JP5095538B2 - 排ガス浄化用酸化触媒装置 - Google Patents
排ガス浄化用酸化触媒装置 Download PDFInfo
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- JP5095538B2 JP5095538B2 JP2008184106A JP2008184106A JP5095538B2 JP 5095538 B2 JP5095538 B2 JP 5095538B2 JP 2008184106 A JP2008184106 A JP 2008184106A JP 2008184106 A JP2008184106 A JP 2008184106A JP 5095538 B2 JP5095538 B2 JP 5095538B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- oxidation catalyst
- cell
- catalyst layer
- gas purification
- 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.)
- Expired - Fee Related
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- 239000003054 catalyst Substances 0.000 title claims description 155
- 230000003647 oxidation Effects 0.000 title claims description 70
- 238000007254 oxidation reaction Methods 0.000 title claims description 70
- 238000000746 purification Methods 0.000 title claims description 58
- 239000011148 porous material Substances 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 27
- 238000005192 partition Methods 0.000 claims description 26
- 229910044991 metal oxide Inorganic materials 0.000 claims description 25
- 150000004706 metal oxides Chemical class 0.000 claims description 25
- 239000002131 composite material Substances 0.000 claims description 24
- 238000002485 combustion reaction Methods 0.000 claims description 20
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 16
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 16
- 239000000126 substance Substances 0.000 claims description 10
- 229910009580 YMnO Inorganic materials 0.000 claims description 8
- 238000000638 solvent extraction Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 118
- 239000000203 mixture Substances 0.000 description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 239000002002 slurry Substances 0.000 description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000010304 firing Methods 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 239000012018 catalyst precursor Substances 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 3
- 229910052753 mercury Inorganic materials 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052727 yttrium Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- YMKHJSXMVZVZNU-UHFFFAOYSA-N manganese(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O YMKHJSXMVZVZNU-UHFFFAOYSA-N 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 229910002076 stabilized zirconia Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- PDTGVTZFEAGHFZ-UHFFFAOYSA-N yttrium(3+);trinitrate;pentahydrate Chemical compound O.O.O.O.O.[Y+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PDTGVTZFEAGHFZ-UHFFFAOYSA-N 0.000 description 2
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Description
〔比較例〕
本比較例では、触媒層3a,3bを全く形成しなかった以外は、前記実施例と全く同一にして、排ガス浄化用酸化触媒装置を製造した。
Claims (4)
- 一方の端部を排ガス流入部とし、他方の端部を排ガス流出部とするウォールフロー構造を有する多孔質フィルタ基材と、該多孔質フィルタ基材に担持された触媒とを備え、
該多孔質フィルタ基材は、軸方向に貫通して形成された複数の貫通孔のうち、排ガス流入部が開放されるとともに排ガス流出部が閉塞された複数の流入セルと、該複数の貫通孔の排ガス流入部が閉塞されるとともに排ガス流出部が開放された複数の流出セルと、該流入セル及び該流出セルを隔てるセル隔壁とを備え、
該触媒は、該セル隔壁の少なくとも該流入セル側の表面に担持された触媒層からなり、
該排ガス流入部から流入する内燃機関の排ガスを該セル隔壁を介して該流出セルに流通させる間に、該排ガス中のパティキュレートを前記触媒により酸化し、浄化された該排ガスを該排ガス流出部から流出せしめる排ガス浄化用酸化触媒装置において、
該触媒は、化学式YMnO3で表される複合金属酸化物またはY0.95Ag0.05MnO3で表される複合金属酸化物と、酸化ジルコニウムとの混合物の多孔質体からなることを特徴とする排ガス浄化用酸化触媒装置。 - 前記触媒層は、直径が0.01〜5.0μmの範囲の気孔を備える多孔質体からなり、前記多孔質フィルタ基材及び該触媒層全体の気孔率が、50〜65体積%の範囲であることを特徴とする請求項1記載の排ガス浄化用酸化触媒装置。
- 前記触媒層は、10〜20μmの範囲の厚さを備えることを特徴とする請求項1または請求項2記載の排ガス浄化用酸化触媒装置。
- 前記触媒層は、前記セル隔壁の前記流入セル側の表面のみに担持されていることを特徴とする請求項1乃至請求項3のいずれか1項記載の排ガス浄化用酸化触媒装置。
Priority Applications (1)
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JP2008184106A JP5095538B2 (ja) | 2008-07-15 | 2008-07-15 | 排ガス浄化用酸化触媒装置 |
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JP2008184106A JP5095538B2 (ja) | 2008-07-15 | 2008-07-15 | 排ガス浄化用酸化触媒装置 |
Publications (2)
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JP2010022893A JP2010022893A (ja) | 2010-02-04 |
JP5095538B2 true JP5095538B2 (ja) | 2012-12-12 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3865203A1 (en) | 2014-12-11 | 2021-08-18 | Mitsubishi Heavy Industries, Ltd. | Exhaust gas treatment device, gas turbine combined cycle power generation system, and exhaust gas treatment method |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5122021B2 (ja) * | 2010-03-16 | 2013-01-16 | 本田技研工業株式会社 | 金属空気電池 |
WO2012029743A1 (ja) * | 2010-08-31 | 2012-03-08 | 本田技研工業株式会社 | 金属酸素電池 |
WO2012093600A1 (ja) * | 2011-01-05 | 2012-07-12 | 本田技研工業株式会社 | 排気ガス浄化用触媒及び排気ガス浄化用触媒構成体 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4311918B2 (ja) * | 2002-07-09 | 2009-08-12 | ダイハツ工業株式会社 | ペロブスカイト型複合酸化物の製造方法 |
JP4426381B2 (ja) * | 2004-06-15 | 2010-03-03 | 日本碍子株式会社 | ハニカム構造体及びその製造方法 |
JP2007253144A (ja) * | 2005-07-21 | 2007-10-04 | Ibiden Co Ltd | ハニカム構造体及び排ガス浄化装置 |
JP2007144371A (ja) * | 2005-11-30 | 2007-06-14 | Toyota Motor Corp | 排ガス浄化用触媒及びその製造方法 |
JP2007252997A (ja) * | 2006-03-21 | 2007-10-04 | Toyota Central Res & Dev Lab Inc | フィルタ型排ガス浄化用触媒 |
JP4689574B2 (ja) * | 2006-10-20 | 2011-05-25 | 本田技研工業株式会社 | 排ガス浄化用酸化触媒 |
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- 2008-07-15 JP JP2008184106A patent/JP5095538B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3865203A1 (en) | 2014-12-11 | 2021-08-18 | Mitsubishi Heavy Industries, Ltd. | Exhaust gas treatment device, gas turbine combined cycle power generation system, and exhaust gas treatment method |
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JP2010022893A (ja) | 2010-02-04 |
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