发明名称 |
Alumina, ceria, zirconia, nickel oxide, alkaline earth oxide, and noble metal catalyst, and method for preparing |
摘要 |
A catalyst for cleaning exhaust gas comprises a carrier and a coated layer applied onto the surface of the carrier which comprises an aluminum oxide, a cerium oxide, a zirconium oxide, a nickel oxide, an alkaline earth metal oxide and a noble metal catalytic component. The catalyst can be prepared according to a method which comprises the steps of coating the surface of a carrier with a slurry which comprises active alumina, a cerium compound, a zirconium compound and a nickel compound, drying the coated carrier and then calcining it to complete the carrier, then impregnating the carrier with a solution comprising a catalyst component of a noble metal, drying, then immersing it in a solution of an alkaline earth metal compound, drying the immersed carrier and then calcining the carrier. The catalyst for exhaust gas-cleanup is highly sensitive to HC and CO around the theoretical mixing ratio and within the rich-region and is excellent in durability.
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申请公布号 |
US5492878(A) |
申请公布日期 |
1996.02.20 |
申请号 |
US19950406357 |
申请日期 |
1995.03.17 |
申请人 |
MITSUI MINING & SMELTING CO., LTD. |
发明人 |
FUJII, JUN;SUZUKI, KAZUNORI;KIMURA, KAZUO |
分类号 |
B01D53/94;B01J23/89;B01J37/02;(IPC1-7):B01J23/58;B01J23/63;B01J35/04;B01J37/025 |
主分类号 |
B01D53/94 |
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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