, and the sealing material described above is formed on a circular outer surface having no through hole.
- the paste was applied to a thickness of 0.5 mm to coat the outer surface.
- the ceramic particle component, unit shape, unit cross-sectional area, and unit area ratio of the her-cam structure 10 (the ratio of the total cross-sectional area of the her-cam unit to the cross-sectional area of the her-cam structure.
- the ratio of the area of the seal material layer (the ratio of the total cross-sectional area of the sealing material layer and coating material layer to the cross-sectional area of the two-cam structure; the same shall apply hereinafter) Is shown in Table 1.
- Experimental example 1 Alumina 3.43 cm square 1 1.8 93.5 6.5
- Experimental example 2 Alumina 2.00 cm square 4.0 89.7 10.3
- Experimental example 3 Alumina 2.24 cm square 5.0 90.2 9.8
- Experimental example 4 Alumina 7.09 cm fan 39.5 96.9 3.1
- Experimental example 5 Alumina 7.10 cm square 50.0 95.5
- Experimental example 6 Alumina 7.41 cm square 55.0 95.6 4.4
- Experimental example 7 Alumina monolith 162.0 100.0 0
- Experimental example 8 Titania 3.43 cm square 1 1.8 93.5 6.5
- Experimental example 9 Titania 2.00 cm square 4.0 89.7 10.3
- Experimental example 10 Titania 2.24 cm square 5.0 90.2 9.8
- Experimental example 1 1 Titania 7.09 cm fan 39.5 96.9 3.1
- Experimental example 12 Titania 7.10 cm square 50.0 95.5
- Experimental example 13 Titania 7.41 cm square 55.0 95.6
- Experimental example 14 Titania monolith 162.0 100.0 0
- Inorganic fiber silica-alumina fiber (diameter 10 im, length 100 / im, aspect ratio 10)) Including coating material layer area
- Table 1 also summarizes the contents related to Experimental Examples 2 to 29 described later.
- the inorganic fiber is silica-alumina fiber (average fiber diameter 10 m, average fiber length 100 / ⁇ ⁇ , aspect ratio 10), and the inorganic binder is silica sol (solid concentration 30). Weight%).
- Table 2 summarizes the numerical values such as inorganic fibers (type, diameter, length, aspect ratio), unit shape, and unit cross-sectional area of Experimental Examples 30 to 34 described later.
- the ceramic particles are ⁇ -alumina particles
- the inorganic binder is silica sol (solid concentration 30% by weight)
- the unit area ratio is 93.5%
- the sealant layer area ratio is 6 It is 5%.
- the inorganic binder type, unit cross-sectional area, seal material layer thickness, unit area ratio, seal material layer area ratio, and no-cam unit 11 of the Hercam structure 10 in Experimental Examples 44 to 51 described later 11 Table 3 summarizes the numerical values of the firing temperature of the steel.
- Inorganic fiber silica-alumina fiber (diameter 10 / m, length 100mm, aspect ratio 10)
- the ceramic particles are ⁇ - alumina particles (average particle size 2 ⁇ m)
- the inorganic fibers are silica-alumina fibers (average fiber diameter 10 / ⁇ ⁇ , average fiber length 100 m, aspect ratio Ratio 10).
- a honeycomb structure 10 was manufactured in the same manner as in Experimental Example 1 except that the honeycomb unit was manufactured to have the shape shown in Table 1.
- the shapes of the joined bodies of Experimental Examples 2, 3, and 4 are shown in FIGS. 4B, C, and D, respectively, and the shapes of the joined bodies of Experimental Examples 5, 6, and 7 are shown in FIGS. 5A, B, and C, respectively.
- the joining step and the cutting step were not performed.
- a ceramic unit 11 was produced in the same manner as in Experimental Example 1 except that the ceramic particles were made into titanium particles (average particle size 2 ⁇ m) and the shape shown in Table 1 was used.
- a Hercam structure 10 was fabricated in the same manner as in Experimental Example 1, except that the ceramic particles in the coating material layer were made to be titanium particles (average particle size 2 ⁇ m).
- the shapes of the joined bodies in Experimental Examples 8 to 11 are 4A to D, and the shapes of the joined bodies of Experimental Examples 12 to 14 are the same as those of FIGS. 5A to 5C, respectively.
- Experimental example 14 is a case in which the her cam structure 10 is integrally molded.
- the honeycomb unit 11 was prepared in the same manner as in Experimental Example 1 except that the ceramic particles were silica particles (average particle size 2 ⁇ m), and the honeycomb unit was prepared to have the shape shown in Table 1.
