| 摘要 |
An object of the present invention is to provide an oxidation catalyst (DOC) which, even after long-term use thereof, is suitable for combustion, at a relatively low temperature, of a light oil component supplied upon regeneration of a diesel particulate filter (DPF), and which exhibits excellent thermal resistance and excellent durability. The oxidation catalyst (DOC) of the present invention suitable for combustion of a light oil component contains an alumina porous body whose pore size distribution profile, as determined by means of a mercury porosimeter, has a peak falling within a range of 10 to 100 nm, and a noble metal supported on the surface of the alumina porous body and/or on the inner walls of pores of the alumina porous body. The oxidation catalyst (DOC) product of the present invention includes a catalyst support made of a ceramic or metallic material, and the aforementioned oxidation catalyst (DOC) supported on the catalyst support. |
