Feed device for supplying solid urea granules into an ammonia generator arranged within or outside of an exhaust line
    1.
    发明申请
    Feed device for supplying solid urea granules into an ammonia generator arranged within or outside of an exhaust line 有权
    用于将固体尿素颗粒供给到布置在排气管线内或外的氨发生器中的进料装置

    公开(公告)号:US20050284135A1

    公开(公告)日:2005-12-29

    申请号:US11155333

    申请日:2005-06-16

    摘要: A feed device for supplying solid urea granules into an ammonia generator arranged within or outside of an exhaust line for production of ammonia makes possible NOx reduction with the catalytic purification of exhaust of an internal combustion engine, gas turbine, or a burner, whereby the solid urea granules are stored in a holding tank. No compressed air support for transporting and metering the urea granules is required and transporting and metering of the urea granules adapted to the ammonia specifications is possible. The feed device has a housing with an inlet for supplying the urea granules and internally, a motor-driven, rotating disk with at least one spiral-shaped acceleration channel, as well as an outlet leading outward, to which a tube leading to the ammonia generator is connected.

    摘要翻译: 用于将固体尿素颗粒供给到布置在用于生产氨的排气管线内或外的氨发生器中的进料装置使得可以通过内燃机,燃气轮机的排气的催化净化来实现NO x 或燃烧器,由此将固体尿素颗粒储存在储存罐中。 不需要用于运输和计量尿素颗粒的压缩空气支撑物,并且适合氨规格的尿素颗粒的输送和计量是可能的。 进料装置具有壳体,其具有用于供应尿素颗粒的入口和内部具有至少一个螺旋形加速通道的马达驱动的旋转盘,以及向外引导的出口,导向氨的管 发电机连接。

    Feed device for supplying solid urea granules into an ammonia generator arranged within or outside of an exhaust line
    2.
    发明授权
    Feed device for supplying solid urea granules into an ammonia generator arranged within or outside of an exhaust line 有权
    用于将固体尿素颗粒供给到布置在排气管线内或外的氨发生器中的进料装置

    公开(公告)号:US07178329B2

    公开(公告)日:2007-02-20

    申请号:US11155333

    申请日:2005-06-16

    IPC分类号: F01N3/00

    摘要: A feed device for supplying solid urea granules into an ammonia generator arranged within or outside of an exhaust line for production of ammonia makes possible NOx reduction with the catalytic purification of exhaust of an internal combustion engine, gas turbine, or a burner, whereby the solid urea granules are stored in a holding tank. No compressed air support for transporting and metering the urea granules is required and transporting and metering of the urea granules adapted to the ammonia specifications is possible. The feed device has a housing with an inlet for supplying the urea granules and internally, a motor-driven, rotating disk with at least one spiral-shaped acceleration channel, as well as an outlet leading outward, to which a tube leading to the ammonia generator is connected.

    摘要翻译: 用于将固体尿素颗粒供给到布置在用于生产氨的排气管线内或外的氨发生器中的进料装置使得可以通过内燃机,燃气轮机的排气的催化净化来实现NO x 或燃烧器,由此将固体尿素颗粒储存在储存罐中。 不需要用于运输和计量尿素颗粒的压缩空气支撑物,并且适合氨规格的尿素颗粒的输送和计量是可能的。 进料装置具有壳体,其具有用于供应尿素颗粒的入口和内部具有至少一个螺旋形加速通道的马达驱动的旋转盘,以及向外引导的出口,导向氨的管 发电机连接。

    Exhaust gas aftertreatment system
    4.
    发明授权
    Exhaust gas aftertreatment system 有权
    废气后处理系统

    公开(公告)号:US08176731B2

    公开(公告)日:2012-05-15

    申请号:US12150026

    申请日:2008-04-24

    IPC分类号: F01N3/10

    摘要: Exhaust gas aftertreatment system for internal combustion engines operated with a lean mixture, wherein nitrogen oxides are reduced by an SCR catalyst, and particulates are removed by a particle separator or filter. A thermolysis catalyst is located near the engine in the exhaust gas split stream downstream of the supply point of the reducing agent. At temperatures above 135° C., this thermolysis catalyst vaporizes the water component of the aqueous urea solution. It contains a catalyst material that is thermally stable at exhaust gas temperatures occurring near the engine and preferentially reacts with the urea to form isocyanic acid. A hydrolysis catalyst is located in the exhaust gas stream downstream of the return of the split stream into the main stream of exhaust gas. The hydrolysis catalyst converts the isocyanic acid formed during thermolysis to ammonia and carbon dioxide using water vapor formed in the thermolysis catalyst.

