发明名称 |
Catalytic filter based on silicon carbide (beta-SiC) for combustion of soot derived from exhaust gases from an internal combustion engine |
摘要 |
This invention relates to beta-SiC foam parts with a specific surface area preferably equal to at least 5 m<SUP>2</SUP>/g and with at least two zones A and B with a different cellular porosity distribution, wherein the parts were made by chemical transformation of a porous precursor medium comprising at least two blocks A' and B', each having a different cellular porosity distribution, and in that the at least two zones A and B are derived from the chemical transformation of the two blocks A' and B'. This foam, optionally after deposition of an active layer, may be used as a filter medium in cartridges designed for the purification of exhaust gases. The invention also relates to manufacturing processes for preparing such a filter medium.
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申请公布号 |
US2005159292(A1) |
申请公布日期 |
2005.07.21 |
申请号 |
US20040963604 |
申请日期 |
2004.10.14 |
申请人 |
UNIVERSITE LOUIS PASTEUR DE STRASBOURG |
发明人 |
PHAM CHARLOTTE;PESANT LAURIE;BERNHARDT PIERRE;WOLF MICHEL;PHAM-HUU CUONG;LEDOUX MARC-JACQUES;KARTHEUSER MICHEL;VANHAECKE ESTELLE |
分类号 |
B01D53/94;B01J23/40;B01J27/224;C04B38/00;F01N3/022;(IPC1-7):C04B38/00 |
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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