Cataler Corporation

Mai Huong Tran

Norihiko Aono

Shu Miyasaka

Keigo Hori

Eriko Tanaka

Daisuke Sugioka

Yoshinori Yamashita

Daisuke Oki

Takuya Sato

This exhaust gas purifying catalyst is provided with a substrate and a catalyst layer formed on a surface of the substrate. The catalyst layer contains zeolite particles that support a metal, and a rare earth element-containing compound that contains a rare earth element. The rare earth element-containing compound is added in such an amount that the molar ratio of the rare earth element relative to Si contained in the zeolite is 0.001 to 0.014 in terms of oxides.

Exhaust gas purifying catalyst

This exhaust gas purifying catalyst is provided with a substrateand a catalyst layerformed on a surface of the substrate. The catalyst layercontains zeolite particlesthat support a metal, and a rare earth element-containing compoundthat contains a rare earth element. The rare earth element-containing compoundis added in such an amount that the molar ratio of the rare earth element relative to Si contained in the zeoliteis 0.001 to 0.014 in terms of oxides.

An exhaust gas-purifying system for purifying exhaust gas discharged from a diesel engine includes a diesel oxidation catalyst through which the exhaust gas passes, a diesel particulate filter which includes a filter substrate and an active component supported by the filter substrate and exhibiting a catalytic activity for selective catalytic reduction and through which the exhaust gas having passed through the diesel oxidation catalyst penetrates, and an ammonia slip catalyst which includes a zeolite whose alkaline metal ions are partially exchanged with transition metal ions and through which the exhaust gas having penetrated the diesel particulate filter passes.

Exhaust gas-purifying system

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Shizuoka, Japan

Mai Huong Tran