| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an exhaust emission control device which improves the efficiency of emission control by urea water with respect to NOx contained in exhaust gas. <P>SOLUTION: An exhaust emission control device 101 comprises an oxidation catalyst layer 12 formed at a midpoint in a path through which exhaust gas circulates, a hydrophilic layer 13 formed at least at an end surface 12b at a downstream side of the oxidation catalyst layer 12 and having at least one action of hydrophilic action and hydrolytic catalyst action, a SCR catalyst 15 provided downstream from the hydrophilic layer 13, and an injection valve 18 for supplying urea water to the hydrophilic layer 13. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