- a Hercam structure 10 was prepared in the same manner as in Experimental Example 1 except that the ceramic particles of the V and the sealing material layer and the coating material layer were silica particles (average particle size 2 m).
- the shapes of the joined bodies in Experimental Examples 15 to 18 are the same as those in FIGS. 4A to D, respectively, and the shapes of the joined bodies in Experimental Examples 19 to 21 are the same as those in FIGS.
- the two-cam structure 10 is integrally molded.
- a Hercam unit 11 was fabricated in the same manner as in Experimental Example 1, except that the ceramic particles were made of zirco-yu particles (average particle size 2 ⁇ m) and the Her cam unit was fabricated to have the shape shown in Table 1.
- a Hercam structure 10 was produced in the same manner as in Experimental Example 1 except that the ceramic particles of the sealing material layer and the coating material layer were changed to zirconia particles (average particle size 2 m).
- the shapes of the joined bodies in Experimental Examples 22 to 25 are the same as those in FIGS. 4A to D, respectively, and the joined bodies in Experimental Examples 26 to 28 are the same as those in FIGS.
- the honeycomb structure 10 is integrally molded.
- Experimental Example 29 was a commercially available columnar (diameter 143.8 mm x length 150 mm) cordierite hard cam structure 10 in which alumina as a catalyst support layer was formed inside the through hole.
- the cell shape was hexagonal, the cell density was 62 Zcm 2 (400 cpsi), and the wall thickness was 0.18 mm.
- the shape of the Hercam structure viewed from the front is the same as that of FIG. 5C.
- a Hermute 11 was prepared in the same manner as in Experimental Example 1 except that silica-alumina fiber having the shape shown in Table 2 was used as the inorganic fiber, followed by the sealing material layer and the coating material layer.
- a Hercam structure 10 was prepared in the same manner as in Experimental Example 1 except that the liquor alumina fiber was the same silica alumina fiber as the No-Cam unit.
- the shapes of the joined bodies in Experimental Examples 30 to 34 are the same as those in FIG. 4A.
- the hard cam structure 10 was produced in the same manner as in Experimental Example 1, except that the cross-sectional area of the her cam unit and the thickness of the seal material layer to which the cam cam unit was joined were changed. did.
- the shapes of the joined bodies in Experimental Examples 44 to 45 are the same as those in FIG. 4A, and the joined bodies in Experimental Examples 46 to 47 are the same as those in FIG. 4C.
- a hard cam structure 10 was fabricated in the same manner as in Experimental Example 1, except that the inorganic binder was alumina sol (solid concentration 30 wt%).
- a hard cam unit 10 was manufactured in the same manner as in Experimental Example 1 except that sepiolite and attapulgite were used as the inorganic binder. Specifically, ⁇ -alumina particles (average particle size 2 ⁇ m) 40% by weight, silica-alumina fiber (average fiber diameter 10 ⁇ m, average fiber length 100 ⁇ m, aspect ratio 10) 10% by weight, inorganic binder 15% by weight and 35% by weight of water were mixed, and in the same manner as in Experimental Example 1, an organic binder, a plasticizer and a lubricant were added, followed by molding and firing to obtain a Hercam unit 11.
- ⁇ -alumina particles average particle size 2 ⁇ m
- silica-alumina fiber average fiber diameter 10 ⁇ m, average fiber length 100 ⁇ m, aspect ratio 10 10% by weight
- inorganic binder 15% by weight and 35% by weight of water were mixed, and in the same manner as in Experimental Example 1, an organic binder, a plasticizer and a lubricant were added, followed by molding and firing
- a her-cam unit was manufactured in the same manner as in Experimental Example 1 except that an inorganic binder was not mixed, and a no-cam structure 10 was manufactured. Specifically, ⁇ -alumina particles (average particle size 2 m, 50% by weight), silica-alumina fiber (average fiber diameter 10 m, average fiber length 100 m, aspect ratio 10) 15% by weight and water 35% by weight Then, an organic binder, a plasticizer and a lubricant were added in the same manner as in Experimental Example 1, and the molded body was fired at 1000 ° C. to obtain a Hercam unit 11.
- a probe contact type three-dimensional measuring machine (FALCI0916 manufactured by Mitutoyo) was used for measuring the flatness of the outer wall of the her cam unit.
- the HerCam unit is installed on the measuring table so that the opening force of the HerCam unit is substantially perpendicular to the X axis (see Fig. 2A).
- a reference plane as a reference is determined.
