公开(公告)号：KR100931106B1

公开(公告)日：2009-12-10

申请号：KR1020080047455

申请日：2008-05-22

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: B01J21/06 ,  B01J23/34 ,  B01J29/064

CPC classification number: B01J35/0006 ,  B01D53/9418 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/2092 ,  B01D2255/502 ,  B01D2255/504 ,  B01D2258/012 ,  B01J21/063 ,  B01J23/34 ,  B01J29/072 ,  B01J29/40 ,  B01J29/46 ,  B01J29/7007 ,  B01J29/80 ,  B01J37/0036 ,  B01J37/0215 ,  B01J37/0246

Abstract: 본 발명은 촉매입구부에 Mn/TiO
2 을 코팅하고, 촉매 출구부에 Fe-제오라이트/ZSM를 길이방향으로 반씩 적용하고, 워시코트 제조시 세륨카보네이트를 사용하여 워시코트를 만든 후 코팅하게 되면, 소성시 분해에 의한 기공이 워시코트층에 형성됨으로써 촉매의 활성표면적을 향상시키고 촉매의 성능 및 효율을 증대시킬 수 있도록 한 선택적 환원촉매 및 그 제조방법을 제공하는데 그 목적이 있다.
이를 위해, 본 발명은 촉매 입구부에 Mn/TiO
2 를 코팅하고, 촉매 출구부에 Fe-제오라이트/ZSM을 코팅하고, 상기 Mn/TiO
2 와 Fe-제오라이트/ZSM은 촉매의 길이방향으로 반씩 코팅되는 것을 특징으로 하는 선택적 환원 촉매를 제공한다.
선택적 환원 촉매, 활성표면적, 코팅

Abstract translation: 本发明的特征在于选择性还原催化剂，其中一半催化剂（入口）涂覆有Mn / TiO 2，另一半催化剂（出口）沿着基本纵向方向涂覆有Fe-沸石/ ZSM，涂层 通过添加碳酸铈来制备层，由此在修补基面涂层中煅烧过程中形成由分解引起的孔并且增加催化剂的活性表面积和性能以及效率。 该特征还在于制备选择性还原催化剂的方法。

公开(公告)号：KR1020090121513A

公开(公告)日：2009-11-26

申请号：KR1020080047455

申请日：2008-05-22

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: B01J21/06 ,  B01J23/34 ,  B01J29/064

CPC classification number: B01J35/0006 ,  B01D53/9418 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/2065 ,  B01D2255/20707 ,  B01D2255/2073 ,  B01D2255/20738 ,  B01D2255/2092 ,  B01D2255/502 ,  B01D2255/504 ,  B01D2258/012 ,  B01J21/063 ,  B01J23/34 ,  B01J29/072 ,  B01J29/40 ,  B01J29/46 ,  B01J29/7007 ,  B01J29/80 ,  B01J37/0036 ,  B01J37/0215 ,  B01J37/0246

Abstract: PURPOSE: A selective catalytic reduction catalyst and a manufacturing method thereof are provided to increase efficiency and performance of a catalyst, and to increase an active surface area of the catalyst. CONSTITUTION: A catalyst inlet is coated with Mn/TiO2. A catalyst outlet is coated with Fe - zeolite / ZSM. The Mn/TiO2(11) and with Fe - zeolite / ZSM(12) are applied to a longitudinal direction of a catalyst. A manufacturing method of a selective catalytic reduction catalyst(10) includes the following steps of: producing first catalyst slurry containing Mn/TiO2; manufacturing second catalyst slurry containing Fe - zeolite / ZSM; processing a ceramic monolith carrier in the first catalyst slurry; processing the ceramic monolith carrier in the second catalyst slurry; and drying and sintering the catalyst at a constant temperature for the fixed time.

Abstract translation: 目的：提供选择性催化还原催化剂及其制备方法以提高催化剂的效率和性能，并增加催化剂的活性表面积。 构成：催化剂入口涂有Mn / TiO2。 催化剂出口涂有Fe - 沸石/ ZSM。 将Mn / TiO2（11）和Fe-沸石/ ZSM（12）施加到催化剂的纵向。 选择性催化还原催化剂（10）的制造方法包括以下步骤：制备含有Mn / TiO 2的第一催化剂浆料; 制备含有Fe-沸石/ ZSM的第二催化剂浆料; 在第一催化剂浆料中加工陶瓷整料载体; 在第二催化剂浆料中加工陶瓷整料载体; 并在恒定温度下干燥和烧结催化剂固定时间。

