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    TUNABLE NOx ADSORBER
    1.
    发明申请
    TUNABLE NOx ADSORBER 有权

    公开(公告)号：US20220152595A1

    公开(公告)日：2022-05-19

    申请号：US17593379

    申请日：2020-03-19

    Applicant: BASF Corporation

    Inventor： Shiang SUNG ,  Markus KOEGEL ,  Gerd GRUBERT ,  Sven Jare LOHMEIER ,  Alfred PUNKE

    IPC: B01J23/656 ,  B01J23/63 ,  B01J37/03 ,  B01J37/02 ,  B01J35/04 ,  B01D53/94 ,  F01N3/20 ,  F01N3/28

    Abstract: The present disclosure is directed to a method for treating a gaseous exhaust stream containing nitrogen oxides (NOx) from a diesel or lean-burn gasoline engine following a cold-start of the engine The method involves contact of the gaseous exhaust stream with at least a low temperature NOx adsorber (LT-NA) component. The LT-NA component includes a rare earth metal component, a platinum group metal (PGM) component, and a dopant. The present disclosure is also directed to a method of modulating a NOx adsorption/desorption profile of an LT-NA composition, a NOx desorption temperature range of an LT-NA composition, or both.

    LOW TEMPERATURE CO OXIDATION CATALYST
    3.
    发明申请
    LOW TEMPERATURE CO OXIDATION CATALYST 有权

    公开(公告)号：US20220161248A1

    公开(公告)日：2022-05-26

    申请号：US17593378

    申请日：2020-03-19

    Applicant: BASF Corporation

    Inventor： Shiang SUNG ,  Markus KOEGEL

    IPC: B01J35/04 ,  B01J23/62 ,  B01J23/10 ,  B01J35/00 ,  B01J37/03 ,  B01J29/70 ,  B01J29/46 ,  B01J29/80 ,  B01J23/656 ,  B01D53/94 ,  F01N3/022 ,  F01N3/28 ,  F01N3/10 ,  F01N3/20

    Abstract: The present disclosure is directed to a low temperature carbon monoxide (LT-CO) oxidation catalyst composition for abatement of exhaust gas emissions from a lean burn engine. The LT-CO oxidation catalyst composition includes an oxygen storage component (OSC), a first platinum group metal (PGM) component, and a promoter metal, wherein the OSC is impregnated with the first PGM component and the promoter metal and the LT-CO oxidation catalyst composition is effective for oxidizing carbon monoxide (CO) and hydrocarbons (HC) under cold start conditions. Further provided are catalytic articles including the LT-CO oxidation catalyst composition, which may optionally further include a diesel oxidation catalyst (DOC) composition (giving an LT-CO/DOC article). Further provided is an exhaust gas treatment system including such catalytic articles, and methods for reducing a HC or CO level in an exhaust gas stream using such catalytic articles.

    EXHAUST TREATMENT SYSTEM FOR AMMONIA-FUELED VEHICLES
    6.
    发明申请
    EXHAUST TREATMENT SYSTEM FOR AMMONIA-FUELED VEHICLES 有权

    公开(公告)号：US20220323905A1

    公开(公告)日：2022-10-13

    申请号：US17807392

    申请日：2022-06-17

    Applicant: BASF Corporation

    Inventor： Shiang SUNG ,  Pushkaraj R. PATWARDHAN

    IPC: B01D53/94 ,  B01J23/58 ,  B01J23/656 ,  B01J21/04 ,  B01J29/68 ,  B01J23/44 ,  B01J23/34 ,  B01J21/12 ,  B01J29/76 ,  B01J35/00 ,  F01N3/20 ,  F01N3/10 ,  F01N3/28

    Abstract: The present disclosure is directed to an emission treatment system for NOx abatement in an exhaust stream of an ammonia-fueled engine, the emission treatment system including a selective catalytic reduction (SCR) catalyst disposed on a substrate in fluid communication with the exhaust stream, an oxidation catalyst disposed on a substrate positioned either upstream or downstream of the SCR catalyst and in fluid communication with the exhaust stream and the SCR catalyst, and optionally, one or more adsorption components disposed on a substrate positioned upstream and/or downstream of the SCR catalyst and in fluid communication with the exhaust stream and the SCR catalyst, the adsorption component chosen from low temperature NOx adsorbers (LT-NA), low temperature ammonia adsorbers (LT-AA), low temperature water vapor adsorbers (LT-WA), and combinations thereof. The disclosure further provides a related method of treatment of an exhaust gas.

    LAYERED CATALYTIC ARTICLE AND METHOD OF MANUFACTURING THE CATALYTIC ARTICLE
    9.
    发明申请
    LAYERED CATALYTIC ARTICLE AND METHOD OF MANUFACTURING THE CATALYTIC ARTICLE 有权

    公开(公告)号：US20220203339A1

    公开(公告)日：2022-06-30

    申请号：US17595335

    申请日：2020-06-23

    Applicant: BASF Corporation

    Inventor： Xiaolai ZHENG ,  Aleksei VJUNOV ,  Michel DEEBA ,  Shiang SUNG ,  Pascaline TRAN

    IPC: B01J23/46 ,  B01J35/00 ,  B01J37/03 ,  B01J37/08 ,  B01J23/44 ,  B01J21/04 ,  B01J23/10 ,  B01J35/04 ,  B01J23/02 ,  B01D53/94 ,  F01N3/28 ,  F01N3/10 ,  F01N13/00

    Abstract: The presently claimed invention provides a layered catalytic article and an exhaust system. The catalytic article comprises a first layer comprising platinum, a first platinum group metal component other than platinum, a ceria-alumina composite, and an oxygen storage component; wherein platinum is supported on the ceria-alumina component; the platinum group metal component is selected from palladium, rhodium or a combination thereof and the platinum group metal component is supported on the oxygen storage component; a second layer comprising a second platinum group metal component; and a refractory alumina component, an oxygen storage component or a combination thereof; wherein the second platinum group component is selected from platinum, palladium, rhodium or a combination thereof; and a substrate, wherein the amount of platinum is 10 to 80 wt. %, based on the total weight of platinum, palladium and rhodium. The presently claimed invention also provides a process for the preparation of a layered catalytic article and use of the catalytic article and the exhaust system for purifying a gaseous exhaust stream comprising hydrocarbons, carbon monoxide, and nitrogen oxides.

    MONOLITHIC CATALYSTS FOR EPOXIDATION
    10.
    发明申请
    MONOLITHIC CATALYSTS FOR EPOXIDATION 有权

    公开(公告)号：US20210331136A1

    公开(公告)日：2021-10-28

    申请号：US16479840

    申请日：2018-01-22

    Applicant: BASF CORPORATION

    Inventor： Shiang SUNG ,  Steven GAIK ,  Marco BOSCH ,  Andrey KARPOV

    IPC: B01J19/24 ,  B01J23/50 ,  B01J23/78 ,  B01J35/04 ,  B01J37/02 ,  B01J8/04 ,  C07D301/03

    Abstract: A catalyst bed contains one or more segments of monolithic catalyst, wherein the monolithic catalyst includes a mono-lithic honeycomb structure and a layer of catalyst coating the honeycomb structure; the honeycomb structure contains a plurality of channels aligned side by side; and each channel includes an inlet positioned at a first terminus of the channel, an outlet positioned at a second terminus of the channel, and openings positioned along the channel in the direction of fluid flow through the channel for transverse fluid flow in and/or out of the channel.

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