发明名称 |
Porous material and production process thereof, catalyst comprising the porous material and process for purifying exhaust gas |
摘要 |
<p>Disclosed are a porous material comprising particles without substantial fibrous structure and having pores, the pores having a mean pore diameter in a meso-pore region, sharp pore size distribution, and at least a part of the pores being connected three-dimensionally to form a three-dimensional network structure with random passages, the porous material preferably being of alumina and having a spongy structure or the porous material preferably being an aggregate of particles having an aspect ratio of 3 or less; a process of producing the porous material which includes a step of aging a system capable of becoming an oxide on thermal decomposition; a catalyst for exhaust gas purification having excellent NOx removal performance, high resistance against sulfur poisoning, and satisfactory high-temperature durability which comprises the porous material as a carrier having supported thereon a noble metal and an NOx storage component; and a method of exhaust gas purification using the catalyst. <IMAGE></p> |
申请公布号 |
EP1020223(A2) |
申请公布日期 |
2000.07.19 |
申请号 |
EP20000100596 |
申请日期 |
2000.01.12 |
申请人 |
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO |
发明人 |
HATANAKA, MIHO;SUDA, AKIHIKO;TANAKA, TOSHIYUKI;TAKAHASHI, NAOKI;YAMAMOTO, TOSHIO;AKIMOTO, YUSUKE;TERAO, NAOHIRO |
分类号 |
B01D53/04;B01D53/94;B01J35/04;B01J35/10;B01J37/08;(IPC1-7):B01J35/10 |
主分类号 |
B01D53/04 |
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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