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公开(公告)号：KR101394877B1
公开(公告)日：2014-05-13
申请号：KR1020120158138
申请日：2012-12-31
Applicant: 현대자동차주식회사
Inventor： 윤영기
CPC classification number: F01N9/00 , F01N3/023 , F01N13/009 , F01N2250/02
Abstract: The present invention relates to a temperature control method of a diesel particulate filter (DPF) for a vehicle capable of easily regenerating soot by effectively controlling the regeneration temperature of a DPF. The temperature control method of a DPF for a vehicle according to the present invention comprises: a process of measuring the calorific value of a diesel oxidation catalyst (DOC); a process of obtaining a cooling rate correction value according to outdoor temperatures; a process of calculating and estimating a cooling rate using the cooling rate correction value; a process of calculating a post-injection fuel amount correction value by converting the cooling rate; and a process of adding the post-injection fuel amount correction value to a post-injection fuel amount according to the calorific value of the DOC.
Abstract translation: 本发明涉及一种用于车辆的柴油微粒过滤器（DPF）的温度控制方法，其能够通过有效地控制DPF的再生温度来容易地再生烟灰。 根据本发明的用于车辆的DPF的温度控制方法包括：测量柴油机氧化催化剂（DOC）的发热量的过程; 根据室外温度获得冷却速度校正值的处理; 使用冷却速度校正值来计算和估计冷却速度的处理; 通过转换冷却速度来计算喷射后燃料量校正值的处理; 以及根据DOC的发热量将后喷射燃料量校正值添加到后喷射燃料量的处理。
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公开(公告)号：KR1020100059466A
公开(公告)日：2010-06-04
申请号：KR1020080118250
申请日：2008-11-26
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
CPC classification number: B01J23/42 , B01D53/565 , B01D53/8628 , B01J23/04 , B01J23/34 , B01J23/75 , B01J2523/25 , B01J2523/3712
Abstract: PURPOSE: NOx storage - reducing catalyst is provided to have relatively high storage component after deterioration or sulfation. CONSTITUTION: A NOx storage - reducing catalyst comprises 1 ~ 5 weight% of transition metal selected from platinum, cobalt and manganese, 2 ~ 30 weight% of a Ba-K-Ce storage component, and 65 ~ 95 weight% of alumina. The Ba-K-Ce 3-componet storage component comprises 0.025 ~ 0.35 : 0.2 ~ 0.95 : 0.025 ~ 0.45 weight ratio of Ba, K Ce and BET non-surface area of the alumina is 50 m/g ~ 300 m/g.
Abstract translation: 目的：NOx储存 - 还原催化剂在劣化或硫酸化后具有较高的储存成分。 构成：NOx储存还原催化剂含有1〜5重量％的选自铂，钴和锰的过渡金属，2〜30重量％的Ba-K-Ce储存组分和65〜95重量％的氧化铝。 Ba-K-Ce 3组分储存组分包含Ba，K Ce和BET的0.025〜0.35：0.2〜0.95：0.025〜0.45重量比，氧化铝的BET表面积为50 m / g〜300 m / g。
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公开(公告)号：KR100892528B1
公开(公告)日：2009-04-10
申请号：KR1020070129266
申请日：2007-12-12
Applicant: 현대자동차주식회사
CPC classification number: B01J23/42 , B01D53/565 , B01D53/8628 , B01J21/04 , B01J23/04 , B01J23/34 , B01J23/44 , B01J23/464 , Y02P20/52
Abstract: A nitric oxide storage-reduction catalyst composition is provided to offer catalyst regeneration capability and a high storage rate of the nitric oxide by improving durability, deterioration durability especially. A nitric oxide storage-reduction catalyst composition includes a 5 ~ 30 weight% of potassium, 1 ~ 7 weight% of manganese, precious metal of 0.1 ~ 5 weight% and alumina on the basis of total weight of the catalyst. The precious metal is two or more metals selected from platinum, palladium, rhodium. A precursor of the potassium is one or more selected from potassium methoxide, potassium ethoxide, potassium propanoxide, potassium butoxide.
