KR100489135B1 - Mat for catalytic converter - Google Patents

Mat for catalytic converter Download PDF

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Publication number
KR100489135B1
KR100489135B1 KR10-2002-0052383A KR20020052383A KR100489135B1 KR 100489135 B1 KR100489135 B1 KR 100489135B1 KR 20020052383 A KR20020052383 A KR 20020052383A KR 100489135 B1 KR100489135 B1 KR 100489135B1
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South Korea
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mat
catalyst
catalyst carrier
component
catalytic converter
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KR10-2002-0052383A
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Korean (ko)
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KR20040020701A (en
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윤영기
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현대자동차주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20707—Titanium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20723—Vanadium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/2073—Manganese
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20746—Cobalt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20753—Nickel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20784—Chromium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20792—Zinc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B01D2255/504—ZSM 5 zeolites

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • General Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

본 발명은 촉매컨버터의 촉매담체를 지지하며 보호하기 위한 촉매담체 매트의 구성성분에 포함된 바인더가 배기가스의 열에 반응되면서 탄화수소가 발생되는 것을 억제하기 위한 촉매담체의 매트에 관한 것으로,The present invention relates to a catalyst carrier mat for suppressing the generation of hydrocarbons while the binder contained in the components of the catalyst carrier mat for supporting and protecting the catalyst carrier of the catalytic converter reacts with the heat of the exhaust gas.

캔의 내부에 촉매담체가 형성되어지되, 외부충격으로부터 촉매담체가 보호되도록 유리섬유, 버뮤칼라이트, 바인더 등의 성분으로 형성되는 매트가 상기 촉매담체와 캔 사이에 개재되는 촉매컨버터에 있어서,In the catalyst converter in which a catalyst carrier is formed inside the can, and a mat formed of a component such as glass fiber, vermucalite, binder, etc. is provided between the catalyst carrier and the can so as to protect the catalyst carrier from external impact.

상기한 매트의 구성성분이 배기가스와 작용하여 탄화수소 및 일산화탄소 등이 발생되어지는 것을 억제하기 위한 촉매성분입자가 상기 매트의 제조과정에서 추가되는 것을 특징으로 한다.Particles of the mat is characterized in that the catalyst component particles for suppressing the generation of hydrocarbons, carbon monoxide and the like by working with the exhaust gas is added in the manufacturing process of the mat.

Description

촉매컨버터의 매트{Mat for catalytic converter}Mat for catalytic converter

본 발명은 촉매컨버터의 매트에 관한 것으로서, 보다 상세하게는 촉매컨버터의 촉매담체를 지지하며 보호하기 위한 촉매담체 매트의 구성성분에 포함된 바인더가 배기가스의 열에 반응되면서 탄화수소가 발생되는 것을 억제하기 위한 촉매컨버터의 매트에 관한 것이다.The present invention relates to a mat of a catalytic converter, and more particularly, to suppress the generation of hydrocarbons while the binder contained in the components of the catalyst carrier mat for supporting and protecting the catalyst carrier of the catalytic converter reacts with the heat of the exhaust gas. It relates to a mat of the catalytic converter for.

일반적으로 엔진에서 배기 매니폴드를 통해 배출되는 배기가스는 배기 파이프를 거쳐 촉매컨버터(Catalytic converter)로 도입되어 정화되고, 머플러를 통과하면서 소음이 감쇄된 후 배기파이프를 통해 대기 중으로 방출된다. 상기한 촉매컨버터는 매연여과장치(DTF, Diesel Particulate Filter)의 일종으로 배출가스에 포함되어 있는 오염물질을 처리하는 역할을 하는 것이다. 그리고 상기한 촉매컨버터 내부에는 배기가스에 포함된 입자상 물질(PM)을 포집하기 위한 촉매담체가 형성된 것이다.In general, the exhaust gas discharged from the engine through the exhaust manifold is introduced into the catalytic converter through the exhaust pipe to be purified, and the noise is attenuated while passing through the muffler and then discharged into the atmosphere through the exhaust pipe. The catalytic converter is a kind of a diesel particulate filter (DTF) that serves to process contaminants contained in the exhaust gas. In addition, a catalyst carrier for trapping particulate matter (PM) contained in the exhaust gas is formed in the catalytic converter.

