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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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公开(公告)号：KR101673331B1
公开(公告)日：2016-11-07
申请号：KR1020140177358
申请日：2014-12-10
Applicant: 현대자동차주식회사 , 기아자동차주식회사 , 포항공과대학교 산학협력단
Abstract: 촉매, 이의제조방법, 및이를포함하는배기가스정화용촉매시스템이개시된다. 본발명의일 구현예는, 하기화학식 1로이루어진촉매를제공한다. [화학식 1] ABB'O(여기에서, A, B, B', 및 y는명세서에서정의된바와같다.)
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Patent Agency Ranking
公开(公告)号：KR1020160070424A
公开(公告)日：2016-06-20
申请号：KR1020140177358
申请日：2014-12-10
Applicant: 현대자동차주식회사 , 기아자동차주식회사 , 포항공과대학교 산학협력단
CPC classification number: B01J23/63 , B01D53/94 , B01J23/00 , B01J23/10 , B01J23/58 , B01J37/08 , Y02T10/22
Abstract: 촉매, 이의제조방법, 및이를포함하는배기가스정화용촉매시스템이개시된다. 본발명의일 구현예는, 하기화학식 1로이루어진촉매를제공한다. [화학식 1] ABB'O(여기에서, A, B, B', 및 y는명세서에서정의된바와같다.)
Abstract translation: 公开了一种催化剂及其制造方法和用于净化包含该催化剂的废气的催化剂体系。 根据本发明的一个实施方案，提供了由式AB_（1-y）B'_yO_3组成的催化剂，其中A，B，B'和y与说明书中所定义相同。 该催化剂在高温下具有优异的稳定性，同时可以在汽油废气条件下同时除去存在的烃（HC），一氧化碳（CO）和氮氧化物（NO_x）。
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公开(公告)号：KR1020130125481A
公开(公告)日：2013-11-19
申请号：KR1020120049020
申请日：2012-05-09
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
CPC classification number: B01J37/12 , B01D53/9418 , B01D53/945 , B01D53/9477 , B01D2255/1025 , B01J23/42 , B01J23/44 , B01J23/462 , B01J23/63 , B01J37/0201 , B01J37/031 , Y02T10/22
Abstract: The object of the present invention is to provide a catalyst for converting nitrogen oxides into ammonia and a manufacturing method thereof, wherein the catalyst is capable of converting nitrogen oxides into ammonia under the condition of diluted exhaust gas with stoichiometric air-fuel ratio (A/F=14.7). To achieve the object, the catalyst for converting nitrogen oxides into ammonia according to the present invention includes a metal support with precious metal and is capable of converting nitrogen oxides into ammonia under the condition of diluted exhaust gas with stoichiometric air-fuel ratio (A/F=14.7). [Reference numerals] (AA) NH_3 generation amount (ppm);(BB) Temperature ()
Abstract translation: 本发明的目的是提供一种用于将氮氧化物转化为氨的催化剂及其制造方法，其中该催化剂能够在化学计量空燃比稀释的废气条件下将氮氧化物转化为氨（A / F = 14.7）。 为了达到上述目的，根据本发明的用于将氮氧化物转化为氨的催化剂包括具有贵金属的金属载体，并且能够在化学计量空燃比的稀释废气条件下将氮氧化物转化为氨（A / F = 14.7）。 （AA）NH_3产生量（ppm）;（BB）温度（℃）
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公开(公告)号：KR101438885B1
公开(公告)日：2014-09-05
申请号：KR1020120049020
申请日：2012-05-09
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
CPC classification number: B01J37/12 , B01D53/9418 , B01D53/945 , B01D53/9477 , B01D2255/1025 , B01J23/42 , B01J23/44 , B01J23/462 , B01J23/63 , B01J37/0201 , B01J37/031 , Y02T10/22
Abstract: 본 발명은 산화 금속 지지체에 Rh을 담지한 촉매를 적용하여 이론 공연비(A/F=14.7) 이상의 연료가 희박한 배기가스 조건에서도 질소산화물을 암모니아로 전환시킬 수 있는 질소산화물의 암모니아 전환용 촉매 및 이의 제조방법을 제공하는데 그 목적이 있다.
