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公开(公告)号：KR1020060007975A
公开(公告)日：2006-01-26
申请号：KR1020040057606
申请日：2004-07-23
Applicant: 현대자동차주식회사 , 학교법인 포항공과대학교
CPC classification number: G01N31/224 , G01N33/0037 , Y02A50/245 , Y10T436/175383 , G01N31/227
Abstract: A method of performing quantitative analysis of nitrogen oxides occluded in heterogeneous catalysts, comprising the following steps, each performed in parallel for multiple samples: adsorption of nitrogen oxides by multiple samples using a batch adsorption apparatus, extraction of nitrogen oxides from the occluded samples using a solvent, reduction of nitrogen oxides to nitrite ions contained in the extract using hydrazine, and detection and quantification of nitrogen oxides by colorization using a modified Griess reagent. The method of the invention requires less time and expense as compared to the conventional method, wherein the process of serial adsorption, purge, desorption, and quantification is performed repeatedly to quantify the amount of nitrogen oxides adsorbed onto multiple samples. This method enables the efficient and reliable evaluation of nitrogen oxide adsorbing catalysts, which are commonly employed in automobiles for post-treatment of exhaust gases.
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公开(公告)号：KR100656026B1
公开(公告)日：2006-12-08
申请号：KR1020050096318
申请日：2005-10-13
Applicant: 현대자동차주식회사 , 학교법인 포항공과대학교
Abstract: A method for quantitatively analyzing aromatic hydrocarbon absorbed in a catalyst is provided to promptly and reliably evaluate the characteristics and efficiency of the hydrocarbon absorbing catalyst. A method for quantitatively analyzing aromatic hydrocarbon absorbed in a catalyst includes the steps of: passing a gas including the aromatic hydrocarbon through an absorption catalyst to absorb the aromatic hydrocarbon to the absorption catalyst; obtaining a test material from the absorption catalyst and applying a solvent to the test material and shaking the test material to flow out the aromatic hydrocarbon; and measuring the light absorption degree by using an UV light absorption degree.
Abstract translation: 提供一种定量分析催化剂中吸收的芳烃的方法，以快速可靠地评估烃吸收催化剂的特性和效率。 定量分析催化剂中吸收的芳烃的方法包括以下步骤：使包含芳烃的气体通过吸收催化剂以将芳烃吸收到吸收催化剂; 从吸收催化剂获得测试材料并将溶剂施加到测试材料上并摇动测试材料以流出芳烃; 并通过使用UV光吸收度来测量光吸收程度。
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公开(公告)号：KR100622755B1
公开(公告)日：2006-09-14
申请号：KR1020040057606
申请日：2004-07-23
Applicant: 현대자동차주식회사 , 학교법인 포항공과대학교
CPC classification number: G01N31/224 , G01N33/0037 , Y02A50/245 , Y10T436/175383
Abstract: 본 발명은 불균일계 촉매에 흡착된 질소산화물의 정량 분석방법에 관한 것으로서, 더욱 상세하게는 일괄흡착장치를 사용하여 다수의 시료를 동시에 흡착시키는 단계, 용매를 이용하여 흡착된 다수의 시료를 동시에 추출하는 단계, 히드라진을 이용하여 질소산화물을 아질산이온으로 환원시키는 단계 및 개량된 그리스 시약으로 발색시켜 검출 및 정량하는 단계를 포함함으로써, 종래의 방법이 다수의 시료를 정량하기 위해서 하나의 시료를 직렬적(serial)으로 흡착, 세척, 탈착 및 정량분석하고 이런 일련의 과정을 여러 번 반복하는 방법을 사용하여 발생되었던 시간적 또는 비용적 불이익을 현저히 절감시킬 수 있을 뿐만 아니라, 최근에 배기가스의 후처리를 위해 자동차 등에 활발히 적용되는 질소산화물 흡착 촉매의 특성 및 성능을 신속하고 신뢰성 있게 평가할 수 있도록 개선된, 불균일 촉매에 흡착된 질소산화물의 정량 분석방법에 관한 것이다.
불균일계 촉매, 질소산화물, 병렬적(parallel) 정량방법-
公开(公告)号：KR1020120056602A
公开(公告)日：2012-06-04
申请号：KR1020100118223
申请日：2010-11-25
CPC classification number: F01N3/035 , F01N1/003 , F01N3/0212 , F01N3/0215 , F01N3/0217 , F01N3/0222 , F01N3/2892 , F01N13/0097 , F01N2240/20 , F01N2330/22 , F01N2470/02 , F01N2470/08 , F01N2470/12 , F01N2490/15 , Y02T10/22
Abstract: PURPOSE: An exhaust gas filtering device is provided to prevent damages of the exhaust gas filtering device by discharging the exhaust gas through a fine passage of a bypass flange if an internal pressure of a filtering unit is increased. CONSTITUTION: An exhaust gas filtering device(10) comprises a case(20), a filtering unit(30), and a flow equalizing unit(40). The filtering unit is installed inside the case and filters exhaust gas. The flow equalization unit is installed inside the filtering units. The flow equalization unit uniformly transfers the exhaust gas to the filtering unit by rotating the exhaust gas.