한편, 상기한 촉매담체의 재질은 내열성이 높은 마그네슘-알미늄 실리케이트가 주성분이고, 그 형상은 수많은 벌집형 통로가 형성되어 그 사이로 배기가스가 통과되도록 구성된다. 그런데 상기한 세라믹 허니컴형 촉매담체는 진동이나 충격에 약하기 때문에 캔과 촉매담체에는 금속섬유 등과 같은 탄성물질의 서포트인 매트가 형성된다. 이 탄성물질의 매트는 자동차 운전 중 촉매담체와 캔의 팽창계수를 보상해주며 기계적 응력을 흡수하게 된다.On the other hand, the material of the catalyst carrier is a high heat-resistant magnesium-aluminum silicate, the main component, the shape is composed of a number of honeycomb passages are formed so that the exhaust gas passes therebetween. However, since the ceramic honeycomb catalyst carrier is weak to vibration and impact, the can and the catalyst carrier are formed with a mat, which is a support of an elastic material such as a metal fiber. The mat of elastic material compensates for the expansion coefficient of catalyst carriers and cans while driving a car and absorbs mechanical stress.

도 3은 일반적인 촉매담체의 구조를 설명하기 위한 도면으로서, 촉매컨버터(10)의 캔(11) 내부에는 허니컴형의 촉매담체(13)가 수용되고, 상기 캔(11)과 촉매담체(13)의 사이에는 탄성물질인 매트(12)가 개재된다. 특히, 상기한 매트(12)는 팽창성 매트(12a)와 비팽창성 매트(12b)로 구분되어, 촉매담체(13)의 전후부분은 상기 비팽창성 매트(12b)로 감싸도록 구성된다.FIG. 3 is a view for explaining the structure of a general catalyst carrier. A honeycomb catalyst carrier 13 is accommodated in the can 11 of the catalytic converter 10, and the can 11 and the catalyst carrier 13 are shown in FIG. Between the mat 12 is an elastic material is interposed. In particular, the mat 12 is divided into an expandable mat 12a and a non-expandable mat 12b, and the front and rear portions of the catalyst carrier 13 are configured to surround the non-expandable mat 12b.

그런데 상기한 비팽창성 매트의 구성성분 중에서 버뮤칼라이트 및 실리카/알루미나 파이버의 성형성을 향상시키기 위해 첨가되는 바인더에 의해서 상기한 촉매컨버터의 장착 초기에는 악취가 발생된다. 이 중 바인더 성분은 보통 아크릴 레이트(Acrylic Latex Binder) 종류로서 150℃ 이상에서 열분해되어 탄화수소 성분으로 배출된다. 이 탄화수소가 악취를 내게되는 성분으로 촉매담체에 흡착되었다가 촉매가 활성화되면 초기에 배출가스의 농도를 증가시키게 됨은 물론 악취를 유발하게 되는 문제점이 있었다.However, odor is generated at the initial stage of the installation of the catalytic converter by the binder added to improve the formability of the Bermucalite and silica / alumina fibers among the components of the non-expandable mat. Among these, the binder component is usually an acrylic acrylate (Acrylic Latex Binder) type and is pyrolyzed at 150 ° C. or higher to be discharged as a hydrocarbon component. When the hydrocarbon is adsorbed on the catalyst carrier as a odorous component and the catalyst is activated, the concentration of the exhaust gas is initially increased as well as causing odor.

또한, 엔진의 운전영역이 고회전/고부하 운전조건에서의 고압, 고용량의 배출가스에서는 매트 부분으로 유입되는 배출가스가 촉매담체를 거치지 않고 그대로 배출되어 촉매의 정화성능에 악영향을 미치게 되는 문제점이 있었다.In addition, when the operating region of the engine is a high-pressure, high-capacity exhaust gas under high rotation / high load operation conditions, the exhaust gas flowing into the mat portion is discharged as it is without passing through the catalyst carrier, which adversely affects the purification performance of the catalyst.

