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    Method and system for purification of exhaust gas from diesel engines
    1.
    发明授权
    Method and system for purification of exhaust gas from diesel engines 有权
    柴油发动机废气净化方法及系统

    公开(公告)号：US08127535B2

    公开(公告)日：2012-03-06

    申请号：US12342924

    申请日：2008-12-23

    申请人： Jesper Norsk ,  Keld Johansen ,  Ioannis Gekas

    发明人： Jesper Norsk ,  Keld Johansen ,  Ioannis Gekas

    IPC分类号： F01N3/00 ,  F01N3/10 ,  F28F3/00

    CPC分类号： F01N3/206 ,  F01N3/0231 ,  F01N3/2066 ,  F01N2240/02 ,  Y02T10/24

    摘要： The invention provides a method and system for purification of a carbon monoxide, nitrogen oxides, incompletely combusted hydrocarbons and soot containing exhaust gas from a combustion engine comprising the steps of catalytically oxidizing the carbon monoxide in the exhaust gas, retaining soot and remaining amounts of hydrocarbons in the oxidised exhaust gas in a filter, addition of a reducing agent to gas and catalytically reducing nitrogen oxides, and obtaining a purified exhaust gas. The invention further comprises the steps of controlling a temperature in the oxidising catalyst by passing at least a part of the gas from the engine through a first side of a heat exchanger, and passing at least a part of the purified exhaust gas through a second side of the heat exchanger, and leading the remaining amount of the gas from the engine through a by-pass across the first side of the heat exchanger and leading the remaining amount of the purified exhaust gas through a by-pass across the second side of the heat exchanger.

    摘要翻译： 本发明提供一种用于净化来自内燃机的一氧化碳，氮氧化物，不完全燃烧的烃和含有废气的烟炱的方法和系统，包括以下步骤：催化氧化废气中的一氧化碳，保留烟灰和剩余量的烃 在过滤器中的氧化废气中，向气体中加入还原剂并催化还原氮氧化物，并获得纯化的废气。 本发明还包括以下步骤：通过使来自发动机的至少一部分气体通过热交换器的第一侧来控制氧化催化剂中的温度，并使纯化废气的至少一部分通过第二侧 并且引导来自发动机的剩余量的气体经过热交换器的第一侧的旁路，并导致净化废气的剩余量穿过第二侧的旁路 热交换器。

    METHOD FOR PURIFICATION OF AN EXHAUST GAS FROM A DIESEL ENGINE
    2.
    发明申请
    METHOD FOR PURIFICATION OF AN EXHAUST GAS FROM A DIESEL ENGINE 审中-公开
    从柴油发动机净化排气的方法

    公开(公告)号：US20090260346A1

    公开(公告)日：2009-10-22

    申请号：US12421947

    申请日：2009-04-10

    申请人： Ioannis Gekas ,  Keld Johansen

    发明人： Ioannis Gekas ,  Keld Johansen

    IPC分类号： F01N3/20

    CPC分类号： F01N3/2066 ,  F01N3/0253 ,  F01N3/035 ,  F01N13/0097 ,  F01N2610/02 ,  F01N2610/03 ,  Y02T10/24

    摘要： A method for removing impurities in exhaust gas from a diesel engine, where the impurities comprise nitrogen oxides, carbon monoxide, particulate matter and incompletely combusted hydrocarbons. The method comprises the steps of injection of a reductant comprising urea or ammonia into the exhaust gas from the engine, selective catalytic reduction of the nitrogen oxides in the exhaust gas by the reductant, and intermittent injection of a hydrocarbon into this effluent. The succeeding steps are oxidation of carbon monoxide, particulate matter, incompletely combusted hydrocarbons and injected hydrocarbon to carbon dioxide and water, and in selectively oxidising possible excess of reductant to free nitrogen, and finally filtration of the effluent by passing the gas through a catalysed filter. The remaining particulate matter is retained in the filter, and the carbon monoxide, particulate matter and hydrocarbons are oxidixed to carbon dioxide and water, and the reductant is selectively oxidixed to nitrogen, creating a purified exhaust gas.

    摘要翻译： 一种从柴油发动机中除去废气中的杂质的方法，其中杂质包括氮氧化物，一氧化碳，颗粒物质和不完全燃烧的烃。 该方法包括以下步骤：将来自发动机的废气中含有尿素或氨的还原剂注入，通过还原剂选择性地催化还原废气中的氮氧化物，并将烃间歇地注入该流出物。 后续步骤是将一氧化碳，颗粒物质，不完全燃烧的烃和注入的烃氧化成二氧化碳和水，以及选择性氧化可能过量的还原剂到游离氮，最后通过使气体通过催化过滤器过滤流出物 。 剩余的颗粒物质保留在过滤器中，一氧化碳，颗粒物质和烃类被氧化成二氧化碳和水，还原剂选择性地被氧化成氮气，产生净化的废气。

    METHOD AND SYSTEM FOR PURIFICATION OF EXHAUST GAS FROM DIESEL ENGINES
    3.
    发明申请
    METHOD AND SYSTEM FOR PURIFICATION OF EXHAUST GAS FROM DIESEL ENGINES 有权
    从柴油发动机中净化排气的方法和系统