Abstract translation: 目的：提供一种废气过滤装置，以防止排气过滤装置通过旁通法兰的细通道排出废气，如果过滤装置的内部压力增加。 构成：排气过滤装置（10）包括壳体（20），过滤单元（30）和流量均衡单元（40）。 过滤单元安装在箱体内并过滤废气。 流量均衡单元安装在过滤单元内。 流量均衡单元通过旋转废气将废气均匀地传递到过滤单元。
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公开(公告)号：KR1020030014877A
公开(公告)日：2003-02-20
申请号：KR1020010048763
申请日：2001-08-13
Applicant: 현대자동차주식회사
Inventor： 길정기
IPC: F01N3/10
CPC classification number: Y02A50/2322 , F01N3/2803 , F01N2370/02 , F01N2570/12
Abstract: PURPOSE: Catalyst for purifying exhaust gas of a gasoline vehicle is provided to effectively purify hydrocarbon contained in exhaust gas of the gasoline vehicle by adjusting amount of CeO2 in catalyst. CONSTITUTION: A porous carrier contains Y-Al2O3, rare earth element oxide, alkali metal oxide, and noble metal for activating catalyst. An amount of CeO2 is adjusted so as to improve the purifying efficiency of hydrocarbon, which is main component of exhaust gas. CeO2 is alkali metal oxide and 15 wt.% of CeO2 is contained in the porous carrier. When the amount of CeO2 is 15 wt.%, hydrocarbon is effectively purified. The noble metal for activating catalyst is selected one or a mixture of more than two substances from the group consisting of palladium, platinum, and rhodium.
Abstract translation: 目的：提供汽油车尾气净化催化剂，通过调节催化剂中CeO2的含量，有效净化汽油车排气中所含烃。 构成：多孔载体含有Y-Al2O3，稀土元素氧化物，碱金属氧化物和活化催化剂的贵金属。 调节一定量的CeO 2以提高作为废气的主要成分的烃的净化效率。 CeO 2是碱金属氧化物，多孔载体中含有15重量％的CeO 2。 当CeO 2的量为15重量％时，有效地纯化烃。 催化剂用贵金属选自钯，铂和铑中的一种或两种以上物质的混合物。
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Patent Agency Ranking
公开(公告)号：KR1019970044416A
公开(公告)日：1997-07-26
申请号：KR1019950070032
申请日：1995-12-30
Applicant: 현대자동차주식회사
Inventor： 길정기
IPC: F01N13/10
Abstract: 본 발명은 배기다기관에 관한 것으로, 종래에는 주철재나, 스테인레스 재질로 구성하였으나, 스테인레스 재질은 원가 상승요인 되었고, 주철재는 보온효과나 촉매특성 및 배기 가스정화율등이 떨어지는 단점이 있었다. 본 발명은 이를 감안하여 구상흑연 주철 배기다기관 금형의 배기 포트구를 재설계하여, 그 배기 포트부에 스테인레스 스틸제 포트를 얹고, 구성흑연 주철 용탕을 금형에 주입하여 외관은 주철제이고, 내부 포트부만 스테인레스 재질로 구성된 배기 다기관을 제공함으로써, 스테인레스 재질로만 구성하는 것에 비해 원가를 절감하고, 주철재에 비해 보온효과, 촉매 특성 개선, 배기 정화를 향상 등의 잇점이 있다.
