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公开(公告)号：KR101361458B1
公开(公告)日：2014-02-12
申请号：KR1020110126307
申请日：2011-11-29
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
Abstract: 본 발명은 기존 가솔린 자동차 엔진에서 발생하는 질소산화물 (NOx) 저감 성능 개선을 위한 삼원 촉매(THREE-WAY CATALYST, TWC)-SCR 촉매 시스템의 암모니아 (NH
3 ) 생성용 삼원 촉매(THREE-WAY CATALYST, TWC) 개발에 관한 내용이다. 특히 삼원 촉매(THREE-WAY CATALYST, TWC)의 주요 구성원인 귀금속 (noble metal)의 대체 없이 기존 시스템을 유지하면서 삼원 촉매(THREE-WAY CATALYST, TWC)를 산화열처리 후 암모니아 생성량 증대 및 지지체에 따른 NH
3 생성량 변화 확인을 통한 NH
3 생성 최적 촉매 개발이 본 발명의 주요 착안점이다.-
公开(公告)号：KR1020130060028A
公开(公告)日：2013-06-07
申请号：KR1020110126307
申请日：2011-11-29
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
CPC classification number: B01J23/464 , B01J21/00 , B01J23/10 , B01J37/08
Abstract: PURPOSE: A manufacturing method of three-way catalyst producing ammonia for passive ammonia/selective catalytic reduction and a tree-way catalyst manufactured by the same are provided to be effectively used for environmentally-friendly automobiles. CONSTITUTION: A catalyst for reducing nitrogen oxide into ammonia is carried in a metal oxide carrier. A manufacturing method of the catalyst includes a step for thermally treating noble metal powder carried in the metal oxide carrier in the process of manufacturing a three-way catalyst based on an impregnation method. The noble metal is rhodium(Rh). The metal oxide support is Al2O3, SiO2, ZrO2, CeO2, C3Z1(Ce0.75Zr0.25O2), or the mixture. The noble metal carried in the carrier is thermally treated at 800-1,200 deg. C. The weight ratio of the noble metal impregnated in the metal oxide carrier is 0.01-1 weight%. [Reference numerals] (AA) NH3 productivity(ppm)
Abstract translation: 目的：提供用于产生用于被动氨/选择性催化还原的氨的三元催化剂的制造方法和由其制造的树脂催化剂，以有效地用于环境友好的汽车。 构成：用于将氮氧化物还原成氨的催化剂在金属氧化物载体中进行。 催化剂的制造方法包括在基于浸渍法的三元催化剂的制造工序中对金属氧化物载体中载持的贵金属粉末进行热处理的工序。 贵金属是铑（Rh）。 金属氧化物载体为Al2O3，SiO2，ZrO2，CeO2，C3Z1（Ce0.75Zr0.25O2）或混合物。 承载在载体上的贵金属在800-1200度热处理。 浸渍在金属氧化物载体中的贵金属的重量比为0.01-1重量％。 （标号）（AA）NH 3生产率（ppm）
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Patent Agency Ranking
公开(公告)号：KR101219348B1
公开(公告)日：2013-01-09
申请号：KR1020110088727
申请日：2011-09-01
Applicant: 현대자동차주식회사
Inventor： 정진우
IPC: B01J29/85 , B01J37/025 , B01D53/94 , B01D53/56
CPC classification number: B01J29/044 , B01D53/56 , B01D53/9427 , B01J37/0228
Abstract: PURPOSE: A nitrogen oxide reducing catalyst with enhanced low temperature activity is provided to ensure the superior activity of the catalyst regardless of temperatures by using both a copper-zeolite catalyst and an iron-zeolite catalyst. CONSTITUTION: A first catalyst layer of copper-zeolite is coated on a carrier layer. A second catalyst layer of iron-zeolite is coated on the first catalyst layer. The coated amount of the second catalyst layer is less than the coated amount of the first catalyst layer. The contents of copper and iron in the copper-zeolite and the iron-zeolite compounds are in a range between 2 and 5 weight%, respectively. The weight ratio for the coated amounts of the first catalyst layer and the second catalyst layer is 1:0.1-0.9 based on the contents of the metals. [Reference numerals] (AA) NOx removal rate(%); (BB) Iron-zeolite; (CC) Copper-zeolite; (DD) Fe+Cu physical mixture; (EE) Reaction temperature(°C)