- the reference plane is determined as a plane including at least three points out of the four corners of the outer surface 13 (hereinafter referred to as measurement surface 50) of the two-cam unit exposed at the top in this installed state.
- measurement surface 50 the Z direction
- the specific surface area of each of the experimental units 1 to 51 and the experimental examples 1 A to 1 D of the hard cam unit 11 was measured. First Nono - actually measuring the volume of the cam unit 11 and the sealing material, ha - was calculated Percentage material unit to the volume of the cam structure A (volume 0/0). Next, the BET specific surface area B (m 2 / g) per unit weight of the Hermute 11 was measured. The BET specific surface area was measured by a one-point method using a BET measuring device (Micromeritics Flow Soap II 2300 manufactured by Shimadzu Corporation) according to JIS-R-1626 (1996) defined by Japanese Industrial Standards.
- a BET measuring device Micromeritics Flow Soap II 2300 manufactured by Shimadzu Corporation
- the specific surface area of the her-cam structure means the specific surface area per apparent volume of the her-cam structure.
- Experimental example 1 to 51 and Experimental example 1 Thermal shock and vibration repetition of the hard cam structures of A to 1 D
- the test was conducted.
- an alumina mat (Maftec made by Mitsubishi Chemical Co., Ltd., 46.5cm x 15cm, thickness 6mm) is wound around the outer surface of the hard cam structure and placed in a metal casing 21. Then, it was put into a firing furnace set at 600 ° C and heated for 10 minutes, and the firing furnace was taken out and rapidly cooled to room temperature.
- a vibration test was performed with the her cam structure placed in the metal casing.
- FIG. 6A shows a front view of the vibration device 20 used in the vibration test
- FIG. 6B shows a side view of the vibration device 20.
- the metal casing 21 containing the honeycomb structure was placed on the pedestal 22, and the metal casing 21 was fixed by tightening the substantially U-shaped fixture 23 with the screw 24. Then, the metal casing 21 can vibrate while being integrated with the base 22 and the fixture 23.
- the vibration test was performed under the conditions of a frequency of 160 Hz, an acceleration of 30 G, an amplitude of 0.5 8 mm, a holding time of 10 hours, a room temperature, and a vibration direction Z-axis direction (up and down). This thermal shock test and vibration test were alternately repeated 10 times, and the weight TO of the honeycomb structure before the test and the weight Ti after the test were measured, and the weight reduction rate G was calculated using the following equation (2). Asked.
- the pressure loss of Experimental Example 1 to 51 and Experimental Example 1 A to 1 D Hercam structure was measured.
- a pressure loss measuring device 40 is shown in FIG.
- the measurement method consisted of placing a no-cam structure with alumina mat wound around the exhaust pipe of a 2L common rail diesel engine in a metal casing and attaching pressure gauges to the front and back of the honeycomb structure.
- the measurement conditions were set at an engine speed of 1500 rpm and a torque of 50 Nm, and the differential pressure was measured 5 minutes after the start of operation.
- Experiments 1 to 3, 5, 6 and Experiments 1 A to 1 D of Hercam structures were subjected to a punching test.
- the push-out test was performed according to the following procedure. First, the honeycomb structure was fixed to a hollow cylindrical jig. Next, a single her cam unit near the center of the honeycomb structure was selected, and the her cam unit was pushed out with an aluminum cylindrical jig, and the load when the her cam unit was pushed out was measured.
- the pressurization speed was ImmZmin, and an Instron universal testing machine (type 5582) was used for the test.
- Example 1 to 29 and Example 44 to 47 ceramic particle components, unit cross-sectional area, unit area ratio, specific surface area of the Hercam unit, specific surface area S of the Hercam structure, thermal shock Table 5 summarizes the weight loss rate G, pressure loss, and punching strength values.
- the horizontal axis is the cross-sectional area of the her cam unit, and the weight reduction rate G and pressure in the thermal shock vibration test A plot of loss on the vertical axis is shown in Fig. 8, and a plot of the unit area ratio on the horizontal axis and weight loss rate G and pressure loss in the thermal shock / vibration repetition test on the vertical axis is shown in Fig. 9.
- Inorganic fiber silica-alumina fiber (diameter 10 m, length 100 m, aspect ratio 10 )
- the cross-sectional area of the hard cam unit 11 is in a range of 50 cm 2 or less, and the unit area ratio is 85% or more, -The specific surface area per unit volume of the cam structure can be increased, sufficient strength against thermal shock and vibration can be obtained, and the pressure loss is reduced. In particular, the drop in pressure loss was significant when the unit area ratio was 90% or more.
