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公开(公告)号：US20170232387A1
公开(公告)日：2017-08-17
申请号：US15044444
申请日：2016-02-16
发明人： Gongshin Qi , John T. Johnson , Se H. Oh , Wei Li
CPC分类号： B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/204 , B01D2255/2063 , B01D2255/2073 , B01D2255/20738 , B01D2255/40 , B01D2255/402 , B01D2255/407 , B01D2255/908 , B01J23/10 , B01J23/34 , B01J23/42 , B01J23/44 , B01J23/464 , B01J23/83 , Y02A50/2324 , Y02T10/22
摘要： The present technology relates to perovskite materials for oxygen storage. In one aspect, the perovskite material includes at least one platinum group metal (PGM) andat least one perovskite compound selected from the group consisting of formula (a): LaxMO3 and formula (b): La(1-y)SryMO3, wherein: M is selected from the group consisting of Co, Cu, Fe, Mn and Ni; x is about 0.7 to about 1.1; and y is 0 to about 0.8, and wherein M, x, and y are independently variable for each one of said perovskite compounds. In one exemplary method, the perovskite materials of the technology are employed to treat automotive exhaust gas. In one embodiment, the perovskite materials are included in the washcoat of an automotive catalytic converter.
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公开(公告)号：US09962654B2
公开(公告)日：2018-05-08
申请号：US15044444
申请日：2016-02-16
发明人： Gongshin Qi , John T. Johnson , Se H. Oh , Wei Li
IPC分类号： B01J23/10 , B01J23/34 , B01J23/42 , B01J23/44 , B01J23/63 , B01J23/83 , B01D53/94 , B01J23/46
CPC分类号： B01D53/945 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/204 , B01D2255/2063 , B01D2255/2073 , B01D2255/20738 , B01D2255/40 , B01D2255/402 , B01D2255/407 , B01D2255/908 , B01J23/10 , B01J23/34 , B01J23/42 , B01J23/44 , B01J23/464 , B01J23/83 , Y02A50/2324 , Y02T10/22
摘要： The present technology relates to perovskite materials for oxygen storage. In one aspect, the perovskite material includes at least one platinum group metal (PGM) and at least one perovskite compound selected from the group consisting of formula (a): LaxMO3 and formula (b): La(1-y)SryMO3, wherein: M is selected from the group consisting of Co, Cu, Fe, Mn and Ni; x is about 0.7 to about 1.1; and y is 0 to about 0.8, and wherein M, x, and y are independently variable for each one of said perovskite compounds. In one exemplary method, the perovskite materials of the technology are employed to treat automotive exhaust gas. In one embodiment, the perovskite materials are included in the washcoat of an automotive catalytic converter.
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公开(公告)号：US09708949B2
公开(公告)日：2017-07-18
申请号：US14304890
申请日：2014-06-14
发明人： Gongshin Qi , John T. Johnson , Wei Li
CPC分类号： F01N3/2066 , B01D53/90 , B01D53/9418 , B01D53/944 , B01D53/9477 , B01D2251/2067 , B01D2255/1021 , B01D2255/1023 , B01D2255/2063 , B01D2255/2065 , B01D2255/20707 , B01D2255/20715 , B01D2255/20723 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/20776 , B01D2255/50 , B01D2255/908 , B01D2255/911 , B01D2255/9205 , F01N3/021 , F01N3/0222 , F01N3/035 , F01N3/103 , F01N2340/02 , F01N2610/02 , Y02T10/24
摘要： An exhaust aftertreatment system for purifying exhaust gases from a compression-ignition engine includes a first exhaust aftertreatment device including an oxidation catalyst and a particulate filter element fluidly coupled to an exhaust outlet of the engine. A second exhaust aftertreatment device includes an ammonia-selective catalytic reduction catalyst fluidly coupled to a downstream outlet of the first exhaust aftertreatment device. A reductant injection system is configured to inject urea reductant into the exhaust gas feedstream between the first exhaust aftertreatment device and the second exhaust aftertreatment device.
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