Abstract translation: 提供一氧化氮储存还原催化剂组合物，以提高耐久性，耐久性，特别是提供催化剂再生能力和一氧化氮的高储存率。 一氧化氮储存还原催化剂组合物包括基于催化剂总重量的5〜30重量％的钾，1〜7重量％的锰，0.1〜5重量％的贵金属和氧化铝。 贵金属是选自铂，钯，铑中的两种以上的金属。 钾的前体是选自甲醇钾，乙醇钾，丙醇钾，丁醇钾中的一种或多种。
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公开(公告)号：KR100892520B1
公开(公告)日：2009-04-10
申请号：KR1020070115797
申请日：2007-11-14
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
CPC classification number: B01J23/58 , B01D53/94 , B01J23/462 , B01J35/1014 , B01J35/1019
Abstract: A ruthenium and potassium contained nitric oxide storage and reduction catalyst is provided to decrease the amount of use of precious metals by adding the ruthenium in the catalyst and to offer a high storage property. A ruthenium and potassium contained nitric oxide storage and reduction catalyst is characterized by dipping precious metals of 0.1 ~ 3 weight% as active components about an alumina(Al2O3) support. The precious metals are ruthenium of 0.1 ~ 10 weight%, potassium of 5 ~ 30 weight%, platinum, palladium, and rhodium. An alumina carrier includes a BET specific surface area of 50 ~ 350 m / g range.
Abstract translation: 提供了含有钌和钾的一氧化氮储存和还原催化剂，以通过在催化剂中加入钌来降低贵金属的使用量并提供高储存性能。 含有钌和钾的一氧化氮储存和还原催化剂的特征在于以氧化铝（Al 2 O 3）载体作为活性组分浸渍0.1〜3重量％的贵金属。 贵金属为0.1〜10重量％的钌，5〜30重量％的钾，铂，钯和铑。 氧化铝载体包括BET比表面积为50〜350m / g的范围。
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公开(公告)号：KR1020080026441A
公开(公告)日：2008-03-25
申请号：KR1020060091462
申请日：2006-09-20
Applicant: 현대자동차주식회사
Inventor： 윤영기
Abstract: A secondary air introduction device of a catalyst post treatment device is provided to save fuel required to raise the temperature by making the reproduction condition of a smoke filter identical to the reproduction condition of nitrogen oxide catalyst. A secondary air introduction device includes a turbo charger(10), a sub pipe(20), a control valve(30), an injector(40), and a control system(50). The turbo charger braches air from an engine. The sub pipe delivers the air into a pipe(9) having catalyst used to remove nitrogen oxide and a filter(7) used to filtering smoke. The control valve is installed in the sub pipe to adjust the flow rate of the air. The injector is installed at the terminal end of the sub pipe connected to the pipe to inject the air. The control system adjusts the control valve and the injector.
Abstract translation: 提供一种催化剂后处理装置的二次空气引入装置，用于通过使烟雾过滤器的再生条件与氮氧化物催化剂的再生条件相同来节省升高温度所需的燃料。 二次空气引入装置包括涡轮增压器（10），副管道（20），控制阀（30），喷射器（40）和控制系统（50）。 涡轮增压器将发动机的空气装入。 副管道将空气输送到具有用于除去氮氧化物的催化剂的管道（9）和用于过滤烟雾的过滤器（7）。 控制阀安装在副管道中以调节空气的流量。 注射器安装在连接到管道的子管的终端以注入空气。 控制系统调节控制阀和喷油器。
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Patent Agency Ranking
公开(公告)号：KR1020020061324A
公开(公告)日：2002-07-24
申请号：KR1020010002329
申请日：2001-01-16
Applicant: 현대자동차주식회사
Inventor： 윤영기
CPC classification number: B01J23/40 , B01J23/22 , B01J37/0205 , B01J37/0215 , B01J37/08
Abstract: PURPOSE: A diesel oxidation catalyst with high removal efficiency to hydrocarbons and carbon monoxide without micropore-blocking due to adsorption of micro particulate pollutants is provided. The diesel oxidation catalyst of the present invention can minimize sulfate generation by pulverizing TiO2 washcoat material, which has excellent anti-poisoning property against sulfur, and then coating it on uppermost layer of diesel oxidation catalyst support. CONSTITUTION: The fabrication method of the present diesel oxidation catalyst includes a first washcoating material preparation step in which 100 parts by weight of alumina powder is impregnated with 0.5-2 part by weight of novel metal catalyst such as Pt and Pd and 5-10 parts by weight of one or more cocatalysts selected from V, Co, Ni, Cr, Mo, Fe, Cu and Nb wherein the alumina powder has specific surface area of higher than 200m¬2/g and its average pore size is less than 200nm; a second washcoating material preparation step in which nitrate-based or alkoxide-based titania precursor is dropped in aqueous basic solution wherein 5-20 parts by weight of V2O5 is further added in titania precursor, based on 100 parts by weight of TiO2, and TiO2 has specific surface area of less than 50m¬2/g and its average pore size is 5-20μm; adding dispersing agent in the first washcoating material; applying the first washcoating material on support, followed by drying; applying the second washcoating material thereon; and heat-treating at 450-550deg.C after drying.