Abstract translation: 目的：提供具有增强的低温活性的氮氧化物还原催化剂，以通过使用铜 - 沸石催化剂和铁 - 沸石催化剂来确保催化剂的优异活性，不管温度如何。 构成：将铜 - 沸石的第一催化剂层涂覆在载体层上。 铁 - 沸石的第二催化剂层涂覆在第一催化剂层上。 第二催化剂层的涂布量小于第一催化剂层的涂布量。 铜 - 沸石和铁 - 沸石化合物中的铜和铁的含量分别在2至5重量％的范围内。 基于金属的含量，第一催化剂层和第二催化剂层的涂布量的重量比为1：0.1-0.9。 （附图标记）（AA）NOx去除率（％）; （BB）铁 - 沸石; （CC）铜 - 沸石; （DD）Fe + Cu物理混合物; （EE）反应温度（℃）
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公开(公告)号：KR1020110125824A
公开(公告)日：2011-11-22
申请号：KR1020100045406
申请日：2010-05-14
Applicant: 현대자동차주식회사
Inventor： 정진우
CPC classification number: Y02T10/24 , F01N3/035 , F01N3/2066 , F01N3/28 , F01N2610/14
Abstract: PURPOSE: An exhaust system of an engine is provided to improve the efficiency of purifying nitric oxide in a selective catalyst reduction device because the amount of nitrogen dioxide generated on the rear side of a DPF is greater than that on the front side of the DPF. CONSTITUTION: An exhaust system of an engine comprises an exhaust line, a DPF(Diesel Particulate Filter), a reducing agent injection device, and a selective catalyst reduction device. The exhaust line passes the exhaust gas discharged from an engine. The DPF is arranged in the exhaust line to collect and remove particulates included in exhaust gas. The reducing agent injection device is arranged on the rear side of the DPF in the exhaust line and sprays reducing agent. The selective catalyst reduction device eliminates nitric oxide using the reducing agent and nitrogen dioxide.
Abstract translation: 目的：提供一种发动机的排气系统，以提高选择性催化剂还原装置中一氧化氮的净化效率，因为在DPF背面产生的二氧化氮的量大于DPF前侧的二氧化氮量。 构成：发动机的排气系统包括排气管，DPF（柴油颗粒过滤器），还原剂注入装置和选择性催化剂还原装置。 排气管路通过从发动机排出的废气。 DPF布置在排气管线中以收集和去除废气中包括的颗粒。 还原剂注入装置设置在排气管路中的DPF的后侧，喷雾还原剂。 选择性催化剂还原装置使用还原剂和二氧化氮除去一氧化氮。
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公开(公告)号：KR1020110062145A
公开(公告)日：2011-06-10
申请号：KR1020090118737
申请日：2009-12-02
CPC classification number: B01J29/69 , B01D53/9409 , B01J37/08 , B01J37/12
Abstract: PURPOSE: A catalyst for selective reduction of nitric oxide within exhaust gas containing rare earth metal and a manufacturing method thereof are provided to eliminate nitric oxide within exhaust gas of hydro-thermal treatment former and post treatment in the high temperature by using rare earth metal as co-catalyst and by using Mn and Fe as active component and zeolite as carrier. CONSTITUTION: The catalyst for the selective reduction of the nitric oxide within the exhaust gas containing the rare earth metal is immersed in the zeolite carrier. The catalyst contains more than one kind of manganic compound, and the iron compound selected from the rare earth metal. The co-catalyst component contains 4~40 weight% based of the standard of catalyst of total 100 weight of the rare earth metal and manganese and iron. The manganese contains 10~60 weight%. The iron contains 4~40 weight%. The zeolite is included in 20~200 parts by weight. The catalyst has the reduction activity capability of the nitric oxide of 80~100% in the reaction temperature of 200~400 °C after the hydro-thermal treatment. The reduction reaction of catalyst uses the element (Urea) or the ammonia (NH3) as the reducing agent.