따라서 본 발명은 상기와 같은 문제점을 해결하기 위해서 안출된 것으로서, 촉매컨버터의 촉매담체를 지지하며 보호하기 위한 촉매담체 매트의 구성성분에 포함된 바인더가 배기가스의 열에 반응되면서 탄화수소가 발생되는 것을 억제하기 위한 촉매컨버터의 매트를 제공하는 데 목적이 있다.Accordingly, the present invention has been made to solve the above problems, and suppresses the generation of hydrocarbons while the binder contained in the components of the catalyst carrier mat for supporting and protecting the catalyst carrier of the catalytic converter reacts with the heat of the exhaust gas. An object of the present invention is to provide a mat of a catalytic converter.

본 발명은 상기와 같은 목적을 달성하기 위한 수단으로서,The present invention as a means for achieving the above object,

캔의 내부에 촉매담체가 형성되어지되, 외부충격으로부터 촉매담체가 보호되도록 유리섬유, 버뮤칼라이트, 바인더 등의 성분으로 형성되는 매트가 상기 촉매담체와 캔 사이에 개재되는 촉매컨버터에 있어서,In the catalyst converter in which a catalyst carrier is formed inside the can, and a mat formed of a component such as glass fiber, vermucalite, binder, etc. is provided between the catalyst carrier and the can so as to protect the catalyst carrier from external impact.

상기한 매트의 구성성분이 배기가스와 작용하여 탄화수소 및 일산화탄소 등이 발생되어지는 것을 억제하기 위한 촉매성분입자가 상기 매트의 제조과정에서 추가되는 것을 특징으로 한다.Particles of the mat is characterized in that the catalyst component particles for suppressing the generation of hydrocarbons, carbon monoxide and the like by working with the exhaust gas is added in the manufacturing process of the mat.

이하, 본 발명에 의한 구성 및 작용을 첨부한 도면과 함께 상세하게 설명하면 다음과 같다.Hereinafter, the configuration and operation according to the present invention will be described in detail with the accompanying drawings.

도 1은 본 발명에 의해 형성되는 촉매컨버터의 단면도이며, 도 2는 본 발명에 의한 촉매성분입자가 도포된 상태를 확대도시한 도면이다.1 is a cross-sectional view of a catalytic converter formed by the present invention, Figure 2 is an enlarged view showing a state in which the catalyst component particles according to the present invention is applied.

상기한 도면 중에 표시되는 일부의 도면부호 20은 본 발명에 의해 형성되는 매트를 지시하는 것이며, 도면부호 30은 본 발명에 의한 촉매입자성분을 지시하는 것이다.Some of the numerals 20 shown in the above drawings indicate the mat formed by the present invention, and reference numeral 30 indicates the catalyst particle component according to the present invention.

상기한 촉매컨버터(20)는 종래의 일반적인 촉매컨버터와 같이 캔(21)의 내부에 촉매담체(22)가 형성되고, 상기 촉매담체(22)와 캔(21) 사이의 공간에는 매트(23)가 개재된다. 상기 매트(23)는 촉매담체(22)의 중간부를 보호하는 팽창성 매트(23a)와 전후방에 위치되는 비팽창성 매트(23b)로 구분된다.The catalytic converter 20 has a catalyst carrier 22 formed inside the can 21 as in the conventional general catalytic converter, and a mat 23 in the space between the catalyst carrier 22 and the can 21. Is interposed. The mat 23 is divided into an expandable mat 23a that protects the middle portion of the catalyst carrier 22 and a non-expandable mat 23b positioned in front and rear.

