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公开(公告)号:US06670296B2
公开(公告)日:2003-12-30
申请号:US09758900
申请日:2001-01-11
IPC分类号: B01J2906
CPC分类号: B01D53/9422 , B01D2255/2042 , B01D2255/2092 , B01D2255/50 , B01D2255/904 , B01D2255/9202 , B01J23/02 , B01J29/061 , B01J35/0006
摘要: A NOx, catalyst combination for treating a lean exhaust gas stream comprising an alkaline earth-alumina catalyst and an alkaline earth-zeolite catalyst, arranged on a substrate such that the gas stream first contacts the alkaline earth-alumina catalyst prior to contacting the alkaline earth-zeolite catalyst.
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公开(公告)号:US06407032B1
公开(公告)日:2002-06-18
申请号:US09751685
申请日:2000-12-29
IPC分类号: B01J2300
CPC分类号: B01D53/9422 , B01D2255/104 , B01D2255/2042 , B01D2255/20715 , B01D2255/20746 , B01D2255/20753 , B01D2255/20769 , B01D2255/50 , B01J27/16 , B01J37/0244 , B01J37/0246
摘要: A poison resistant lean NOx catalyst comprising: a protective coating of a first catalyst support material including a metal-zirconium phosphate component, coated on a second NOx occluding catalyst material.
摘要翻译: 一种耐毒性贫NOx催化剂,包括:第一催化剂载体材料的保护涂层,其包括涂覆在第二NOx吸留催化剂材料上的磷酸金属锆组分。
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公开(公告)号:US06576587B2
公开(公告)日:2003-06-10
申请号:US09805670
申请日:2001-03-13
IPC分类号: B01J2358
CPC分类号: B01J37/0246 , B01J23/34 , B01J23/78 , B01J29/072 , B01J35/10 , B01J35/1019
摘要: A catalyst for adsorbing oxides of nitrogen from the exhaust gases of an internal combustion engine, comprising an alkaline earth active catalyst site, and a transition metal oxide having a surface area of at least about 75 m2 /g.
摘要翻译: 一种用于从包含碱土金属活性催化剂位点的内燃机的废气中吸附氮的氧化物的催化剂和表面积至少为约75m 2 / g的过渡金属氧化物。
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公开(公告)号:US07198764B2
公开(公告)日:2007-04-03
申请号:US10379762
申请日:2003-03-05
IPC分类号: B01J19/08
CPC分类号: B01J19/2485 , B01D53/9431 , B01D53/9495 , B01J19/088 , B01J23/6482 , B01J2219/0847 , B01J2219/0849 , B01J2219/0883 , B01J2219/0894 , F01N3/021 , F01N3/033 , F01N3/035 , F01N3/28 , F01N3/2882 , F01N3/36 , F01N2240/28 , F01N2240/30 , F01N2330/06 , F01N2430/085 , F01N2570/14 , F01N2570/18 , Y02A50/2344
摘要: In one embodiment, a method of treating a gas stream comprises: controlling an amount of the NH3 entering a catalytic unit and converting NO2 and the NH3 to N2 in the catalytic unit, wherein greater than or equal to about 60 wt % of NOx initially in the gas stream is converted to N2. In one embodiment, a gas treatment system comprises: a plasma reactor disposed downstream of an engine; a cracking catalyst disposed downstream of the engine; and a catalytic unit capable of converting NO and HC to NH3, and capable of converting NH3 and NO2 to N2.
摘要翻译: 在一个实施方案中,处理气流的方法包括:控制进入催化单元的NH 3的量并将NO 3和NH 3 在催化单元中,其中大于或等于约60重量%的NOx最初在气流中转化为N 2 N 2。 在一个实施例中,气体处理系统包括:设置在发动机下游的等离子体反应器; 设置在发动机下游的裂化催化剂; 和能够将NO和HC转化成NH 3并能够将NH 3和NO 2 2转化成N 2的催化单元 SUB>。
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公开(公告)号:US06887438B2
公开(公告)日:2005-05-03
申请号:US09745849
申请日:2000-12-21
IPC分类号: B01D53/94 , B01J19/08 , B01J23/755 , B01J29/072 , B01J33/00 , B01J37/02 , F01N3/08 , B01D5/00 , B01D52/34
CPC分类号: B01D53/9481 , B01D2255/104 , B01D2255/2042 , B01D2255/2063 , B01D2255/20715 , B01D2255/20753 , B01J19/088 , B01J23/755 , B01J29/072 , B01J33/00 , B01J37/0246 , B01J2219/0875 , B01J2219/0892 , B01J2219/0896 , F01N3/0807 , F01N3/0842 , F01N2240/28
摘要: A NOx control for an exhaust is provided. The NOx control includes a nickel compound and a NOx adsorber. Systems for treating an exhaust gas are also provided, including use of a non-thermal plasma reactor and a NOx control, and optionally a particulate trap.