상기와 같은 목적을 달성하기 위해 본 발명에 따른 질소산화물의 암모니아 전환용 촉매는 귀금속이 담지된 산화 금속 지지체를 포함하여, 이론 공연비(A/F=14.7) 이상의 연료가 희박한 배기가스 조건에서도 질소산화물을 암모니아로 전환시킬 수 있도록 된 것을 특징으로 한다.-
公开(公告)号：KR1020130137868A
公开(公告)日：2013-12-18
申请号：KR1020120061504
申请日：2012-06-08
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
CPC classification number: B01J23/002 , B01J23/50 , B01J37/08 , B01J2523/00 , B01J2523/18 , B01J2523/3706 , B01J2523/72
Abstract: The present invention relates to a perovskite catalyst for NO oxidation and a manufacturing method thereof and, in particular, to a perovskite catalyst for NO oxidation and a manufacturing method thereof capable of accelerating the usage of the perovskite catalyst for NO oxidation and reducing production costs owing to the excluded use of precious metals because the perovskite catalyst for NO oxidation can be used as a main component of an aftertreatment system for reducing NOx in exhaust gas of a leanburn gasoline engine or a diesel engine by producing the perovskite catalyst including silver (Ag) having the function of NO oxidation and excellent hydrothermal stability. The perovskite catalyst for NO oxidation is the core technology of an aftertreatment system for vehicle exhaust gas which can be used for an eco-friendly low-pollution vehicle to react to environmental restrictions in the WTO system. [Reference numerals] (AA) Pt-based commercial catalyst
Abstract translation: 本发明涉及一种用于NO氧化的钙钛矿催化剂及其制造方法，特别涉及一种用于NO氧化的钙钛矿催化剂及其制造方法，其能够促进钙钛矿催化剂的NO氧化的使用，并降低生产成本 对于排除使用的贵金属，因为用于NO氧化的钙钛矿催化剂可以用作通过生产包含银（Ag）的钙钛矿催化剂来减少稀薄汽油发动机或柴油发动机的废气中的NOx的后处理系统的主要成分， 具有NO氧化功能和极好的水热稳定性。 NO氧化的钙钛矿催化剂是车用废气后处理系统的核心技术，可用于环保型低污染车辆对世贸组织体系的环境限制作出反应。 （附图标记）（AA）Pt基商业催化剂
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公开(公告)号：KR100878944B1
公开(公告)日：2009-01-19
申请号：KR1020070083453
申请日：2007-08-20
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
Abstract: A reducing agent control device and method of the silver deposition alumina catalyst is provided to improve the fuel economy by controlling the optimum C1/NOx ratio according to temperature and spraying the reducing agent on the front of a catalyst. A reducing agent control device of the silver deposition alumina catalyst comprises a temperature and the NOx sensor(11) sensing the exhaust temperature and NOx; a controller(12) controlling amount of the reducing agent calculated through the C1/NOx ratio according to the exhaust temperature; a reducing agent tank(14) storing the reducing agent for returning the NOx to the nitrogen; a nozzle(16) spraying the reducing agent on front of the catalyst; and a flow controlling valve(19) supplying the reducing agent of the reducing agent tank to the nozzle.
Abstract translation: 提供银沉积氧化铝催化剂的还原剂控制装置和方法，以通过根据温度控制最佳C1 / NOx比并将还原剂喷射在催化剂的前面来提高燃料经济性。 银沉积氧化铝催化剂的还原剂控制装置包括温度和感测排气温度和NOx的NOx传感器（11）; 控制器（12），根据排气温度控制通过C1 / NOx比计算的还原剂的量; 储存用于将NOx还原到氮气的还原剂的还原剂罐（14） 将所述还原剂喷射到所述催化剂前面的喷嘴（16）; 以及将还原剂罐的还原剂供给到喷嘴的流量控制阀（19）。
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