Abstract translation: 目的：提供一种用于选择性还原含稀土金属废气中的一氧化氮的催化剂及其制造方法，其用于通过使用稀土金属作为水热处理剂的排气中的一氧化氮和高温后处理 助催化剂，以Mn和Fe为活性组分，沸石为载体。 构成：将含有稀土金属的废气中的一氧化氮选择性还原的催化剂浸入沸石载体中。 该催化剂含有一种以上的锰化合物和选自稀土金属的铁化合物。 助催化剂组分含有4〜40重量％的标准催化剂，共100重量份的稀土金属和锰和铁。 锰含量为10〜60重量％。 铁含量为4〜40％。 沸石的含量为20〜200重量份。 在热处理后，催化剂的反应温度为200〜400℃，一氧化氮的还原活性为80〜100％。 催化剂的还原反应使用元素（尿素）或氨（NH 3）作为还原剂。
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公开(公告)号：KR100969378B1
公开(公告)日：2010-07-09
申请号：KR1020080029862
申请日：2008-03-31
Applicant: 현대자동차주식회사
CPC classification number: F01N3/2066 , B01D53/9418 , B01D53/944 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2258/012 , B01J23/42 , B01J23/44 , B01J29/072 , B01J35/0006 , F01N3/035 , F01N13/009 , F01N2250/02 , F01N2510/0682 , Y02A50/2341 , Y02T10/24
Abstract: 본 발명은 배기 가스 내에 포함되어 있는 탄화수소(Hydrocarbon; HC), 일산화탄소(Carbon Monoxide; CO), 입자상 물질(Particulate Material; PM), 그리고 질소산화물(Nitrogen Oxide; NO
x )을 저감시키는 배기 가스 정화 장치에 관한 것이다.
본 발명의 실시예에 따른 배기 가스 정화 장치는, 제1 디젤산화촉매(Diesel Oxidation Catalyst; DOC)를 이용하여 배기 가스 내의 탄화수소(Hydrocarbon; HC), 일산화탄소(Carbon Monoxide; CO)를 산화시키고, 입자상 물질(Particulate Material; PM)을 포집하고 재생하는 매연저감(Catalyzed Particulate Filter; CPF) 장치; 상기 CPF 장치의 후단에 설치되어 있으며, 1차 산화된 배기가스를 제2 DOC를 이용하여 HC와 CO를 2차적으로 산화시키고, 제2 DOC를 이용하여 일산화질소(Nitrogen Monoxide; NO)를 이산화질소(Nitrogen Dioxide; NO
2 )로 산화시키는 디젤산화촉매(DOC) 장치; 상기 DOC 장치 후단에 설치되어 있으며 상기 DOC 장치에서 2차 산화된 배기 가스에 환원제를 분사하는 분사 노즐; 그리고 상기 분사 노즐의 후단에 설치되어 있으며, 상기 DOC 장치에서 발생된 NO
2 와 상기 환원제를 이용하여 배기 가스 내의 질소산화물(Nitrogen Oxide; NO
x )을 질소 기체(N
2 )로 환원시키는 선택적 촉매 환원(Selective Catalytic Reduction; SCR) 장치;를 포함할 수 있다.
디젤산화촉매(DOC) 장치, 매연저감(Catalyzed Particulate Filter; CPF) 장치, 선택적 촉매 환원(Selective Catalytic Reduction; SCR) 장치-
公开(公告)号：KR1020090061406A
公开(公告)日：2009-06-16
申请号：KR1020070128412
申请日：2007-12-11
Applicant: 현대자동차주식회사
Inventor： 정진우
IPC: B01D39/00
Abstract: A method for manufacturing a catalyst-integrated metal filter using electrophoretic deposition is provided to coat a catalyst on the metal filter stably by minimizing increase of pressure and low coating strength etc. A method for manufacturing a catalyst-integrated metal filter using electrophoretic deposition comprises the following steps of: depositing aluminum on a metal plate with an electrophoretic deposition method; converting aluminum into aluminum oxide with through oxidation; dipping noble metals in a alumina porous layer by dipping an alumina-metal filter in a noble metal solution; and drying and plasticizing the dipped alumina-metal filter at 120°C for 12 hours.
Abstract translation: 提供一种使用电泳沉积制造催化剂一体型金属过滤器的方法，通过最小化压力增加和低涂层强度等来稳定地涂覆金属过滤器上的催化剂。使用电泳沉积制造催化剂一体化金属过滤器的方法包括 以下步骤：用电泳沉积方法将铝沉积在金属板上; 通过氧化将铝转化成氧化铝; 通过将氧化铝 - 金属过滤器浸渍在贵金属溶液中来将贵金属浸入氧化铝多孔层中; 并将浸渍的氧化铝 - 金属过滤器在120℃下干燥和塑化12小时。
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