Abstract translation: 目的：提供一种柴油氧化催化剂，对于微生物颗粒污染物的吸附，对碳氢化合物和一氧化碳的去除效率较高，无微孔阻塞。 本发明的柴油氧化催化剂可以通过粉碎具有优异的抗硫毒性的TiO 2修补基面涂料，然后将其涂覆在柴油机氧化催化剂载体的最上层上来最小化硫酸盐的产生。 构成：本发明的柴油氧化催化剂的制造方法包括：第一涂层涂料制备步骤，其中将100重量份的氧化铝粉末浸渍有0.5-2重量份的新型金属催化剂如Pt和Pd和5-10份 的一种或多种选自V，Co，Ni，Cr，Mo，Fe，Cu和Nb的助催化剂，其中氧化铝粉末的比表面积高于200m2 / g，其平均孔径小于200nm; 第二种涂布材料制备步骤，其中将硝酸盐基或醇盐基二氧化钛前体滴加到碱性水溶液中，其中，基于100重量份的TiO 2和TiO 2，还可以在二氧化钛前体中加入5-20重量份的V 2 O 5 比表面积小于50m2 / g，平均孔径为5-20μm; 在第一种涂料中加入分散剂; 将第一种涂布材料涂于支撑体上，然后干燥; 在其上施用第二洗衣涂层材料; 干燥后在450-550℃下进行热处理。
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公开(公告)号：KR1019990058655A
公开(公告)日：1999-07-15
申请号：KR1019970078800
申请日：1997-12-30
Applicant: 현대자동차주식회사
Inventor： 윤영기
IPC: B01J23/89
Abstract: 본 발명은 제올라이트를 포함하는 내열성 촉매체를 제조하는 방법에 관한 것으로서, 보다 상세하게는 알루미나, 세리아 및 티타니아 등과 각종 금속 산화물을 함유하는 워시코트(washcoat)를 습식 분쇄하여 슬러리를 제조하고, 제올라이트(zeolite)와 각종 금속 산화물을 함유하는 워시코트를 습식 분쇄하여 얻은 슬러리를 혼합하여 코디어라이트(cordierite)로 된 벌집구조의 담지체에 코팅하고 건조시킨 다음 열처리하는 과정을 포함하는 자동차 배기가스 정화용 촉매체의 제조방법에 관한 것으로서, 본 발명의 촉매체는 내열성이 우수하여 환경에 유해한 배기가스가 많이 발생되는 린-번용 엔진에도 적용될 수 있는 우수한 자동차 배기가스 정화용 촉매체이다.
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公开(公告)号：KR1020120021644A
公开(公告)日：2012-03-09
申请号：KR1020100077506
申请日：2010-08-11
CPC classification number: B01J23/58 , B01D53/9422 , B01D53/9477 , B01D2255/1021 , B01D2255/1023 , B01D2255/2022 , B01D2255/2025 , B01D2255/2047 , B01D2255/2092 , B01D2255/91 , B01J23/005 , B01J23/007 , B01J23/66 , B01J29/06 , B01J37/031 , F01N3/0821 , F01N3/0842 , F01N3/0871 , F01N3/208 , F01N2610/03
Abstract: PURPOSE: A nitrogen oxide absorbing-reducing catalyst, a method for manufacturing the same, and a system for purifying nitrogen oxide including the same are provided to improve the activity of the catalyst at low temperatures. CONSTITUTION: A nitrogen oxide absorbing-reducing catalyst includes a support, a nitrogen oxide absorbing element, and one or more noble metals. The support includes alkali metal and aluminum or alkali earth metal and aluminum. The nitrogen oxide absorbing element is alkali metal, alkali earth metal, or rear earth elements. The noble metals are selected from a group including Pt, Pd, Ru, Ag, Au, and Rh. A method for manufacturing a nitrogen oxide absorbing-reducing catalyst includes the following: the hydroxide of the alkali metal or the hydroxide of the alkali earth metal are dissolved with aluminum nitrate in an aqueous solution; the solution is stirred, dried, and fired to obtain the support; the support is impregnated with the alkali metal, the alkali earth metal, or rear earth element and one or more noble metals; and the impregnated product is dried and fired.
