发明名称 |
REGENERATING METHOD OF CATALYST FOR CLEANING EXHAUST GAS |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a regenerating method of a catalyst for cleaning an exhaust gas capable of regenerating a catalytic activity by re-dispersing a platinum particle grain-grown by being exposed to an exhaust gas of a high temperature for a long period of time to a fine platinum particle in a short time even at a relatively low temperature area. <P>SOLUTION: In the regenerating method of the catalyst for cleaning the exhaust gas, an oxidation treatment for heating in an oxidation atmosphere containing oxygen and a reduction treatment are applied to the catalyst for cleaning the exhaust gas provided with a carrier containing a composite oxide of zirconia and/or alumina and at least one element selected from the group consisting of an alkaline earth metal element, a rare earth element and a group 3A element; and platinum carried on the carrier. <P>COPYRIGHT: (C)2007,JPO&INPIT |
申请公布号 |
JP2007029768(A) |
申请公布日期 |
2007.02.08 |
申请号 |
JP20050212141 |
申请日期 |
2005.07.22 |
申请人 |
TOYOTA CENTRAL RES & DEV LAB INC;TOYOTA MOTOR CORP |
发明人 |
DOMAE KAZUHIKO;NAGAI YASUTAKA;TANABE TOSHITAKA;TAKAGI NOBUYUKI;HIRABAYASHI TAKESHI |
分类号 |
B01J23/96;B01D53/86;B01J38/10;B01J38/12;B01J38/14;F01N3/10;F01N3/20 |
主分类号 |
B01J23/96 |
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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