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公开(公告)号：US20180147530A1
公开(公告)日：2018-05-31
申请号：US15881906
申请日：2018-01-29
发明人： Hai-Ying Chen , Joseph Fedeyko , Jing Lu
IPC分类号： B01D53/94 , B01J29/44 , B01J29/076 , B01J29/76 , B01J29/80 , B01J35/04 , B01J37/02 , F01N3/28 , F01N3/20 , B01J21/04 , B01J23/42 , B01J29/068 , B01J29/072 , B01J29/70
CPC分类号： B01D53/9418 , B01D53/9431 , B01D2251/2062 , B01D2255/1021 , B01D2255/20738 , B01D2255/20761 , B01D2255/2092 , B01D2255/50 , B01D2255/9022 , B01D2255/911 , B01D2257/404 , B01D2257/406 , B01J21/04 , B01J23/42 , B01J29/068 , B01J29/072 , B01J29/076 , B01J29/44 , B01J29/70 , B01J29/763 , B01J29/80 , B01J35/04 , B01J37/0244 , B01J37/0246 , B01J2229/18 , B01J2229/36 , F01N3/2066 , F01N3/2828 , F01N2330/06 , F01N2370/04 , F01N2510/068 , F01N2570/14 , F01N2570/18 , Y02A50/2344 , Y02C20/10 , Y02T10/24
摘要： Catalysts having a blend of platinum on a support with low ammonia storage with a Cu-SCR catalyst or an Fe-SCR catalyst are disclosed. The catalysts can also contain one or two additional SCR catalysts. The catalysts can be present in one of various configurations. Catalytic articles containing these catalysts are disclosed. The catalytic articles are useful for selective catalytic reduction (SCR) of NOx in exhaust gases and in reducing the amount of ammonia slip. Methods for producing such articles are described. Methods of using the catalytic articles in an SCR process, where the amount of ammonia slip is reduced, are also described.
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公开(公告)号：US09951673B2
公开(公告)日：2018-04-24
申请号：US15042784
申请日：2016-02-12
IPC分类号： F01N3/00 , F01N3/02 , F01N3/10 , F01N3/20 , F01N11/00 , F01N3/023 , F01N3/025 , F01N3/08 , F01N9/00 , F01N5/02
CPC分类号： F01N11/007 , F01N3/0234 , F01N3/0253 , F01N3/0842 , F01N3/0864 , F01N3/0871 , F01N3/106 , F01N3/2013 , F01N3/2033 , F01N3/206 , F01N5/02 , F01N9/002 , F01N2240/02 , F01N2240/16 , F01N2240/30 , F01N2250/02 , F01N2550/02 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2560/08 , F01N2570/14 , F01N2570/16 , F01N2610/03 , F01N2610/10 , F01N2900/0408 , F01N2900/0411 , F01N2900/0416 , F01N2900/0602 , F01N2900/14 , F01N2900/1402 , Y02A50/2344 , Y02T10/16 , Y02T10/26 , Y02T10/47
摘要： An aftertreatment device for reducing NOx, PM, HC, and CO generated by a compression-ignition engine. In this device, lean exhaust air generated in the engine is enriched using a reactor together with an oxygen sorption device according to a target deNOx efficiency value, and heat energy is recovered. The enriched exhaust gas then passes through an oxidation catalyst, where NOx is reduced with CO and HC. PM in the exhaust gas is further trapped in a DPF. To lower energy cost, an heat exchanger is used for more effectively heating the DPF during regeneration, and an exhaust gas compressor positioned upstream from the DPF is employed to control engine back pressure. When exhaust gas temperature is low, to regenerate the DPF with minimum energy consumption, an electrical heater is used to heat dosing fuel before it is mixed with exhaust gas, and a regeneration heating process is then jump-started.