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公开(公告)号：KR1020030024085A
公开(公告)日：2003-03-26
申请号：KR1020010057064
申请日：2001-09-17
Applicant: 현대자동차주식회사
Inventor： 길정기
CPC classification number: B01J23/63 , B01J37/024
Abstract: PURPOSE: A catalyst for purifying exhaust gas of automobile with lean-burn engine is provided to efficiently purify nitrogen oxides that are not easily purified by existing catalysts for gasoline engine automobile under the rarefied combustion atmosphere as in the lean-burn engine automobile, and a manufacturing method thereof is provided. CONSTITUTION: The catalyst for purifying exhaust gas of automobile with lean-burn engine is characterized in that activated alumina, rare earth oxides and barium oxide (BaO) cocatalyst and precious metal catalyst activating material are respectively supported onto a ceramic or metallic porous support, wherein 30 to 50 wt.% of activated alumina is supported onto the support for 100 wt.% of the porous support, 1 to 5 wt.% of lanthanum (La) oxide, 10 to 30 wt.% of cerium (Ce) oxide and 10 to 20 wt.% of zirconium (Zr) oxide as the rare earth oxides are supported onto the support, and 5 to 20 wt.% of barium oxide (BaO) is supported onto the support for 100 wt.% of the porous support, and wherein the precious metal catalyst activating material is selected from platinum (Pt), palladium (Pd), rhodium (Rh), or a mixture thereof. The manufacturing method of the catalyst for purifying exhaust gas of automobile with lean-burn engine comprises a step (a) of mixing the materials after impregnating precious metal catalysts into activated alumina; a step (b) of preparing a slurry by adding rare earth oxides and barium oxide to the mixture and milling the materials; and a step (c) of drying and calcining the slurry coated porous support after coating the slurry prepared in the step (b) on a honeycomb monolith ceramic or metallic porous support.
Abstract translation: 目的：提供一种用稀燃燃烧发动机净化汽车废气的催化剂，用于在稀燃燃烧发动机汽车的稀薄燃烧气氛下有效地净化汽油机汽车的现有催化剂不容易净化的氮氧化物， 提供其制造方法。 构成：用于稀薄燃烧发动机的汽车净化用催化剂的特征在于活性氧化铝，稀土氧化物和氧化钡（BaO）助催化剂和贵金属催化剂活化材料分别负载在陶瓷或金属多孔载体上，其中 将30至50重量％的活性氧化铝负载在载体上100重量％的多孔载体，1至5重量％的氧化镧（La），10至30重量％的氧化铈（Ce）和 将10〜20重量％的作为稀土氧化物的锆（Zr）氧化物负载在载体上，并且将5〜20重量％的氧化钡（BaO）负载在载体上100重量％的多孔载体 ，其中所述贵金属催化剂活化材料选自铂（Pt），钯（Pd），铑（Rh）或其混合物。 利用稀燃燃烧发动机的汽车净化用废气催化剂的制造方法包括：在将贵金属催化剂浸渍到活性氧化铝中后混合材料的工序（a） 通过向混合物中加入稀土氧化物和氧化钡来制备浆料的步骤（b）并研磨材料; 以及在将步骤（b）中制备的浆料涂覆在蜂窝状整体陶瓷或金属多孔载体上之后，干燥和煅烧所述浆料涂覆的多孔载体的步骤（c）。
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公开(公告)号：KR1020020055025A
公开(公告)日：2002-07-08
申请号：KR1020000084360
申请日：2000-12-28
Applicant: 현대자동차주식회사
Inventor： 길정기
IPC: F01N3/10
CPC classification number: Y02A50/2322 , F01N11/00 , F01N2430/00 , F01N2550/02
Abstract: PURPOSE: A catalyst stressing method for testing performance of the catalyst used in a purifying device of automobile is provided to prevent air pollution by toxic gas discharged in a catalyst stressing experiment. CONSTITUTION: A poison solution comprising an engine oil is used to poison surface of catalyst(1, 2, 3) to generate a surface layer(4) which is hard to gas infiltration. The poison solution is made by mixing zinc nitrate solution and H3PO4 solution in a ratio of 1 : 0.5-1.5.
Abstract translation: 目的：提供一种用于汽车净化装置中使用的催化剂性能的催化剂应激方法，以防止在催化剂应力实验中排出的有毒气体引起的空气污染。 构成：使用包含发动机油的毒液溶解毒液（1,2,3）的表面，产生难以渗透气体的表面层（4）。 毒液通过以1：0.5-1.5的比例混合硝酸锌溶液和H 3 PO 4溶液制成。
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公开(公告)号：KR1019980055875A
公开(公告)日：1998-09-25
申请号：KR1019960075111
申请日：1996-12-28
Applicant: 현대자동차주식회사
Inventor： 길정기
IPC: C21D1/00
Abstract: 본 발명은 오스테나이트 연강의 제조 공법에 관한 것으로서, 종래의 오스테나이팅 로 과정과 솔트 베스 과정 사이에 오일 샤워 룸의 과정을 추가하여 상기 오일 샤워 룸에서 저온의 오일로 재료의 표면에 압축 잔류 응력을 생기게 함으로써, 표면 경도 및 피로 강도를 향상시킬 수 있도록 한 오스테나이트 연강의 제조 공법을 제공하고자 한 것이다.
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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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