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    EXHAUST GAS TREATMENT CATALYSTS
    5.
    发明专利
    EXHAUST GAS TREATMENT CATALYSTS 未知

    公开(公告)号：MY191845A

    公开(公告)日：2022-07-18

    申请号：MYPI2018000246

    申请日：2016-08-18

    Applicant: BASF CORP ,  N E CHEMCAT CORP

    Inventor： ZHENG XIAOLAI ,  DEEBA MICHEL ,  YANG XIAOFAN ,  FU QI ,  WASSERMANN KNUT ,  NAGATA MAKATO ,  KANNO YASUHARU ,  NAKAYAMA HIROKI

    IPC: B01J29/76 ,  B01J29/85

    Abstract: Described are catalysts effective to abate NOx, hydrocarbons, and carbon monoxide from a gasoline engine (710) exhaust gas. Such catalysts include a substrate (105; 205; 305; 405; 505; 605) having a first and second material disposed thereon, the first material effective to catalyze selective catalytic reduction of nitrogen oxides in the presence of ammonia and the second material effective to abate hydrocarbons and carbon monoxide, the first material comprising a molecular sieve promoted with copper and/or iron in a low loading, the second material comprising at least one oxide of Ni, Fe, Mn, Co, and Cu on a support selected from oxides of Ce, Ce-Zr, Zr, Mn, Pr and combinations thereof. Also described are gasoline engine (710) exhaust gas treatment systems and methods of treating exhaust gas from a gasoline engine (710). (Fig.10)

    EXHAUST GAS TREATMENT SYSTEM
    6.
    发明专利
    EXHAUST GAS TREATMENT SYSTEM 未知

    公开(公告)号：CA2972861A1

    公开(公告)日：2016-09-29

    申请号：CA2972861

    申请日：2016-03-24

    Applicant: BASF CORP

    Inventor： YANG XIAOFAN ,  XUE WEN-MEI ,  HOCHMUTH JOHN K ,  SCHLADT MATTHEW J ,  LI YUEJIN

    IPC: B01D53/94 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J29/04 ,  B01J29/85 ,  F01N3/20

    Abstract: Described are exhaust gas treatment systems for treatment of a gasoline engine exhaust gas stream containing NOx, particulate matter, and sulfur. The exhaust gas treatment system comprises: one or more catalytic articles selected from a three-way conversion catalyst (TWC), a lean NOx trap (LNT), and an integrated LNT-TWC; a platinum-containing catalytic article downstream from the one or more catalytic articles; and one or more selective catalytic reduction (SCR) catalytic articles immediately downstream from the platinum-containing catalytic article, the one or more SCR catalytic articles including a molecular sieve. The system stabilizes the SCR catalytic article from poisoning by sulfur.

    EXHAUST GAS TREATMENT CATALYSTS
    8.
    发明专利
    EXHAUST GAS TREATMENT CATALYSTS 未知

    公开(公告)号：ZA201801821B

    公开(公告)日：2021-07-28

    申请号：ZA201801821

    申请日：2018-03-19

    Applicant: BASF CORP ,  N E CHEMCAT CORP

    Inventor： ZHENG XIAOLAI ,  DEEBA MICHEL ,  YANG XIAOFAN ,  FU QI ,  WASSERMANN KNUT ,  NAGATA MAKOTO ,  KANNO YASUHARU ,  NAKAYAMA HIROKI

    Abstract: Described are catalysts effective to abate NOx, hydrocarbons, and carbon monoxide from a gasoline engine exhaust gas. Such catalysts include a substrate having a first and second material disposed thereon, the first material effective to catalyze selective catalytic reduction of nitrogen oxides in the presence of ammonia and the second material effective to abate hydrocarbons and carbon monoxide, the first material comprising a molecular sieve promoted with copper and/or iron in a low loading, the second material comprising at least one oxide of Ni, Fe, Mn, Co, and Cu on a support selected from oxides of Ce, Ce—Zr, Zr, Mn, Pr and combinations thereof. Also described are gasoline engine exhaust gas treatment systems and methods of treating exhaust gas from a gasoline engine.

    DESULFATION METHOD FOR SCR CATALYST
    9.
    发明专利
    DESULFATION METHOD FOR SCR CATALYST 未知

    公开(公告)号：CA3019364A1

    公开(公告)日：2017-10-05

    申请号：CA3019364

    申请日：2017-03-28

    Applicant: BASF CORP

    Inventor： YANG XIAOFAN ,  TANG WEIYONG ,  ZHANG ZE

    IPC: B01J38/04 ,  B01D53/94 ,  B01J29/06 ,  B01J29/072 ,  B01J29/70 ,  B01J29/72 ,  B01J29/90 ,  F01N3/20

    Abstract: The present invention provides methods for low temperature desulfating sulfur-poisoned SCR catalysts, and emission control systems adapted to apply such desulfating methods, in order to regenerate catalytic NOx conversion activity. The methods are adapted for treating an SCR catalyst to desorb sulfur from the surface of the SCR catalyst and increase NOx conversion activity of the SCR catalyst, the treating step including treating the SCR catalyst with a gaseous stream comprising a reductant for a first treatment time period and at a first treatment temperature, wherein the first treatment temperature is about 350°C or less, followed by a second treatment time period and a second treatment temperature higher than the first treatment temperature, wherein the molar ratio of reductant to NOx during the treating step is about 1.05:1 or higher.

    Composição de catalisador, sistema adaptado para aquecer um material de catalisador e método para tratar emissões de um motor de combustão interna
    10.
    发明专利
    Composição de catalisador, sistema adaptado para aquecer um material de catalisador e método para tratar emissões de um motor de combustão interna 未知

    公开(公告)号：BR112018073135B1

    公开(公告)日：2022-05-10

    申请号：BR112018073135

    申请日：2017-05-09

    Applicant: BASF CORP

    Inventor： MATTHEW TYLER CAUDLE ,  YANG XIAOFAN

    IPC: B01D53/86 ,  B01J23/10 ,  B01J35/00 ,  F01N3/20

    Abstract: a invenção fornece uma composição de catalisador, que inclui uma mistura de partículas cataliticamente ativas e um material magnético, como nanopartículas de óxido de ferro superparamagnéticas, capaz de aquecimento indutivo em resposta a um campo eletromagnético alternado aplicado. as partículas cataliticamente ativas incluirão tipicamente um metal básico, metal do grupo da platina, óxido de metal básico ou de metais do grupo da platina, ou combinações dos mesmos, e serão adaptadas para uso em vários sistemas catalíticos como catalisadores de oxidação diesel, filtros de fuligem catalisados, armadilhas de nox pobres, catalisadores de redução catalítica seletiva, catalisadores de oxidação de amônia ou catalisadores de três vias. a invenção ainda inclui um sistema e método para aquecer um material de catalisador, que inclui um artigo catalisador que inclui a composição de catalisador e um condutor para receber corrente e gerar um campo eletromagnético alternado em resposta a isto, o condutor posicionado de modo que o campo eletromagnético alternado gerado é aplicado a pelo menos uma porção do material magnético.

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