UREA SOLUTION REFORMER AND EXHAUST GAS PURIFIER USING SAME
    1.
    发明公开
    UREA SOLUTION REFORMER AND EXHAUST GAS PURIFIER USING SAME 有权
    ABGASREINIGER DAMIT的HARNSTOFFLÖSUNGSREFORMER

    公开(公告)号:EP2687695A4

    公开(公告)日:2015-01-21

    申请号:EP12760036

    申请日:2012-03-14

    摘要: Disclosed is a urea solution reformer and an exhaust gas purifier using the same, configured to heat a carrier gas supplied from a carrier gas source by a carrier gas heating unit (16), to inject the carrier gas heated by the carrier gas heating unit from a carrier gas injecting nozzle (17), and to cause a urea solution (18) to be supplied by a first urea solution supply nozzle (21) to a tip end of the carrier gas injecting nozzle so that the urea solution is atomized by the carrier gas injected from the carrier gas injecting nozzle. Provided to face toward the carrier gas injecting nozzle is a catalyst unit (23) for decomposing the atomized urea solution to reform it into an ammonia gas. Further provided is an ammonia gas supply nozzle (24) attached to an exhaust pipe (12) of an engine so as to supply the ammonia gas discharged from an outlet of the catalyst unit into the exhaust pipe. The urea solution is sufficiently atomized, and thus reformed into an ammonia gas by the catalyst unit with a good efficiency.

    摘要翻译: 公开了一种尿素溶液重整器和使用该尿素溶液重整器的排气净化器,其被构造成通过载气加热单元(16)加热由载气源供给的载气,以将由载气加热单元加热的载气从 载气注入喷嘴(17),并且通过第一尿素溶液供给喷嘴(21)将尿素溶液(18)供给到载气注入喷嘴的前端,使得尿素溶液被 从载气喷射喷嘴喷射载气。 面向载气注入喷嘴的是用于分解雾化的尿素溶液以将其重整成氨气的催化剂单元(23)。 还提供了一个安装在发动机的排气管(12)上的氨气供给喷嘴(24),以将从催化剂单元的出口排出的氨气供应到排气管中。 尿素溶液充分雾化,从而通过催化剂单元以高效率重整成氨气。

    EXHAUST PURIFICATION APPARATUS
    4.
    发明公开
    EXHAUST PURIFICATION APPARATUS 有权
    ABGASREINIGUNGSVORRICHTUNG

    公开(公告)号:EP1830041A4

    公开(公告)日:2008-01-23

    申请号:EP05807040

    申请日:2005-11-17

    申请人: HINO MOTORS LTD

    摘要: Even in a vehicle with travel pattern of continuing operational status with low exhaust temperature, a satisfactory NO x reduction effect can be attained even at exhaust temperature lower than that required conventionally therefor. In an exhaust emission control device with selective reduction catalyst 10 incorporated in an exhaust pipe 9, ammonia being added upstream of the catalyst 10 for reduction and purification of NO x , the device comprises an ammonia generator 12 with a vessel 15 for holding urea water 23a and with an electrode 16 for generation of ammonia 13a, 13b through action of plasma on the urea water 23a in the vessel, the ammonia 13a, 13b generated in the generator 12 being fed upstream of the catalyst 10.

    摘要翻译: 即使在这样的行驶模式的车辆中,在低排气温度下持续行驶的状态持续下,在比现有技术低的排气温度下,可以实现优异的NOx减少效果。 本发明提供一种排气净化装置,该排气净化装置具有沿着排气管(9)的路径配置的选择还原型催化剂(10),该选择还原型催化剂(10)配置成向选择还原型催化剂(10)的上游填充氨,从而实现NOx净化净化 排气净化装置包括配备有用于容纳尿素水(23a)的容器(15)和用于向容器的尿素水(23a)施加等离子体的电极(16)从而产生氨的氨生成单元(12) ),并且适于将由氨生成单元(12)生成的氨(13a,13b)供给到选择还原型催化剂(10)的上游侧。