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    • 84. 发明申请
    • Plasma Generator
    • 等离子发生器
    • US20090121637A1
    • 2009-05-14
    • US11885840
    • 2006-03-07
    • Mounir Laroussi
    • Mounir Laroussi
    • H05H1/24
    • H05H1/2406H05H2001/2418H05H2001/245H05H2001/2462
    • A plasma generator, comprising a dielectric tube having a first end and a second end, wherein the first end is sealed, but for a gas inlet; at least one first dielectric disk located within the dielectric tube, wherein the first dielectric disk includes at least one first dielectric aperture formed therein; a first ring electrode that at least partially surrounds the at least one first dielectric aperture and is electrically coupled to a power supply; at least one second dielectric disk located proximate the second end of the dielectric tube, wherein the second dielectric disk includes at least one second dielectric aperture formed therein; and a second ring electrode that at least partially surrounds the at least one second dielectric aperture and is electrically coupled to the power supply. During use, the plasma generator produces at least one plasma plume that is launched into open air.
    • 一种等离子体发生器,包括具有第一端和第二端的电介质管,其中第一端被密封,但是用于气体入口; 位于所述电介质管内的至少一个第一电介质盘,其中所述第一电介质盘包括形成在其中的至少一个第一电介质孔; 至少部分地围绕所述至少一个第一电介质孔并且电耦合到电源的第一环电极; 至少一个位于所述电介质管的第二端附近的第二电介质盘,其中所述第二电介质盘包括形成在其中的至少一个第二电介质孔; 以及第二环形电极,其至少部分地围绕所述至少一个第二电介质孔并且电耦合到所述电源。 在使用期间,等离子体发生器产生至少一个发射到露天的等离子体羽流。
    • 87. 发明授权
    • Method of reducing NOx in diesel engine exhaust
    • 减少柴油机废气中的NOx的方法
    • US07090811B2
    • 2006-08-15
    • US10734094
    • 2003-12-11
    • Byong Kwon ChoJong-Hwan Lee
    • Byong Kwon ChoJong-Hwan Lee
    • B01D53/56B01D53/86B01J8/00C01B21/00
    • F01N3/2066F01N13/009F01N2240/28F01N2250/02F01N2610/03F01N2610/08F01N2610/10H05H1/2406H05H2001/245H05H2001/2468H05H2245/1215Y02T10/24
    • This invention provides a method of reducing nitrogen oxides in an oxygen containing exhaust stream using ethanol as a reductant for plasma-assisted selective catalytic reduction. The exhaust gas, generated from a diesel engine or other lean-burn power source, comprises nitrogen oxides, especially NO. Ozone generated from a plasma reactor is injected into the exhaust stream to convert NO to NO2 and the plasma injection is followed by the addition of ethanol. The NO2 is then reduced by contacting the exhaust stream with a dual-bed catalytic reactor comprising BaY (or NaY) and CuY zeolite catalysts in the presence of ethanol as the reductant. The plasma power density and the molar ratio of ethanol to NOx fed to the catalytic reactor are controlled as a function of the catalyst temperature for the best performance of the plasma-catalyst system. An average conversion of NOx to N2 of at least 90% is achieved over the temperature range of 200–400° C.
    • 本发明提供了使用乙醇作为等离子体辅助选择性催化还原还原剂还原含氧废气流中的氮氧化物的方法。 由柴油发动机或其他稀燃燃烧电源产生的废气包括氮氧化物,特别是NO。 从等离子体反应器产生的臭氧被注入排气流中以将NO转化为NO 2,并且等离子体注入之后是加入乙醇。 然后通过在乙醇作为还原剂的存在下使排气流与包含BaY(或NaY)和CuY沸石催化剂的双床催化反应器接触来还原NO 2。 作为催化剂温度的函数,等离子体功率密度和进料到催化反应器的乙醇与NOx的摩尔​​比被控制以达到等离子体 - 催化剂体系的最佳性能。 在200-400℃的温度范围内可获得至少90%的NO x x 2至N 2 N的平均转化率。
    • 89. 发明申请
    • Method of reducing NOx in diesel engine exhaust
    • 减少柴油机废气中的NOx的方法
    • US20050126159A1
    • 2005-06-16
    • US10734094
    • 2003-12-11
    • Byong ChoJong-Hwan Lee
    • Byong ChoJong-Hwan Lee
    • F01N3/20F01N13/00H05H1/24F01N3/00
    • F01N3/2066F01N13/009F01N2240/28F01N2250/02F01N2610/03F01N2610/08F01N2610/10H05H1/2406H05H2001/245H05H2001/2468H05H2245/1215Y02T10/24
    • A sidestream located hyper-plasma reactor having an axially discrete pattern of alternating regions of active and passive electric field along the axial direction. The hyper-plasma reactor has great efficacy in terms of ultra low power consumption and copious production of NOx converting aldehydes in the absence of NO by applying plasma power only to an air and hydrocarbon mix sidestream gas flow. Only a small fraction (1% to 2%) of plasma power is required as compared to that for a conventional plasma reactor to treat the full exhaust gas stream. The hyper-plasma reactor produces ozone which reacts subsequently with hydrocarbons to produce aldehydes (“ozonolysis”). The sidestream location of the hyper-plasma reactor allows for the full exhaust stream to bypass it, without significantly affecting the overall NOx conversion performance in the catalytic converter.
    • 位于超等离子体反应器的侧流器具有轴向方向上的主动和被动电场的交替区域的轴向离散图案。 超等离子体反应器在超低功率消耗方面具有很大的功效,并且在不存在NO的情况下通过仅将等离子体功率施加到空气和烃混合物侧流气流来大量生产NO 3 O 3转化醛。 与用于处理全部废气流的常规等离子体反应器相比,仅需要小部分(1%至2%)的等离子体功率。 超等离子体反应器产生臭氧,随后与烃反应生成醛(“臭氧分解”)。 超等离子体反应器的侧流位置允许完全排气流绕过它,而不会显着影响催化转化器中的总体转化性能。