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    Production of hydrothermally stable CHA zeolites
    1.
    发明授权
    Production of hydrothermally stable CHA zeolites 有权

    公开(公告)号：US11103857B2

    公开(公告)日：2021-08-31

    申请号：US16296907

    申请日：2019-03-08

    申请人： Joshua Pacheco ,  Bjorn Moden

    发明人： Joshua Pacheco ,  Bjorn Moden

    IPC分类号： B01J29/70 ,  C01B39/48 ,  B01J35/10 ,  B01J37/04 ,  B01J37/08 ,  B01J37/30 ,  F01N3/20

    摘要： A method of producing hydrothermally stable chabazite (CHA) zeolites is disclosed. The disclosed method is based on the use of reaction mixtures that (1) are essentially void of alkali metal cations and (2) contain the N,N,N-trimethyl-1-adamantyl ammonium (TMAda+) organic as the sole OSDA. The disclosed method results in a higher crystalline CHA zeolite that exhibits hydrothermal stability. There is also disclosed a zeolite material having a CHA-type framework structure made by the disclosed method. A method of selective catalytic reduction of NOx in exhaust gas using the material described herein is also disclosed.

    Microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure and methods of making and using same
    7.
    发明授权
    Microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure and methods of making and using same 有权
    包含具有8环孔开口结构的分子筛或沸石的微孔结晶材料及其制备和使用方法

    公开(公告)号：US07645718B2

    公开(公告)日：2010-01-12

    申请号：US12055639

    申请日：2008-03-26

    申请人： Hong-Xin Li ,  William E. Cormier ,  Bjorn Moden

    发明人： Hong-Xin Li ,  William E. Cormier ,  Bjorn Moden

    IPC分类号： B01J27/182

    CPC分类号： B01D53/9418 ,  B01D2251/2062 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01J29/85 ,  B01J2229/18

    摘要： There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.

    摘要翻译： 公开了一种水热稳定的微孔结晶材料，其包含具有8环孔开口结构的分子筛或沸石，例如SAPO-34或硅铝酸盐沸石，能够在热处理后保持其表面积和微孔体积的特定百分比 和水分，例如其表面积的至少80％，并且在高达10体积％的水蒸气存在下，暴露于高达900℃的温度下，微孔体积为1至16小时。 还公开了使用所公开的结晶材料的方法，例如在排气中的NOx的SCR中，以及制造这种材料的方法。

    NOVEL MICROPOROUS CRYSTALLINE MATERIAL COMPRISING A MOLECULAR SIEVE OR ZEOLITE HAVING AN 8-RING PORE OPENING STRUCTURE AND METHODS OF MAKING AND USING SAME
    9.
    发明申请
    NOVEL MICROPOROUS CRYSTALLINE MATERIAL COMPRISING A MOLECULAR SIEVE OR ZEOLITE HAVING AN 8-RING PORE OPENING STRUCTURE AND METHODS OF MAKING AND USING SAME 有权
    包含具有8环开孔结构的分子筛或沸石的新型微晶材料及其制备和使用方法

    公开(公告)号：US20080241060A1

    公开(公告)日：2008-10-02

    申请号：US12055639

    申请日：2008-03-26

    申请人： Hong-Xin Li ,  William E. Cormier ,  Bjorn Moden

    发明人： Hong-Xin Li ,  William E. Cormier ,  Bjorn Moden

    IPC分类号： B01D53/94 ,  C01B39/00 ,  C01B15/16

    CPC分类号： B01D53/9418 ,  B01D2251/2062 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01J29/85 ,  B01J2229/18

    摘要： There is disclosed a hydrothermally stable microporous crystalline material comprising a molecular sieve or zeolite having an 8-ring pore opening structure, such as SAPO-34 or aluminosilicate zeolite, able to retain a specific percentage of its surface area and micropore volume after treatment with heat and moisture, such as at least 80% of its surface area and micropore volume after exposure to temperatures of up to 900° C. in the presence of up to 10 volume percent water vapor for a time ranging from 1 to 16 hours. Methods of using the disclosed crystalline material, such as in the SCR of NOx in exhaust gas are also disclosed, as are methods of making such materials.

    摘要翻译： 公开了一种水热稳定的微孔结晶材料，其包含具有8环孔开放结构的分子筛或沸石，例如SAPO-34或硅铝酸盐沸石，能够在热处理后保持其表面积和微孔体积的特定百分比 和水分，例如其表面积的至少80％，并且在高达10体积％的水蒸气存在下，暴露于高达900℃的温度下，微孔体积为1至16小时。 还公开了使用所公开的结晶材料的方法，例如在排气中的NO x的SCR中，以及制造这种材料的方法。