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3.发明申请公开(公告)号：US20180023441A1
公开(公告)日：2018-01-25
申请号：US15649899
申请日：2017-07-14
发明人： Arifumi MATSUMOTO
CPC分类号： F01N3/208 , F01N3/2066 , F01N3/2073 , F01N11/00 , F01N13/0093 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2570/14 , F01N2610/02 , F01N2610/10 , F01N2610/1453 , F01N2610/146 , F01N2610/1486 , F01N2900/1411 , F01N2900/1812 , F01N2900/1821 , Y02A50/2344 , Y02T10/24
摘要： In an exhaust gas control system for an internal combustion engine, addition valves which add an additive toward a first selective reduction NOx catalyst are provided in an exhaust passage on both of an upstream side and a downstream side of the SCR catalyst. In a case where a flow rate of exhaust gas flowing in the exhaust passage is equal to or lower than a predetermined flow rate, the additive is added from both addition valves to allow ammonia to be adsorbed onto the first selective reduction NOx catalyst.
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公开(公告)号：US20180017002A1
公开(公告)日：2018-01-18
申请号：US15638719
申请日：2017-06-30
CPC分类号： F02D41/0275 , B01D53/9418 , B01D53/9422 , B01D53/9436 , B01D53/9477 , B01D53/9495 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N9/00 , F01N2570/14 , F01N2900/1614 , F02D41/0055 , F02D41/0077 , F02D41/10 , F02D41/1454 , F02D41/1461 , F02D41/405 , F02D2200/0802 , F02D2200/0806 , F02D2200/602 , F02D2250/36 , F02M26/25 , Y02A50/2344 , Y02T10/24 , Y02T10/44 , Y02T10/47
摘要： An exhaust emission control system of an engine is provided, which includes a NOx catalyst disposed in an exhaust passage for storing NOx within exhaust gas when an air-fuel ratio of the exhaust gas is lean, and reducing the stored NOx when the air-fuel ratio is approximately stoichiometric or rich. A processor executes a NOx reduction controlling module for performing a NOx reduction control in which a fuel injector performs a post injection to control the air-fuel ratio to a target ratio, and an EGR controlling module for controlling an EGR valve to recirculate EGR gas. In the NOx reduction control, the EGR controlling module controls an opening of the EGR valve to a target opening smaller than when the NOx reduction control is not performed. The NOx reduction controlling module starts the control after the EGR valve opening is controlled to the target opening.
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公开(公告)号：US20170218813A1
公开(公告)日：2017-08-03
申请号：US15120101
申请日：2015-02-27
申请人： Scania C V AB
发明人： Magnus NILSSON , Henrik BIRGERSSON
CPC分类号： F01N3/208 , B01D46/0027 , B01D46/0061 , B01D53/9418 , B01D53/9495 , B01D2279/30 , F01N3/021 , F01N3/023 , F01N3/035 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N9/00 , F01N11/002 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2430/00 , F01N2510/06 , F01N2570/14 , F01N2590/08 , F01N2610/02 , F01N2610/144 , F01N2900/04 , F01N2900/14 , F01N2900/1402 , F01N2900/1404 , F01N2900/1616 , Y02A50/2344 , Y02T10/24 , Y02T10/47
摘要： An exhaust treatment system comprising: a first dosage device to supply a first additive into an exhaust stream; a first reduction catalyst device downstream of said first dosage device, including a slip-catalyst primarily for reduction of nitrogen oxides (NOx) through the use of the additive, and secondarily for oxidation of additive; an oxidation catalyst downstream of said first reduction catalyst device; a particulate filter downstream of said oxidation catalyst; a second dosage device downstream of said particulate filter to supply a second additive into said exhaust stream; a second reduction catalyst device downstream of said second dosage device for a reduction of nitrogen oxides in said exhaust stream using at least one of said first and said second additive.
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公开(公告)号：US20170138284A1
公开(公告)日：2017-05-18
申请号：US15335121
申请日：2016-10-26
发明人： Tatsuya UCHIMOTO , Ken OGAWA , Hiroshi AMAIKE , Shinichi OKUNISHI , Takehito KIMATA , Takao MISHIMA
CPC分类号： F02D41/0235 , B01D53/9431 , B01D53/9445 , B01D53/9495 , B01D2255/91 , B01D2258/012 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N3/101 , F01N3/36 , F01N11/00 , F01N2550/03 , F01N2560/026 , F01N2570/14 , F01N2610/03 , F01N2900/0404 , F01N2900/0416 , F01N2900/0422 , F01N2900/1402 , F02D41/0275 , F02D41/1463 , F02D41/1475 , F02D41/26 , Y02A50/2344 , Y02T10/22 , Y02T10/47
摘要： An exhaust gas purifying apparatus for an internal combustion engine, in which a NOx absorbing catalyst and a NOx concentration sensor for detecting a NOx concentration in exhaust gases of the engine, are provided in an exhaust passage of the engine. A rich spike for temporarily enriching the air-fuel ratio is performed, and an execution timing of the rich spike is determined based on a detected output from the NOx concentration sensor. Performing the rich spike is determined to be unnecessary during a reducing state period from the time the rich spike ends to the time a preset time period has elapsed, and is also determined to be unnecessary when a change tendency of the detected output is determined to be an output decreasing state where the detected output is decreasing. The execution timing of the rich spike is determined using the detected output when the change tendency is determined to be an output staying/increasing state where the detected output is staying at a constant value or increasing after the end timing of the reducing state period.