公开(公告)号：KR100461112B1

公开(公告)日：2004-12-13

申请号：KR1020020029619

申请日：2002-05-28

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: B01J23/63 ,  B01J23/46

Abstract: PURPOSE: A preparation method of high performance Pa-Rh three way catalyst having low palladium content is provided to obtain particularly excellent purification effect of nitrogen oxides even when small quantities of palladium and rhodium are used and substantially reduce content of palladium and rhodium. CONSTITUTION: In a preparation method of Pa-Rh three way catalyst comprising a step (a) of impregnating alumina with palladium solution, and reducing the alumina impregnated with the palladium solution by thermal fixation; a step (b) of impregnating alumina with rhodium solution, and reducing the alumina impregnated with the rhodium solution using reducing agent; a step (c) of obtaining catalyst slurry by reacting the reduction resulting material with cerium dioxide; and a step (d) of preparing palladium three way catalyst by coating the catalyst slurry on a ceramic monolith support, the preparation method of high performance Pa-Rh three way catalyst having low palladium content is characterized in that the step (c) comprises the processes of preparing first catalyst slurry by 30 to 40 g/L of the cerium dioxide and cerium-zirconium complex oxide (Ce·Zr)O2 to the total apparent volume of the support, adding 5 to 7 g/L praseodymium dioxide to the total apparent volume of the support and adding a mixed solution of palladium and rhodium to the mixture; and additionally adding 40 to 45 g/L of (LaCe)(FeCo)O3 or (LaSr)(FeCo)O3 that is a metal oxide (perovskite) to the prepared first catalyst slurry so that the catalyst slurry of the step (c) is prepared.

Abstract translation: 目的：提供一种钯含量低的高性能Pa-Rh三元催化剂的制备方法，即使使用少量的钯和铑，也大大降低了钯和铑的含量，以获得特别优异的氮氧化物净化效果。 一种Pa-Rh三元催化剂的制备方法，该方法包括用钯溶液浸渍氧化铝的步骤（a），并通过热固定还原浸渍有钯溶液的氧化铝; 用铑溶液浸渍氧化铝并用还原剂还原浸渍有铑溶液的氧化铝的步骤（b）; 通过使所述还原所得材料与二氧化铈反应来获得催化剂浆料的步骤（c）; 和步骤（d），通过将催化剂浆料涂覆在陶瓷整料载体上来制备钯三元催化剂，具有低钯含量的高性能Pa-Rh三元催化剂的制备方法的特征在于，步骤（c）包含 将30至40g / L二氧化铈和铈 - 锆复合氧化物（Ce和Zr）O 2制备成第一催化剂浆料至载体总表观体积的步骤，将5-7g / L二氧化镨加入 所述载体的总表观体积并向所述混合物中加入钯和铑的混合溶液; 并且向所制备的第一催化剂浆料中另外添加40至45g / L的（LaCe）（FeCo）O 3或（LaSr）（FeCo）O 3（金属氧化物（钙钛矿）），使得步骤（c） 准备好了。

公开(公告)号：KR100410942B1

公开(公告)日：2003-12-18

申请号：KR1020010045672

申请日：2001-07-28

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: B01J23/63

Abstract: PURPOSE: Provided is an improved method for fabricating a porous palladium ternary catalyst capable of effectively purifying exhaust gas and excellent in denoxification and thermal endurance. CONSTITUTION: The fabrication method comprises the steps of (a) impregnating palladium solution into alumina and reducing the palladium particles, (b) feeding 30-40 g/L of an oxide mixture solution composed of cerium oxide (CeO2) and cerium-zirconium complex oxide with a ratio in a range of 15:85-30:70 to the palladium solution, (c) adding 5-7 g/L of praseodymium oxide (PrO2), and 10-15g/L of cerium carbonate to the solution obtained during the step (b), thereby obtaining a liquid mixture, wherein L is the apparent volume of a ceramic monolith substrate, (d) adjusting pH of the liquid mixture to 4.5 or lower, (e) ball milling the liquid mixture to obtain catalyst slurry, (f) dipping ceramic monolith substrates to the catalyst slurry so that the catalyst slurry is washcoated on the ceramic monolith substrates, and (g) drying and baking the substrates.

