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1.发明申请METHOD FOR REGENERATING CATALYST FOR OXIDIZING COMPRESSED NATURAL GAS VEHICLE EXHAUST GAS 审中-公开氧化压缩自然气体排放气体催化剂的方法公开(公告)号：US20170051649A1
公开(公告)日：2017-02-23
申请号：US15307197
申请日：2015-04-08
发明人： Hyun-sik HAN , Seung Chul NA , Eun-seok KIM , Joon-Woo KIM
CPC分类号： F01N3/2033 , F01N3/20 , F01N3/36 , F01N9/00 , F01N11/00 , F01N11/002 , F01N2260/04 , F01N2430/06 , F01N2550/02 , F01N2560/06 , F01N2570/12 , F01N2900/0422 , F01N2900/08 , F01N2900/1602 , F01N2900/1621 , F01N2900/1626 , F02B43/10 , F02B2043/103 , Y02A50/2322 , Y02T10/32 , Y02T10/47
摘要： This invention relates to a method of regenerating a deactivated catalyst, which carries precious metal components including platinum and palladium and which is used to purify a gas exhausted from a compressed natural gas lean-burn engine. The method includes creating a reduction atmosphere over the catalyst. The creating the reduction atmosphere over the catalyst includes controlling an air-fuel ratio or directly injecting CNG fuel into the catalyst.
摘要翻译： 本发明涉及一种再生失活催化剂的方法，该催化剂携带包含铂和钯的贵金属组分，其用于净化从压缩天然气稀燃燃烧发动机排出的气体。 该方法包括在催化剂上产生还原气氛。 在催化剂上产生还原气氛包括控制空燃比或直接将CNG燃料喷射到催化剂中。
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2.发明申请公开(公告)号：US20170007987A1
公开(公告)日：2017-01-12
申请号：US15107299
申请日：2014-12-16
发明人： Hyun-sik HAN , Seung Chul NA , Eun-seok KIM , Joon-Woo KIM
CPC分类号： B01J23/63 , B01D2255/1021 , B01D2255/1023 , B01D2255/2042 , B01D2255/2061 , B01D2255/2063 , B01D2255/20753 , B01D2257/7025 , B01D2258/018 , B01J23/42 , B01J23/44 , B01J23/58 , B01J23/892 , B01J23/894 , B01J35/0006 , B01J35/04 , B01J37/04 , F01N3/10 , F01N3/20 , F01N3/2825 , Y02A50/2322
摘要： Disclosed is a catalyst composition for inhibiting the deactivation of a catalyst for purifying exhaust gas from a compressed natural gas combustion system, which contains platinum and palladium as precious metal components. Specifically, a catalyst for purifying exhaust gas from a compressed natural gas vehicle or a static combustion system is configured such that a ceramic substrate is impregnated with palladium-impregnated first alumina, platinum-impregnated second alumina, and a ceria component, wherein the first alumina is further impregnated with a cocatalyst selected from the group consisting of barium, nickel, lanthanum, samarium, and yttrium, thus significantly inhibiting the deactivation of the CNG lean burn engine catalyst.
摘要翻译： 公开了一种催化剂组合物，其用于抑制用于从包含铂和钯作为贵金属组分的压缩天然气燃烧系统中净化废气的催化剂的失活。 特别地，用于净化来自压缩天然气车辆或静态燃烧系统的废气的催化剂被构造成使得陶瓷基底浸渍有浸渍钯的第一氧化铝，铂浸渍的第二氧化铝和二氧化铈组分，其中第一氧化铝 进一步用选自钡，镍，镧，钐和钇的助催化剂浸渍，从而显着抑制CNG贫燃发动机催化剂的失活。
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公开(公告)号：US20190001304A1
公开(公告)日：2019-01-03
申请号：US16064269
申请日：2016-12-16
发明人： Hyun-sik HAN , Eun-seok KIM , Mi-Young KIM , Jun hong JEON
摘要： The present invention provides a catalyst composition for inhibiting the inactivation of a catalyst for purification of compressed natural gas combustion system exhaust gas on which a noble metal component comprising platinum and palladium is supported. An oxidation catalyst, for a compressed natural gas vehicle or static combustion system exhaust gas, in which a first alumina impregnated with platinum, a second alumina impregnated with palladium, and a ceria component are supported on a ceramic support, has a barium cocatalyst supported on the first alumina, thereby greatly inhibiting inactivation of a CNG lean burn engine catalyst.
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