    摘要翻译: 用贫混合物操作的内燃机的废气后处理系统,其中通过SCR催化剂还原氮氧化物,通过颗粒分离器或过滤器去除颗粒。 热解催化剂位于发动机靠近还原剂供给点下游的排气分流中。 在135℃以上的温度下,该热分解催化剂蒸发尿素水溶液的水分。 它含有在发动机附近出现的废气温度下热稳定的催化剂材料,并优先与尿素反应形成异氰酸。 水解催化剂位于废气流中,将排气流返回到废气的主流中。 水解催化剂使用在热解催化剂中形成的水​​蒸汽将热解期间形成的异氰酸酯转化成氨和二氧化碳。

    Exhaust gas aftertreatment system
    5.
    发明申请
    Exhaust gas aftertreatment system 有权
    废气后处理系统

    公开(公告)号:US20090145117A1

    公开(公告)日:2009-06-11

    申请号:US12150026

    申请日:2008-04-24

    IPC分类号: F01N9/00

    摘要: Exhaust gas aftertreatment system for internal combustion engines operated with a lean mixture, wherein nitrogen oxides are reduced by an SCR catalyst, and particulates are removed by a particle separator or filter. A thermolysis catalyst is located near the engine in the exhaust gas split stream downstream of the supply point of the reducing agent. At temperatures above 135° C., this thermolysis catalyst vaporizes the water component of the aqueous urea solution. It contains a catalyst material that is thermally stable at exhaust gas temperatures occurring near the engine and preferentially reacts with the urea to form isocyanic acid. A hydrolysis catalyst is located in the exhaust gas stream downstream of the return of the split stream into the main stream of exhaust gas. The hydrolysis catalyst converts the isocyanic acid formed during thermolysis to ammonia and carbon dioxide using water vapor formed in the thermolysis catalyst.

    摘要翻译: 用贫混合物操作的内燃机的废气后处理系统,其中通过SCR催化剂还原氮氧化物,通过颗粒分离器或过滤器去除颗粒。 热解催化剂位于发动机靠近还原剂供给点下游的排气分流中。 在135℃以上的温度下,该热分解催化剂蒸发尿素水溶液的水分。 它含有在发动机附近出现的废气温度下热稳定的催化剂材料,并优先与尿素反应形成异氰酸。 水解催化剂位于废气流中,将排气流返回到废气的主流中。 水解催化剂使用在热解催化剂中形成的水​​蒸汽将热解期间形成的异氰酸酯转化成氨和二氧化碳。

    Method and Device for Providing Ammonia in an Exhaust Gas Flow of an Internal Combustion Engine
    6.
    发明申请
    Method and Device for Providing Ammonia in an Exhaust Gas Flow of an Internal Combustion Engine 审中-公开
    在内燃机的排气流中提供氨的方法和装置

    公开(公告)号:US20080089820A1

    公开(公告)日:2008-04-17

    申请号:US11949304

    申请日:2007-12-03

    申请人: Eberhard Jacob

    发明人: Eberhard Jacob

    IPC分类号: C01C1/02

    摘要: A method for providing ammonia (NH3) in an exhaust gas flow of an internal combustion engine includes generating nitrogen monoxide (NO) with a plasma generator, reversibly storing at least a portion of the nitrogen monoxide (NO), reducing at least a portion of the stored and/or generated nitrogen monoxide (NO) to form ammonia (NH3) in a first gas flow, and mixing the first gas flow with the exhaust gas flow. The method and a device for reducing nitrogen oxides advantageously increase the efficiency of an on-board plasma-assisted generation of ammonia, particularly for mobile applications, such as in motor vehicles, and reduces the consumption of fuel required therefor, in comparison to prior art devices and methods.

    摘要翻译: 在内燃机的废气流中提供氨(NH 3)的方法包括用等离子体发生器产生一氧化氮(NO),可逆地储存至少一部分一氧化氮(NO ),在第一气流中减少所储存和/或产生的一氧化氮(NO)的至少一部分以形成氨(NH 3),并且将第一气流与排气流 。 用于还原氮氧化物的方法和装置有利地提高了板载等离子体辅助生成氨的效率,特别是对于诸如机动车辆的移动应用,与现有技术相比,减少了所需燃料的消耗 设备和方法。

    Device and method for producing ammonia from solid urea pellets
    9.
    发明申请
    Device and method for producing ammonia from solid urea pellets 有权
    从固体尿素颗粒生产氨的装置和方法

    公开(公告)号:US20060045835A1

    公开(公告)日:2006-03-02

    申请号:US11218255

    申请日:2005-09-01

    IPC分类号: C01C1/02 B32B27/04

    摘要: A device for producing ammonia from urea pellets includes a pellet dispensing device, a pellet accelerator, a pellet shooting channel, and an ammonia reactor having a chamber or zone for shooting in urea pellets and a pellet deflector arranged on an end of the shooting path. The device further includes a urea pellet evaporation device and a hydrolytic catalytic converter. The urea pellets are removed from the reservoir in a regulated number/quantity by a dispensing device and transported to the accelerating device, where the pellets are moved from the pellet shooting channel into the ammonia reactor, where they are broken down into small pieces by impacting a pellet deflector at the end of the shooting path. The pieces are converted into a gas mixture containing ammonia and isocyanic acid by means of a urea evaporation device. The isocyanic acid is subsequently converted into ammonia and carbon dioxide.

    摘要翻译: 用于从尿素颗粒生产氨的装置包括颗粒分配装置,颗粒加速器,颗粒射击通道和具有用于在尿素颗粒中拍摄的室或区域的氨反应器和布置在拍摄路径的端部上的颗粒偏转器。 该装置还包括尿素颗粒蒸发装置和水解催化转化器。 尿素颗粒通过分配装置以规定数量/数量从储存器中取出并运送到加速装置,其中颗粒从颗粒射流通道移动到氨反应器中,在那里它们通过冲击分解成小块 在射击路径尽头的一个小球偏转器。 通过尿素蒸发装置将片状物转化成含有氨和异氰酸的气体混合物。 异氰酸随后转化成氨和二氧化碳。