- Table 4 shows the results of the weight loss rate G, pressure loss, and punching strength in the thermal shock 'vibration repetition test of A to ID D. From this result, the punching strength is high when the unit cross-sectional area is 50 cm 2 or less, the unit area ratio is 85% or more, and the flatness of the outer wall of the her cam unit is 0.1 mm to 1.5 mm. (2.5 MPa or more).
- the present invention can be used for a catalyst carrier for exhaust gas purification of a vehicle, an adsorbent for adsorbing a gas component or a liquid component, and the like.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800004815A CN101023044B (zh) | 2005-06-24 | 2005-06-24 | 蜂窝结构体 |
JP2007522176A JPWO2006137157A1 (ja) | 2005-06-24 | 2005-06-24 | ハニカム構造体 |
PCT/JP2005/011658 WO2006137157A1 (ja) | 2005-06-24 | 2005-06-24 | ハニカム構造体 |
EP05028675A EP1738813A1 (en) | 2005-06-24 | 2005-12-29 | Honeycomb structure |
US11/321,880 US7879428B2 (en) | 2005-06-24 | 2005-12-30 | Honeycomb structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2005/011658 WO2006137157A1 (ja) | 2005-06-24 | 2005-06-24 | ハニカム構造体 |
Publications (1)
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WO2006137157A1 true WO2006137157A1 (ja) | 2006-12-28 |
Family
ID=36072158
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/011658 WO2006137157A1 (ja) | 2005-06-24 | 2005-06-24 | ハニカム構造体 |
Country Status (5)
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US (1) | US7879428B2 (ja) |
EP (1) | EP1738813A1 (ja) |
JP (1) | JPWO2006137157A1 (ja) |
CN (1) | CN101023044B (ja) |
WO (1) | WO2006137157A1 (ja) |
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- 2005-06-24 JP JP2007522176A patent/JPWO2006137157A1/ja active Pending
- 2005-06-24 WO PCT/JP2005/011658 patent/WO2006137157A1/ja active Application Filing
- 2005-12-29 EP EP05028675A patent/EP1738813A1/en not_active Withdrawn
- 2005-12-30 US US11/321,880 patent/US7879428B2/en not_active Expired - Fee Related
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JPH05213681A (ja) * | 1992-01-31 | 1993-08-24 | Kawata Mfg Co Ltd | ハニカム状繊維強化セラミック体およびその製造方法 |
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US7846526B2 (en) | 2004-12-27 | 2010-12-07 | Ibiden Co., Ltd | Honeycomb structural body and sealing material layer |
WO2009141888A1 (ja) * | 2008-05-20 | 2009-11-26 | イビデン株式会社 | ハニカム構造体 |
WO2009141887A1 (ja) * | 2008-05-20 | 2009-11-26 | イビデン株式会社 | ハニカム構造体 |
KR101037567B1 (ko) | 2008-05-20 | 2011-05-27 | 이비덴 가부시키가이샤 | 허니컴 구조체 |
CN101678351B (zh) * | 2008-05-20 | 2012-07-04 | 揖斐电株式会社 | 蜂窝结构体 |
JP5379678B2 (ja) * | 2008-05-20 | 2013-12-25 | イビデン株式会社 | ハニカム構造体 |
JP2014529526A (ja) * | 2011-08-26 | 2014-11-13 | ダウ グローバル テクノロジーズ エルエルシー | セラミック体を作製する改良された方法 |
KR101926698B1 (ko) | 2011-08-26 | 2018-12-07 | 다우 글로벌 테크놀로지스 엘엘씨 | 세라믹 보디 제조 방법 |
JP2015508376A (ja) * | 2011-12-15 | 2015-03-19 | ダウ グローバル テクノロジーズ エルエルシー | 水膨潤性粘土ベースのセメント及び被膜材料、並びにセグメント化又は被膜されたセラミックハニカム構造体の製造方法 |
JP2016172212A (ja) * | 2015-03-16 | 2016-09-29 | 日本碍子株式会社 | ハニカム構造体 |
JP2016172653A (ja) * | 2015-03-16 | 2016-09-29 | 日本碍子株式会社 | ハニカム構造体 |
Also Published As
Publication number | Publication date |
---|---|
US20060292334A1 (en) | 2006-12-28 |
CN101023044B (zh) | 2010-04-21 |
EP1738813A1 (en) | 2007-01-03 |
JPWO2006137157A1 (ja) | 2009-01-08 |
CN101023044A (zh) | 2007-08-22 |
US7879428B2 (en) | 2011-02-01 |
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