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公开(公告)号：US20170113186A1
公开(公告)日：2017-04-27
申请号：US15301690
申请日：2015-03-30
申请人： ATSUMITEC CO., LTD.
CPC分类号： B01D53/9413 , B01D53/9418 , B01D53/9445 , B01D53/9477 , B01D2251/202 , B01D2255/207 , B01D2255/20738 , B01D2255/20753 , B01D2255/9205 , B01J23/755 , B01J23/892 , B01J23/8993 , B01J35/04 , B01J37/0225 , F01N3/101 , F01N3/20 , F01N9/00 , F01N13/009 , F01N2240/30 , F01N2330/22 , F01N2370/02 , F01N2570/14 , F01N2900/1402 , F01N2900/1404 , Y02A50/2344 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： An exhaust gas purification system which is capable of purifying exhaust gas without a noble metal being carried, and maintaining exhaust gas purification performance even at high temperatures; a catalyst; and an exhaust gas purification method are disclosed. A foamed metal catalyst which is made of a transition metal element excepting platinum group elements and is formed of a metal having a porosity of not less than 80%, and which reduces NOx by being brought into contact with an exhaust gas having a hydrogen concentration of not less than a predetermined concentration (e.g., 2%) and a temperature of not less than 230° C., is provided in an exhaust gas passage of an internal combustion engine that discharges the exhaust gas.
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公开(公告)号：US20170082003A1
公开(公告)日：2017-03-23
申请号：US15120104
申请日：2015-02-27
申请人： SCANIA CV AB
发明人： Magnus NILSSON
CPC分类号： F01N3/208 , B01D46/0027 , B01D46/0061 , B01D53/9418 , B01D53/9495 , B01D2279/30 , F01N3/021 , F01N3/023 , F01N3/035 , F01N3/103 , F01N3/106 , F01N3/2066 , F01N9/00 , F01N11/002 , F01N13/009 , F01N13/0093 , F01N13/0097 , F01N2430/00 , F01N2510/06 , F01N2570/14 , F01N2590/08 , F01N2610/02 , F01N2610/144 , F01N2900/04 , F01N2900/14 , F01N2900/1402 , F01N2900/1404 , F01N2900/1616 , Y02A50/2344 , Y02T10/24 , Y02T10/47
摘要： A treatment system for providing treatment of an exhaust stream comprising nitrogen oxides NOx, in which nitrogen monoxide NO and nitrogen dioxide NO2 are comprised. When the exhaust stream passes through the treatment system, oxidation occurs of compounds comprising nitrogen, carbon and/or hydrogen. An amount of nitrogen oxides NOx reaching a reduction catalyst device downstream of the oxidising component in the exhaust treatment system is reduced. A ratio (NO2/NOx)det between an amount of nitrogen dioxide NO2 reaching a reduction catalyst device and the amount of nitrogen oxides NOx reaching the reduction catalyst device is determined. An active control of at least one parameter related to the combustion engine is carried out, based on the determined ratio, so that the amount of nitrogen oxides NOx reaching the reduction catalyst device is increased, if the determined ratio (NO2/NOx)det exceeds an upper threshold value (NO2/NOx)threshold_high.