한편, 상기한 비팽창성 매트(23b)는 종래기술의 경우와 같이 유리섬유, 버뮤칼라이트, 바인더 등의 성분이 기본으로 형성되고, 상기 바인더 성분이 배기가스의 열과 화학반응되어 탄화수소나 일산화탄소 등의 악취물질이 생성되는 것을 억제하기 위한 촉매성분입자(30)가 첨가된다. 본 발명에 의한 상기 촉매성분입자(30)는 후술되는 바와 같이 크게 2가지 경우의 조성물로 형성된다.On the other hand, the non-expandable mat (23b) is formed of a component such as glass fiber, vermucalite, binder, etc. as in the case of the prior art, the binder component is chemically reacted with the heat of the exhaust gas, such as hydrocarbons and carbon monoxide Catalyst component particles 30 for suppressing the generation of odorous substances are added. The catalyst component particles 30 according to the present invention are largely formed of a composition in two cases as described below.

첫째, 상기한 촉매성분입자(30)는 차콜(Charcoal) 또는 제올라이트(ZSM-5) 또는 호프칼라이트 등의 탄화수소에 대한 저온흡착능력을 발휘할 수 있는 물질로 이루어진다. 상기 첨가물은 보통 상온 ~ 150℃에서 발생하는 탄화수소를 효과적으로 흡착하였다가 그 이상의 온도에서 흡착된 탄화수소를 분해하여 배출하거나 이산화탄소 등으로 산화시키는 촉매작용을 일으켜 시동초기 탄화수소의 배출을 억제하기 위한 것이다.First, the catalyst component particles 30 are made of a material capable of exhibiting low temperature adsorption capacity for hydrocarbons such as charcoal, zeolite (ZSM-5), or hopcalite. The additives are for effectively suppressing the emission of initial hydrocarbons by effectively adsorbing hydrocarbons generally generated at room temperature to 150 ° C and then decomposing and releasing the adsorbed hydrocarbons at higher temperatures or oxidizing carbon dioxide.

둘째, Co, Ni, Fe 금속중에서 2가지 이상을 주성분으로 하여 형성된다. 특히, 이 경우에는 Cr, Zn, Mn, V, Ti, Cu 금속중에서 어느 한가지 이상의 성분을 조성분으로 하는 복합금속산화물인 것이 더 바람직하다.Second, it is formed of two or more of Co, Ni, Fe metal as a main component. In particular, in this case, it is more preferable that it is a composite metal oxide which makes any one or more components from Cr, Zn, Mn, V, Ti, and Cu metals as a component.

그리고 더욱 촉매효율을 높이기 위해서는 첫째의 경우나 둘째의 경우에 공히 Ag, Pt, Pd 금속을 첨가성분으로 하는 것이 바람직하다.In order to further increase the catalytic efficiency, it is preferable to use Ag, Pt, Pd metal as an additive component in both the first and second cases.

본 발명의 일실시예는 다음과 같다.One embodiment of the present invention is as follows.

물 10L에 질산염 코발트 20몰 중량을 완전히 용해시키고 여기에 니켈질산염 6몰 중량과 크롬질산염 1몰 중량을 첨가하여 수용액으로 제조한 후 NaOH 0.1몰 수용액을 점차로 추가하면서 침전법을 통한 Co1-X-YNiXCrY의 복합금속산화물을 제조한다.(0.2 ≤X ≤0.3, 0.01 ≤Y ≤0.05) 중성수로 완전히 세척 건조한 후 함침법을 통해 백금 0.5wt%Pt/SOLID의 함량으로 첨가시킨다.After complete dissolution of the nitrates of cobalt 20 mol weight in water 10L and to this was added nickel nitrate 6 molar weight and the chromium nitrate per mol weight in the manufacture of an aqueous solution Co 1-XY through the precipitation method while adding NaOH 0.1 mol aqueous solution gradually Ni A composite metal oxide of X Cr Y is prepared. (0.2 ≦ X ≦ 0.3, 0.01 ≦ Y ≦ 0.05) After washing thoroughly with neutral water and drying, it is added to the content of platinum 0.5wt% Pt / SOLID by impregnation.

