发明名称 |
Monolith washcoat having optimum pore structure and optimum method of designing the washcoat |
摘要 |
An optimum washcoated ceramic monolith for treating automotive exhaust gases is made by (a) specifying the reactants, process conditions and desired time on stream; (b) determining from the parameters in step (a) the pore size distribution and thickness of the washcoat to produce the desired auto exhaust conversion; (c) preparing a washcoat catalyst with an alumina having the desired pore size distribution; and (d) applying the prepared washcoat catalyst to a ceramic or metal monolith to produce a finished automotive exhaust gas catalyst. Following this process the optimized washcoated catalyst can then be used to treat automotive exhaust gases.
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申请公布号 |
US4771029(A) |
申请公布日期 |
1988.09.13 |
申请号 |
US19870052103 |
申请日期 |
1987.05.18 |
申请人 |
W. R. GRACE & CO.-CONN |
发明人 |
PEREIRA, CARMO J.;KUBSH, JOSEPH E.;HEGEDUS, LOUIS |
分类号 |
B01D53/94;B01J21/04;B01J23/40;B01J35/10;B01J37/02;(IPC1-7):B01J21/04;B01J32/00 |
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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