Abstract translation: 目的：提供氮氧化物吸收还原催化剂及其制造方法以及包含该氮氧化物吸收还原催化剂的氮氧化物的净化系统，以提高催化剂在低温下的活性。 构成：氮氧化物吸收还原催化剂包括载体，氮氧化物吸收元素和一种或多种贵金属。 载体包括碱金属和铝或碱土金属和铝。 氮氧化物吸收元件是碱金属，碱土金属或后土元素。 贵金属选自Pt，Pd，Ru，Ag，Au和Rh。 制造氮氧化物吸收还原催化剂的方法包括：碱金属的氢氧化物或碱土金属的氢氧化物用硝酸铝溶解在水溶液中; 将溶液搅拌，干燥并烧制得到载体; 载体用碱金属，碱土金属或后土元素和一种或多种贵金属浸渍; 将浸渍的产品干燥并烧制。
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公开(公告)号：KR1020110062588A
公开(公告)日：2011-06-10
申请号：KR1020090119358
申请日：2009-12-03
Applicant: 현대자동차주식회사
Abstract: PURPOSE: An exhaust system is provided to prevent degradation due to sulfur component and enhance the purification efficiency of catalyst by minimizing the ratio of platinum and ruthenium as the component of purifying catalyst. CONSTITUTION: An exhaust system comprises an engine, an exhaust line and purifying catalyst. Exhaust gas emitted after being burnt in the engine, passes through the exhaust line. The purifying catalyst is installed on the exhaust line and reduces harmful materials from the exhaust gas. The purifying catalyst comprises a carrier and catalyst. The catalyst consists of platinum and ruthenium, which are formed on the surface of or in the carrier.
Abstract translation: 目的：提供排气系统，以防止硫成分降解，并通过最小化铂和钌作为净化催化剂组分的比例提高催化剂的净化效率。 构成：排气系统包括发动机，排气管和净化催化剂。 在发动机燃烧后排出的废气通过排气管。 净化催化剂安装在排气管上，减少废气中的有害物质。 净化催化剂包括载体和催化剂。 催化剂由铂和钌构成，其形成在载体的表面或载体中。
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公开(公告)号：KR100993686B1
公开(公告)日：2010-11-10
申请号：KR1020080118250
申请日：2008-11-26
Applicant: 현대자동차주식회사 , 포항공과대학교 산학협력단
Abstract: 본 발명은 기존 Ba 또는 K 을 포함한 NOx 흡장-환원 촉매(NOx storage-reduction catalyst)의 취약점인 촉매의 내열성 및 내유황성을 개선하기 위한 Ba-K-Ce 삼원계 흡장물질을 포함하는 NOx 흡장-환원 촉매에 관한 것으로서, 이를 더욱 자세하게 설명하면, 백금(Pt), 코발트(Co) 및 망간(Mn) 중에서 선택된 전이금속; Ba-K-Ce 삼원계 흡장물질; 및 알루미나(alumina, Al
2 O
3 );를 포함하고 있는 것을 그 특징으로 한다. 이러한 본 발명의 흡장-환원 촉매는 내열성 및 내유황성이 우수하기 때문에 대표적인 NOx 흡장 촉매인 기존의 Pt/Ba/Al
2 O
3 NOx 흡장 촉매에 비해 열화 또는 황 피독(sulfation) 후에도 상대적으로 높은 촉매의 흡장 특성을 갖는다.
자동차 촉매, 질소산화물, 흡장-환원 촉매, 삼원계
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