모의가스조건(propane 1%, 가솔린 배기가스 조건)에서의 탄화수소저감효율Hydrocarbon reduction efficiency under simulated gas condition (propane 1%, gasoline exhaust gas condition)

S.V.(가스 유량)     S.V. (gas flow rate) 이전사양     Previous Specification 실시예1   Example 1 50000 HR-1 50000 HR -1 98%       98% 98%     98% 100000 HR1 100000 HR 1 93%       93% 95%     95% 200000 HR1 200000 HR 1 89%       89% 91%     91%

<고정방법><How to fix>

효과적으로 작동하기 위해서 입자의 모양크기에 구애받지 않으나 구형으로 0.001~0.05mm인 것이 적당하고, 포함되는 매트중량의 0.1~5%(0.5~2%) 첨가되는 것이 바람직하다. 입자가 클 경우나 너무 많이 첨가될 경우 매트의 탄성율에 영향이 있으며 내구성이 나빠질 수 있다.In order to operate effectively, regardless of the size of the particles, it is appropriate that the sphere is 0.001 to 0.05mm, and it is preferable that 0.1 to 5% (0.5 to 2%) of the included mat weight is added. If the particles are large or added too much, the elasticity of the mat may be affected and the durability may be deteriorated.

상기 흡착물은 매트의 제조과정 중 실리카/알루미나 화이버 성형과정 중 간단하게 도포하거나 첨가함으로써 고정화될 수 있다.The adsorbate may be immobilized by simply applying or adding during the silica / alumina fiber molding process during the manufacture of the mat.

본 발명에 의해서 이상과 같이 매트(23b)의 성분에 첨가되는 촉매성분입자(30)에 의해서 시동초기시(상온~150℃)에 생성되는 탄화수소가 효과적으로 흡착되고, 그 이상의 온도에서 흡착된 탄화수소를 분해하여 배출하거나 이산화탄소 등으로 산화시키게 된다. 따라서 탄화수소의 외부방출에 의한 악취가 사라지게 된다.According to the present invention, the hydrocarbon produced at the initial start-up (at room temperature to 150 ° C.) is effectively adsorbed by the catalyst component particles 30 added to the components of the mat 23b as described above, and the hydrocarbon adsorbed at a higher temperature is It is decomposed and released or oxidized to carbon dioxide. Therefore, the odor due to external emission of hydrocarbons disappears.

이상과 같이 구성되는 본 발명은 엔진시동초기시(상온~150℃)에서 촉매컨버터의 매트를 구성하는 바인더의 성분에 의해서 발생되는 탄화수소가 촉매성분입자에 임시 흡착되었다가 그 이상의 온도의 온도에서 분해되어 외부로 배출되어지므로서 탄화수소 발생에 따른 악취가 억제되는 커다란 장점이 있는 것이다.In the present invention configured as described above, hydrocarbons generated by the components of the binder constituting the mat of the catalytic converter at the initial engine start (normal temperature ~ 150 ° C) are temporarily adsorbed to the catalyst component particles and then decomposed at a temperature higher than that. Since it is discharged to the outside there is a great advantage that the odor caused by the hydrocarbon is suppressed.

도 1은 본 발명에 의해 형성되는 촉매컨버터의 단면도.1 is a cross-sectional view of a catalytic converter formed by the present invention.

도 2는 본 발명에 의한 촉매성분입자가 도포된 상태를 확대도시한 도면.Figure 2 is an enlarged view showing a state in which the catalyst component particles according to the present invention are applied.

도 3은 종래의 기술을 설명하기 위한 도면.3 is a view for explaining a conventional technology.

