NOVEL MICROPOROUS CRYSTALLINE MATERIAL COMPRISING A MOLECULAR SIEVE OR ZEOLITE HAVING AN 8-RING PORE OPENING STRUCTURE AND METHODS OF MAKING AND USING SAME
    8.
    发明公开
    NOVEL MICROPOROUS CRYSTALLINE MATERIAL COMPRISING A MOLECULAR SIEVE OR ZEOLITE HAVING AN 8-RING PORE OPENING STRUCTURE AND METHODS OF MAKING AND USING SAME 审中-公开
    包含具有8-环孔开口结构的分子筛或沸石的新颖微孔结晶材料及其制备和使用方法

    公开(公告)号:EP3189893A1

    公开(公告)日:2017-07-12

    申请号:EP17156371.1

    申请日:2008-03-26

    申请人: PQ Corporation

    IPC分类号: B01J29/85 B01D53/94

    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 micro pore 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 NO x 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,其能够保持特定百分比的表面积和微孔体积, 例如至多80%的表面积和微孔体积,在高达10%体积的水蒸汽存在下暴露于高达900℃的温度下1-16小时。 还公开了使用所公开的晶体材料的方法,例如在排气中的NO x的SCR中,还公开了制造这种材料的方法。