Purification catalyst for internal combustion engine exhaust gas

发明授权

US06713429B1 Purification catalyst for internal combustion engine exhaust gas 有权

标题翻译：内燃机废气净化催化剂

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专利标题： Purification catalyst for internal combustion engine exhaust gas
专利标题（中）： 内燃机废气净化催化剂
申请号： US09461415

申请日： 1999-12-16
公开(公告)号： US06713429B1

公开(公告)日： 2004-03-30
发明人: Masakazu Tanaka , Yosiyasu Andou , Keiji Ito , Takahiro Kida
申请人： Masakazu Tanaka , Yosiyasu Andou , Keiji Ito , Takahiro Kida
优先权： JP10-362736 19981221
主分类号： B01J2104
IPC分类号： B01J2104

Purification catalyst for internal combustion engine exhaust gas

摘要：

A purification catalyst for exhaust gas is provided that uses a hexagonal cell monolithic carrier which is able to demonstrate purification performance that is superior to the case of using a square cell monolithic carrier. This purification catalyst for exhaust gas comprises a monolithic carrier (10) provided with hexagonal cells (15) of 200 cells/in2 or more in which the porosity of partition walls (11) that form the cells (15) is 25% or more; and, a catalyst layer (2) arranged on the surface of the partition walls (11) of the monolithic carrier (10) that contains a catalyst component for purification of exhaust gas. The thickness of catalyst layer (2) is 10-70 &mgr;m at its thin portion (21), and its thick portion (22) has a thickness of no more than 12 times that of thin portion (21).

摘要（中）：

提供了一种废气净化催化剂，其使用能够表现出优于使用方形电池单片载体的情况的纯化性能的六边形单元整体载体。这种废气净化催化剂包括一个整体式载体（10），该整体载体（10）具有200个/ in 2或更多的六边形单元（15），其中形成单元（15）的隔壁（11）的孔隙率为25％或者更多; 以及布置在整体式载体（10）的分隔壁（11）的表面上的催化剂层（2），其包含用于净化废气的催化剂组分。催化剂层（2）的厚度在其薄部分（21）为10-70μm，其厚部分（22）的厚度不超过薄部分（21）的厚度的12倍。

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