Abstract translation: 目的：提供一种改进的制备能够有效净化废气并具有优良的耐氧化性和耐热性的多孔钯三元催化剂的方法。 （a）将钯溶液浸渍到氧化铝中并还原钯颗粒，（b）将30-40g / L的由氧化铈（CeO 2）和铈 - 锆复合物组成的氧化物混合物溶液 （c）将5-7g / L的氧化镨（PrO 2）和10-15g / L的碳酸铈加入到所获得的溶液中，所述溶液的比例为15：85-30：70 在步骤（b）中，由此获得液体混合物，其中L是陶瓷整料基材的表观体积，（d）将液体混合物的pH调节至4.5或更低，（e）球磨该液体混合物以获得催化剂 （f）将陶瓷单块基材浸渍到催化剂浆料中，使得催化剂浆料在陶瓷单块基材上进行洗涂，并（g）干燥并烘烤基材。

公开(公告)号：KR1020030091537A

公开(公告)日：2003-12-03

申请号：KR1020020029619

申请日：2002-05-28

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: B01J23/63 ,  B01J23/46

CPC classification number: B01J37/0009 ,  B01J23/894 ,  B01J23/8946 ,  B01J37/024 ,  B01J37/16

Abstract: PURPOSE: A preparation method of high performance Pa-Rh three way catalyst having low palladium content is provided to obtain particularly excellent purification effect of nitrogen oxides even when small quantities of palladium and rhodium are used and substantially reduce content of palladium and rhodium. CONSTITUTION: In a preparation method of Pa-Rh three way catalyst comprising a step (a) of impregnating alumina with palladium solution, and reducing the alumina impregnated with the palladium solution by thermal fixation; a step (b) of impregnating alumina with rhodium solution, and reducing the alumina impregnated with the rhodium solution using reducing agent; a step (c) of obtaining catalyst slurry by reacting the reduction resulting material with cerium dioxide; and a step (d) of preparing palladium three way catalyst by coating the catalyst slurry on a ceramic monolith support, the preparation method of high performance Pa-Rh three way catalyst having low palladium content is characterized in that the step (c) comprises the processes of preparing first catalyst slurry by 30 to 40 g/L of the cerium dioxide and cerium-zirconium complex oxide (Ce·Zr)O2 to the total apparent volume of the support, adding 5 to 7 g/L praseodymium dioxide to the total apparent volume of the support and adding a mixed solution of palladium and rhodium to the mixture; and additionally adding 40 to 45 g/L of (LaCe)(FeCo)O3 or (LaSr)(FeCo)O3 that is a metal oxide (perovskite) to the prepared first catalyst slurry so that the catalyst slurry of the step (c) is prepared.

Abstract translation: 目的：提供具有低钯含量的高性能Pa-Rh三元催化剂的制备方法，即使使用少量的钯和铑，并且显着降低钯和铑的含量，也可获得氮氧化物的特别优异的净化效果。 构成：在包含用钯溶液浸渍氧化铝的工序（a）的Pa-Rh三元催化剂的制备方法中，通过热固定法还原浸渍有钯溶液的氧化铝; 用铑溶液浸渍氧化铝的步骤（b），还原剂还原浸渍有铑溶液的氧化铝; 通过使还原产生的材料与二氧化铈反应获得催化剂浆料的步骤（c）; 以及通过将催化剂浆料涂布在陶瓷整料载体上制备钯三元催化剂的步骤（d），具有低钯含量的高性能Pa-Rh三元催化剂的制备方法的特征在于步骤（c）包括 将二氧化铈和铈 - 锆复合氧化物（Ce·Zr）O 2的二氧化铈和铈 - 锆复合氧化物（Ce·Zr）O2配制成30〜40g / L的第一催化剂浆料与载体的总表观体积相加的方法，向总量中加入5〜7g / L的二氧化镨 支撑体的表观体积，并向混合物中加入钯和铑的混合溶液; 另外向制备的第一催化剂浆料另外添加40〜45g / L的作为金属氧化物（钙钛矿）的（LaCe）（FeCo）O 3或（LaSr）（FeCo）O 3），使得步骤（c）的催化剂浆料 准备好了

公开(公告)号：KR100187139B1

公开(公告)日：1999-04-15

申请号：KR1019960045366

申请日：1996-10-11

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: B01D53/34

Abstract: 본 발명은 대기 유해성분 정화장치에 관한 것으로서, 자동차 엔진(10)의 배기다기관(12)에 결합된 촉매변환장치(20)의 후단 또는 전단에 연결되는 자동차 배기 파이프(14)의 소정길이에 걸쳐 파이프의 표면에 촉매재(19)를 코팅하고, 촉매재가 코팅된 파이프(14) 표면을 따라 외부 대기의 유로를 형성하는 파이프 커버(18)를 설치하여서 구성된다. 본 발명에 의하면 자동차가 주행 중에 지표면의 대기가 파이프 커버(18)와 배기파이프(14)의 표면 사이에 형성된 대기 유로를 따라 흐르게 되고, 이 때 배기파이프의 표면에 코팅된 촉매재(19)의 기능에 의해 대기중의 유해성분인 HC, CO, NOx, O3 등을 산화 또는 환원시켜 대기를 정화시켜 줄 수 있는 효과가 있다.

