| 摘要 |
<p>Provided is a technique that is advantageous in downsizing an exhaust gas-purifying system for purifying an exhaust gas discharged from a diesel engine. An exhaust gas-purifying system (1) for purifying exhaust gas discharged from a diesel engine, includes a diesel oxidation catalyst (20) through which the exhaust gas passes, a diesel particulate filter (30) 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 (20) penetrates, and an ammonia slip catalyst (40) 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 (30) passes.</p> |