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

20 : 촉매컨버터20: catalytic converter

21 : 캔21: can

22 : 촉매담체22: catalyst carrier

23 : 매트23: matt

Claims (5)

캔의 내부에 촉매담체가 형성되어지되, 외부충격으로부터 촉매담체가 보호되도록 유리섬유, 버뮤칼라이트, 바인더 등의 성분으로 형성되는 매트가 상기 촉매담체와 캔 사이에 개재되는 촉매컨버터에 있어서,In the catalyst converter in which a catalyst carrier is formed inside the can, and a mat formed of a component such as glass fiber, vermucalite, binder, etc. is provided between the catalyst carrier and the can so as to protect the catalyst carrier from external impact. 상기한 매트(23b)의 구성성분이 배기가스와 작용하여 탄화수소 및 일산화탄소 등이 발생되어지는 것을 억제하기 위한 촉매성분입자(30)가 상기 매트(23b)의 제조과정에서 추가되는 것을 특징으로 하는 촉매컨버터의 매트.A catalyst component particle 30 is added during the manufacturing process of the mat 23b to suppress the generation of hydrocarbons, carbon monoxide, and the like by the components of the mat 23b interacting with the exhaust gas. Mat of the converter. 제 1 항에 있어서,The method of claim 1, 상기한 촉매성분입자(30)는 제올라이트(ZSM-5)인 것을 특징으로 하는 촉매컨버터의 매트.The catalyst component particle 30 is a mat of the catalytic converter, characterized in that the zeolite (ZSM-5). 제 1 항에 있어서,The method of claim 1, 상기한 촉매성분입자(30)는 Co, Ni, Fe 중에서 2가지 이상을 주성분으로 하는 것을 특징으로 하는 촉매컨버터의 매트The catalyst component particle 30 is a mat of the catalytic converter, characterized in that the main component is at least two of Co, Ni, Fe 제 3 항에 있어서,The method of claim 3, wherein 상기한 촉매성분입자(30)에는 Cr, Zn, Mn, V, Ti, Cu 중 한가지 이상의 성분이 조성분으로 첨가되는 것을 특징으로 하는 촉매컨버터의 매트.Mat of the catalytic converter, characterized in that one or more components of Cr, Zn, Mn, V, Ti, Cu is added as a component to the catalyst component particles (30). 제 2 항 또는 제 3 항에 있어서,The method of claim 2 or 3, 상기한 촉매성분입자(30)에는 Ag, Pt, Pd 중 한가지 이상의 성분이 조성분으로 첨가되는 것을 특징으로 하는 촉매컨버터의 매트.Mat of the catalytic converter, characterized in that at least one component of Ag, Pt, Pd is added to the catalyst component particles (30) as a component.
KR10-2002-0052383A 2002-09-02 2002-09-02 Mat for catalytic converter KR100489135B1 (en)

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JPH07102961A (en) * 1993-10-05 1995-04-18 Honda Motor Co Ltd Holding member for catalytic converter
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038214A (en) * 1969-08-28 1977-07-26 Mitsubishi Jukogyo Kabushiki Kaisha Impregnated fibrous catalyst for treating exhaust gas of an internal combustion engine and process for making same
US4093423A (en) * 1972-10-03 1978-06-06 Volkswagenwerk Aktiengesellschaft Catalytic device for the catalytic purification of exhaust gases
JPH06170172A (en) * 1992-12-01 1994-06-21 Nissan Motor Co Ltd Hydrocarbon adsorbing catalyst
KR950005353A (en) * 1993-08-16 1995-03-20 알프레드 엘. 미첼슨 Modified Zeolites for Hydrocarbon Trapping
JPH07102961A (en) * 1993-10-05 1995-04-18 Honda Motor Co Ltd Holding member for catalytic converter
JPH07189678A (en) * 1993-12-24 1995-07-28 Ibiden Co Ltd Mounting method for exhaust emission control converter heat insulating seal member for automobile
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KR100371089B1 (en) * 2000-10-19 2003-02-06 한국가스공사 Preparation of Hybrid Molecular Sieve de-NOx Catalyst Containing Highly Dispersed Noble Metals
EP1214976A1 (en) * 2000-12-15 2002-06-19 Delphi Technologies, Inc. Nitrogen oxide removal catalyst
KR100440025B1 (en) * 2001-12-10 2004-07-14 현대자동차주식회사 Catalyst apparatus to reduce hydrocarbon

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