    公开(公告)号：US20090178393A1

    公开(公告)日：2009-07-16

    申请号：US12342924

    申请日：2008-12-23

    申请人： Jesper Norsk ,  Keld Johansen ,  Ioannis Gekas

    发明人： Jesper Norsk ,  Keld Johansen ,  Ioannis Gekas

    IPC分类号： F01N3/20 ,  F01N3/10

    CPC分类号： F01N3/206 ,  F01N3/0231 ,  F01N3/2066 ,  F01N2240/02 ,  Y02T10/24

    摘要： The invention provides a method and system for purification of a carbon monoxide, nitrogen oxides, incompletely combusted hydrocarbons and soot containing exhaust gas from a combustion engine comprising the steps of catalytically oxidising the carbon monoxide in the exhaust gas, retaining soot and remaining amounts of hydrocarbons in the oxidised exhaust gas in a filter, addition of a reducing agent to gas and catalytically reducing nitrogen oxides, and obtaining a purified exhaust gas. The invention further comprises the steps of controlling a temperature in the oxidising catalyst by passing at least a part of the gas from the engine through a first side of a heat exchanger, and passing at least a part of the purified exhaust gas through a second side of the heat exchanger, and leading the remaining amount of the gas from the engine through a by-pass across the first side of the heat exchanger and leading the remaining amount of the purified exhaust gas through a by-pass across the second side of the heat exchanger.

    摘要翻译： 本发明提供一种用于净化来自内燃机的一氧化碳，氮氧化物，不完全燃烧的烃和含有废气的烟灰的方法和系统，包括以下步骤：催化氧化废气中的一氧化碳，保留烟灰和剩余量的烃 在过滤器中的氧化废气中，向气体中加入还原剂并催化还原氮氧化物，并获得纯化的废气。 本发明还包括以下步骤：通过使来自发动机的至少一部分气体通过热交换器的第一侧来控制氧化催化剂中的温度，并使纯化废气的至少一部分通过第二侧 并且引导来自发动机的剩余量的气体经过热交换器的第一侧的旁路，并导致净化废气的剩余量穿过第二侧的旁路 热交换器。

    Method for controlling injection of reducing agent in exhaust gas from a combustion engine
    6.
    发明授权
    Method for controlling injection of reducing agent in exhaust gas from a combustion engine 有权
    用于控制来自内燃机的废气中的还原剂的注入的方法

    公开(公告)号：US07200990B2

    公开(公告)日：2007-04-10

    申请号：US11288152

    申请日：2005-11-29

    申请人： Pär Gabrielsson ,  Ioannis Gekas ,  Max Thorhauge

    发明人： Pär Gabrielsson ,  Ioannis Gekas ,  Max Thorhauge

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  F01N3/206 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/146 ,  Y02T10/24

    摘要： The invention relates to a method for controlling injection of a reductant into a NOx containing exhaust gas stream from a combustion engine, where combustion of a known fuel takes place and where the NOx is reduced by selective catalytic reduction, SCR, in the presence of a SCR catalyst, comprising establishing signals related to exhaust gas flow, HOx concentration in the exhaust gas stream upstream of the catalyst, exhaust gas temperature upstream of the SCR catalyst, exhaust gas temperature downstream of the SCR catalyst and to input data for catalyst characteristics. From the signals an adjusted amount of the reductant is calculated by using a calculated amount of reductant and a value d(E*T)/dt, where E is the exhaust gas flow, T is the exhaust gas temperature upstream of the catalyst and t is time.

    摘要翻译： 本发明涉及一种用于控制将还原剂注入含有来自内燃机的含NO x的废气流的方法，其中发生已知燃料的燃烧，其中NO x 在SCR催化剂的存在下，通过选择性催化还原SCR来还原SUB，其包括在催化剂上游的排气流中建立与废气流，HO x x H浓度相关的信号，排气 SCR催化剂上游的温度，SCR催化剂下游的排气温度和输入催化剂特性的数据。 根据该信号，通过使用计算量的还原剂和d（E * T）/ dt计算还原剂的调整量，其中E是排气流量，T是催化剂上游的排气温度，t 是时候了

    Method for controlling injection of reducing agent in exhaust gas from a combustion engine
    8.
    发明申请
    Method for controlling injection of reducing agent in exhaust gas from a combustion engine 有权
    用于控制来自内燃机的废气中的还原剂的注入的方法

    公开(公告)号：US20060130461A1

    公开(公告)日：2006-06-22

    申请号：US11288152

    申请日：2005-11-29

    申请人： Par Gabrielsson ,  Ioannis Gekas ,  Max Thorhauge

    发明人： Par Gabrielsson ,  Ioannis Gekas ,  Max Thorhauge

    IPC分类号： F01N3/00

    CPC分类号： F01N3/208 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  F01N3/206 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2610/02 ,  F01N2610/08 ,  F01N2610/146 ,  Y02T10/24

    摘要： The invention relates to a method for controlling injection of a reductant into a NOx containing exhaust gas stream from a combustion engine, where combustion of a known fuel takes place and where the HOx is reduced by selective catalytic reduction, SCR, in the presence of a SCR catalyst, comprising establishing signals related to exhaust gas flow, HOx concentration in the exhaust gas stream upstream of the catalyst, exhaust gas temperature upstream of the SCR catalyst, exhaust gas temperature downstream of the SCR catalyst and to input data for catalyst characteristics. From the signals an adjusted amount of the reductant is calculated by using a calculated amount of reductant and a value d(E*T)/dt, where E is the exhaust gas flow, T is the exhaust gas temperature upstream of the catalyst and t is time.

    摘要翻译： 本发明涉及一种用于控制将还原剂注入含有来自内燃机的含NO x N 2废气流的方法，其中发生了已知燃料的燃烧，其中HO < 在SCR催化剂的存在下，通过选择性催化还原SCR来还原SUB，其包括在催化剂上游的排气流中建立与废气流，HO x x H浓度相关的信号，排气 SCR催化剂上游的温度，SCR催化剂下游的排气温度和输入催化剂特性的数据。 根据该信号，通过使用计算量的还原剂和d（E * T）/ dt计算还原剂的调整量，其中E是排气流量，T是催化剂上游的排气温度，t 是时候了