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9.发明申请METHOD FOR REGENERATING LEAN NOx TRAP OF EXHAUST PURIFICATION SYSTEM PROVIDED WITH LEAN NOx TRAP AND SELECTIVE CATALYTIC REDUCTION CATALYST AND EXHAUST PURIFICATION SYSTEM 有权用于再生稀土氧化物捕获系统和选择性催化还原催化剂和排气净化系统提供的排气净化系统的优化方法公开(公告)号：US20170074191A1
公开(公告)日：2017-03-16
申请号：US14954866
申请日：2015-11-30
发明人： Young Jic KIM , Jungwhun KANG , Won Jin JO
CPC分类号： F02D41/0275 , F01N3/021 , F01N3/0807 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N3/206 , F01N3/2066 , F01N13/009 , F01N2260/04 , F01N2430/06 , F01N2560/025 , F01N2560/026 , F01N2560/06 , F01N2560/08 , F01N2570/14 , F01N2570/18 , F01N2610/02 , F01N2610/1453 , F01N2900/08 , F01N2900/1404 , F01N2900/1406 , F01N2900/1614 , F01N2900/1622 , F02D41/0235 , F02D41/1446 , F02D2200/08 , F02D2200/0806 , Y02A50/2344 , Y02T10/24
摘要： A method for regenerating a lean NOx trap (LNT) of an exhaust purification system having the LNT and a selective catalytic reduction (SCR) catalyst includes determining whether a regeneration release condition of the LNT is satisfied; determining whether a regeneration demand condition of the LNT is satisfied; and performing regeneration of the LNT if the regeneration release condition of the LNT and the regeneration demand condition of the LNT are satisfied, wherein satisfaction of the regeneration release condition of the LNT is determined based on an NOx amount absorbed in the LNT, an NH3 amount stored in the SCR catalyst and temperature at an upstream of the SCR catalyst.
摘要翻译： 一种用于再生具有LNT和选择性催化还原（SCR）催化剂的排气净化系统的贫NOx捕集器（LNT）的方法包括确定是否满足LNT的再生释放条件; 确定是否满足所述LNT的再生需求条件; 如果LNT的再生释放条件和LNT的再生需要条件满足，则执行LNT的再生，其中基于在LNT中吸收的NOx量来确定LNT的再生释放条件的满足度，NH 3量 储存在SCR催化剂和SCR催化剂上游的温度。
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10.发明申请PROCESSING UNIT FOR A WASHING MEDIUM CONTAMINATED WITH SULPHUR OXIDES AND/OR NITROGEN OXIDES 审中-公开用硫氧化物和/或氮氧化物污染的洗涤介质的加工单元公开(公告)号：US20170043275A1
公开(公告)日：2017-02-16
申请号：US15304599
申请日：2015-03-25
发明人： Ansgar Kursawe , Stefan Hauke , Ralph Joh , Markus Kinzl , Rüdiger Schneider
CPC分类号： B01D9/0031 , B01D9/0013 , B01D9/0022 , B01D9/004 , B01D9/0059 , B01D53/1425 , B01D53/1475 , B01D53/502 , B01D53/60 , B01D53/62 , B01D53/73 , B01D53/96 , B01D2009/0086 , B01D2251/306 , B01D2251/506 , B01D2252/20494 , B01D2258/0283 , Y02A50/2344 , Y02A50/2348 , Y02C10/04 , Y02C10/06
摘要： A processing unit for a liquid washing medium contaminated with sulphur oxides and/or nitrogen oxides, has an evaporation stage for concentrating the active components of the washing medium by an evaporator and/or by a heat exchanger, and has a collecting tank connected to the evaporator and/or to the heat exchanger. The collecting tank is configured as a crystallizer for removing sulfur oxides from the washing medium by crystallization of a sulphate, in particular of potassium sulphate. A separating device for carbon dioxide has a corresponding processing unit, and a method for processing a washing medium contaminated with sulphur oxides and/or nitrogen oxides uses a corresponding processing unit.
摘要翻译： 用于被硫氧化物和/或氮氧化物污染的液体洗涤介质的处理单元具有用于通过蒸发器和/或通过热交换器浓缩洗涤介质的活性组分的蒸发阶段，并且具有连接到 蒸发器和/或热交换器。 收集罐被配置为结晶器，用于通过硫酸盐，特别是硫酸钾的结晶从洗涤介质中除去硫氧化物。 用于二氧化碳的分离装置具有相应的处理单元，并且用于处理被硫氧化物和/或氮氧化物污染的洗涤介质的方法使用相应的处理单元。
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