COPPER CONTAINING ZSM-34, OFF AND/OR ERI ZEOLITIC MATERIAL FOR SELECTIVE REDUCTION OF NOX
    7.
    发明申请
    COPPER CONTAINING ZSM-34, OFF AND/OR ERI ZEOLITIC MATERIAL FOR SELECTIVE REDUCTION OF NOX 审中-公开
    含有ZSM-34,OFF和/或ERI选择性还原NOX的物质

    公开(公告)号:WO2012007874A1

    公开(公告)日:2012-01-19

    申请号:PCT/IB2011/052980

    申请日:2011-07-05

    IPC分类号: B01J29/46 B01J29/56

    摘要: The present invention relates to a copper containing ZSM-34, OFF and/or ERI zeolitic material having a silica to alumina mole ratio ranging from about 4 to about 50 and a copper content, reported as Cu O, ranging from about 1 to about 10 wt.-%, based on the total weight of the cal- cined zeolitic material, and having an alkali metal content, reported as the metal oxide, ranging from about 0.7 to about 1.5 wt.-%, whereas the 750°C-aged copper containing ZSM-34, OFF and/or ERI zeolitic materialexhibits NO conversion at 200°C of at least about 75 % and at 450°C of at least about 90 %, measured at a gas hourly volume based space velocity of 30000 h - under steady state conditions at maximum NH 3 -slip conditions in a gas mixture of 500 ppm NO, 500 ppm NH 3, 10% O 2, 5% H 2 O, balance N

    摘要翻译: 本发明涉及二氧化硅与氧化铝摩尔比在约4-约50范围内的含铜ZSM-34,OFF和/或ERI沸石材料,铜含量(以CuO计)为约1至约10 基于煅烧的沸石材料的总重量,并且具有报告为金属氧化物的碱金属含量的重量百分比为约0.7至约1.5重量%,而750℃老化 含有ZSM-34,OFF和/或ERI沸石材料的铜在200℃下以至少约75%和450℃下的NO转化率至少为约90%,以气体小时体积为基准的空间速度为30000h- 在稳态条件下,在500ppm NO,500ppm NH 3,10%O 2,5%H 2 O,余量N