摘要翻译: 提供了用于排气的NO sub> x SUB>控制。 NO x控制包括镍化合物和NO x x吸附剂。 还提供了用于处理废气的系统,包括使用非热等离子体反应器和NO x控制,以及任选的颗粒捕集器。
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公开(公告)号:US06192324B1
公开(公告)日:2001-02-20
申请号:US08515076
申请日:1995-08-14
IPC分类号: B60Q100
CPC分类号: F01N11/00 , F01N2550/02 , Y02T10/47
摘要: This invention is an on-board means to verify that a vehicle's exhaust emissions control system functions normally. It monitors hydrocarbon (HC) exhaust emissions for a few minutes after a cold start or at other selected times. If used from cold start, it is an on-board approximation to taking the first bag sample in an FTP test. The measurement involves storing a portion of the exhaust HC. Various embodiments are discussed. Some involve measuring the cumulative amount of stored HC (as on a substrate) during the test. Other embodiments wait until the end of the test to measure the amount of stored HC. At the end of each test (or trip), the storage means is returned to an empty state to await the next test. If HC is stored on or in a substrate, for example, the temperature of the substrate is raised. This decreases the amount of stored HC vapor and renews the substrate for the next test.
摘要翻译: 本发明是车载废气排放控制系统正常工作的车载装置。 它在冷启动后或其他选定的时间监测碳氢化合物(HC)排放物几分钟。 如果从冷启动使用,则在FTP测试中采用第一个袋样本进行车载近似。 测量涉及存储排气HC的一部分。 讨论各种实施例。 一些涉及在测试期间测量储存的HC(如在基底上)的累积量。 其他实施例等待直到测试结束来测量存储的HC的量。 在每次测试(或跳闸)结束时,存储装置返回到空状态,等待下一次测试。 如果将HC储存在基板上或衬底中,例如,衬底的温度升高。 这降低了储存的HC蒸气的量,并更新了下一次测试的底物。
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公开(公告)号:US06887436B1
公开(公告)日:2005-05-03
申请号:US09604129
申请日:2000-06-27
申请人: Galen Bruce Fisher , John E. Kirwan
发明人: Galen Bruce Fisher , John E. Kirwan
CPC分类号: B01J8/0221 , B01J2208/00548 , B01J2208/00716 , B01J2219/002 , B01J2219/00213 , B01J2219/00231 , C01B3/38 , Y02P20/52
摘要: A fast light-off catalytic reformer and method includes at least one preferably substantially cylindrical reactor tube having an inlet for receiving a flow of fuel and a flow of air, a reforming catalyst disposed within the reactor tube for converting the fuel and air to a reformate stream, and an outlet for discharging the produced reformate stream. An ignition device disposed within the reactor tube initiates an exothermic reaction between the fuel and air. Heat generated thereby provides fast light-off of the reforming catalyst. An associated control system selects fuel and air flow delivery rates and operates the ignition device to achieve fast light-off of the reforming catalyst at start-up and to maintain the catalyst at a temperature sufficient to optimize reformate yield. The rapid production of high yields of reformate is particularly suitable for use in an on-board reforming strategy for meeting SULEV emissions with spark-ignition engines, especially with larger, higher emitting vehicles.
摘要翻译: 快速熄灭催化重整器和方法包括至少一个优选基本上圆柱形的反应器管,其具有用于接收燃料流和空气流的入口,设置在反应器管内用于将燃料和空气转化成重整产物的重整催化剂 流,以及用于排出所产生的重整油流的出口。 设置在反应器管内的点火装置启动燃料和空气之间的放热反应。 因此产生的热量可以快速地关闭重整催化剂。 相关联的控制系统选择燃料和空气流量传输速率并操作点火装置,以在启动时快速启动重整催化剂,并将催化剂保持在足以使重整产率最优化的温度。 快速生产高产率的重整油特别适用于使用火花点火发动机满足SULEV排放的车载改造策略,特别是对于较大,较高排放的车辆。
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公开(公告)号:US07095501B2
公开(公告)日:2006-08-22
申请号:US10348496
申请日:2003-01-21
IPC分类号: G01N21/00
CPC分类号: G01N33/4972 , B60K28/063 , G01N1/2214 , G01N1/40 , G01N1/405
摘要: An ethanol sensing unit and a method of using, wherein the unit is particularly suitable for use in a confined environment such as the passenger compartment of a passenger vehicle. The sensing unit comprises a device for collecting ethanol vapors while the device is at a first temperature, a device for heating the collecting device to a second temperature higher than the first temperature so as to release ethanol vapors from the collecting device, and a device for sensing the ethanol vapors released from the collecting device when heated by the heating device. The sensing unit is also adapted to delay the operation of the heating device until a period of time sufficient for the collecting device to adsorb ethanol vapors from air contained in the confined environment.
摘要翻译: 一种乙醇检测单元和一种使用方法,其中该单元特别适用于诸如客车的客舱的密闭环境中。 感测单元包括用于在装置处于第一温度时收集乙醇蒸气的装置,用于将收集装置加热到高于第一温度的第二温度以便从收集装置释放乙醇蒸气的装置,以及用于 感测由加热装置加热时从收集装置释放的乙醇蒸汽。 感测单元还适于延迟加热装置的操作,直到足以使收集装置从包含在密闭环境中的空气中吸收乙醇蒸气的时间段。
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