发明授权
US4771029A Monolith washcoat having optimum pore structure and optimum method of
designing the washcoat
失效
Monolith修补基面涂层具有最佳的孔结构和设计修补基面涂层的最佳方法
- 专利标题： Monolith washcoat having optimum pore structure and optimum method of designing the washcoat
- 专利标题（中）： Monolith修补基面涂层具有最佳的孔结构和设计修补基面涂层的最佳方法
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申请号： US52103申请日： 1987-05-18
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公开(公告)号： US4771029A公开(公告)日： 1988-09-13
- 发明人: Carmo J. Pereira , Joseph E. Kubsh , Louis Hegedus
- 申请人： Carmo J. Pereira , Joseph E. Kubsh , Louis Hegedus
- 申请人地址： NY New York
- 专利权人： W. R. Grace & Co.-Conn
- 当前专利权人： W. R. Grace & Co.-Conn
- 当前专利权人地址： NY New York
- 主分类号： B01D53/94
- IPC分类号： B01D53/94 ; B01J21/04 ; B01J23/40 ; B01J35/10 ; B01J37/02 ; B01J32/00
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.