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    王新平

    • 教授     博士生导师   硕士生导师
    • 性别:男
    • 毕业院校:中国科学院长春应用化学研究所
    • 学位:博士
    • 所在单位:化工学院
    • 学科:物理化学
    • 电子邮箱:dllgwxp@dlut.edu.cn

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    Effect of sodium in ferrierite on selective catalytic reduction of NO by acetylene

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    论文类型:期刊论文

    发表时间:2008-09-01

    发表刊物:CATALYSIS LETTERS

    收录刊物:EI、SCIE、Scopus

    卷号:125

    期号:1-2

    页面范围:123-129

    ISSN号:1011-372X

    关键字:sodium; FER; nitrosonium ions; nitrate; acetylene; selective catalytic NO reduction

    摘要:Influence of sodium in ferrierite (HFER) zeolite on selective catalytic reduction of NO by acetylene (C(2)H(2)-SCR) was investigated. NO(x) -TPD and FT-IR indicated that small amount of sodium exchanged into the proton-form zeolite with an exchange level of about 11.8% is beneficial for the title reaction by accelerating active nitrate species formation on catalyst surface from NO(2) and by suppressing the reductant combustion. Nevertheless, no further improved catalytic performance in C(2)H(2)-SCR could be observed by a larger amount of sodium exchanged into HFER due to some inactive nitrate species formed on the zeolite. Instead, activity of the zeolite for C(2)H(2)-SCR was drastically reduced, since the capacity of the zeolite for catalyzing NO oxidation and accelerating active NO(+) species formation was remarkably depressed.