公开(公告)号：KR1019980026799A

公开(公告)日：1998-07-15

申请号：KR1019960045364

申请日：1996-10-11

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: B01J23/10

Abstract: 본 발명은 팔라듐(Pd) 삼원촉매의 제조방법에 관한 것으로서, 더욱 상세하게는 팔라듐 용액을 알루미나에 함침한 후 환원시키고 여기에 산화바륨 등으로 이루어진 혼합용액을 첨가하고 pH를 조절하여 반응시킨 후 밀링하고 촉매물질에 세라믹 모노리스(ceramic monolith)를 담가서 코팅한 다음 건조 및 소성함으로써 종래의 백금, 로듐 및 팔라듐으로 이루어진 삼원 촉매를 대신하여 팔라듐만으로 이루어져 비용을 절감시키고 우수하게 자동차 배기가스의 유해물질을 정화시킬 수 있는 팔라듐 삼원촉매의 제조방법에 관한 것이다.

公开(公告)号：KR2019970041693U

公开(公告)日：1997-07-29

申请号：KR2019950055689

申请日：1995-12-30

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: F03D9/00

Abstract: 본고안은풍량을이용한전기발생장치에대한것으로, 라디에이터(2)전방에차량의전면으로유입하는풍량에의해로터에연결된팬(5)을회전시켜전압을발생하는발전기(4)를설치하고, 발전기(4)로부터발생된전압을축전지(6)에충전하거나, 가종전기장치(7)에공급하여종래의교류발전기를통해서만축전지를충전하거나차량의각종전기장치에전압을공급하도록한 구성을개선한것으로, 원가절감과연비향상의효과를달성할수 있다.

公开(公告)号：KR2019970040529U

公开(公告)日：1997-07-29

申请号：KR2019950055686

申请日：1995-12-30

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: F01N3/28

Abstract: 본고안은종래와같은촉매변환기의구조에서는촉매의일정수명이경과한후 또는촉매의파손으로교체의필요시촉매변환기전체를한꺼번에교체하여야했으므로유지비가많이들었으며, 폐용된촉매변환기를해체한후 개별적으로처리하여야하는번거로움뿐만아니라자원의낭비를가져오는문제점이있었는데, 본고안은전술한문제점을개선하기위하여안출된것으로서촉매변환기의구조를촉매담지매트만을교체할수 있는구조를전환함으로써촉매변화기의유지비절감은물론폐용된촉매변환기처리의간편성보장과자원재활용의효과를가져오는자동차의교환용촉매변환기를제공함을목적으로하며, 그기술적인수단으로서촉매담지매트를내장하며좌우양단개구면에봉합수단을용접하여일체형으로조립구성하는촉매변환기에있어서; 양단에외향된연장편(22)을구비한원통형상중공체로서연장편(22)의적소에나합공(40)을형성한변환기본체(20)와, 도우넛형상으로적소에나합공(41)을관통형성한가스켓(30)과, 상기연장편(22)과대응되는결합부(27)에나합공(42)을형성한결합부(27)를외주면에구비한커버덮개(25)를포함하는구성으로이루어진것을특징으로한다.

公开(公告)号：KR2019970040521U

公开(公告)日：1997-07-29

申请号：KR2019950052426

申请日：1995-12-29

Applicant: 현대자동차주식회사

Inventor： 여권구

IPC: F01N3/28

Abstract: 1. 청구범위에기재된고안이속한기술분야. 차량용촉매정화장치에관한분야. 2. 고안이해결하려고하는기술적과제. 종래의촉매정화기는입구파이프의직경이촉매의직경보다작으므로플로우디스트리뷰터(flow distributior)가균일하지못하고, 이에따라촉매의수명단축과더불어정화효율이크게떨어지게되는폐단이따랐던것임. 3. 고안의해결방법의요지. 본고안은촉매정화기의입구파이프에회전이용이한스월메이커(Swirl maker)를설치하여배기가스를분산시켜공급되게함으로써촉매의효율을극대화시킬수있도록한 것임. 4 고안의중요한용도. 차량에창착사용되는것임.