发明名称 |
PRODUCTION PROCESS OF OXIDATION CATALYST APPARATUS FOR PURIFYING EXHAUST GAS |
摘要 |
To provide a production process of an oxidation catalyst apparatus for purifying an exhaust gas which enables to oxidize and purify particulate matter in the exhaust gas of an internal combustion engine at a lower temperature. The production process of the oxidation catalyst apparatus 1 for purifying an exhaust gas comprises a step of burning a plurality of metal compounds to obtain a burnt product, a step of mixing and grinding the obtained burnt product with water and a binder which is a sol comprising zirconia to prepare a slurry, a step of applying the slurry to a porous filter base material 2, and a step of burning the porous filter base material 2 to form a porous catalyst layer 3 supported on the porous filter base material 2. The porous catalyst layer 3 has a thickness in a range of 10 to 150 mum and fine pores having a diameter in a range of 0.01 to 5 mum, the total porosity of and the porous filter base material 2 and the porous catalyst layer 3 have a porosity of 35 to 70% as a whole. The porous catalyst layer 3 is a composite metal oxide represented by general formula Y1-xAgxMn1-yRuyO3 wherein 0.01<=x<=0.15 and 0.005<=y<=0.2.
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申请公布号 |
US2009149319(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
US20080328608 |
申请日期 |
2008.12.04 |
申请人 |
TANAAMI KIYOSHI;ISOGAI YUJI |
发明人 |
TANAAMI KIYOSHI;ISOGAI YUJI |
分类号 |
B01J31/02;B01J23/00;B01J23/34;B01J27/224;B01J27/25;B01J31/04 |
主分类号 |
B01J31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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