• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Monolithic Mn/Ce-based catalyst of fibrous ceramic membrane for complete oxidation of benzene
【24h】

Monolithic Mn/Ce-based catalyst of fibrous ceramic membrane for complete oxidation of benzene

机译：纤维陶瓷膜单片锰/铈基催化剂完全氧化苯

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Herein, a series of monolithic Mn/Ce-based catalyst of ceramic membranes (CMs) were prepared through impregnation method for volatile organic compounds (VOCs) removal. The porous fibrous CMs with a sinter-locked network structure were fabricated by molding method in a feasible sintering process. Then, the catalytic CMs were systematically analyzed by using specific analytical techniques. The results showed that the fibrous CMs possessed a unique interconnected and uniform pore structure, and MnOx-CeO2 active phases were homogenously dispersed into the porous CMs support. The catalytic activity of samples was measured by using benzene as target VOCs. The results revealed that all catalytic CMs were active for oxidation of benzene. Significantly, the catalytic performance was promoted by introducing Ce species into MnOx. Among all, MnOx-CeO2-3:1 catalyst exhibited the lowest 90% benzene conversion temperature (T-90) at 244 degrees C and high stability with continuous benzene stream in the presence of 90 vol.% (20 degrees C) water vapor under a gaseous hourly space velocity (GHSV) of 5000h(-1), owing to the lower-temperature reducibility and the abundant active oxygen (O-Ads.) with synergetic effect of MnOx and CeO2. The results indicated a promising way to design a high efficiency dual functional CMs for the industrial application of removal VOCs while controlling particulate matters (PMs) from hot gases.
机译：本文通过浸渍法制备了一系列的整体式陶瓷膜Mn / Ce基催化剂，用于挥发性有机化合物（VOCs）的去除。在可行的烧结工艺中，采用成型法制备了具有网络互锁结构的多孔纤维CM。然后，使用特定的分析技术对催化性CM进行了系统的分析。结果表明，纤维状CM具有独特的相互连接且均匀的孔结构，并且MnOx-CeO2活性相均匀分散在多孔CMs载体中。样品的催化活性通过使用苯作为目标VOC进行测量。结果表明，所有催化CM均对苯氧化具有活性。值得注意的是，通过将Ce引入MnOx可以提高催化性能。其中，MnOx-CeO2-3：1催化剂在244摄氏度时表现出最低的90％苯转化温度（T-90），并且在存在90体积％（20摄氏度）水蒸气的情况下对连续的苯流具有高稳定性气体小时空速（GHSV）为5000h（-1）时，由于较低的温度还原性和丰富的活性氧（O-Ads。）以及MnOx和CeO2的协同作用。结果表明，设计一种高效的双功能CMs的前景广阔的方法，可用于去除VOC的工业应用，同时控制热气中的颗粒物（PMs）。

著录项

  • 来源
    《Applied Surface Science》 |2018年第31期|594-601|共8页
  • 作者

    Cuo Zhaxi; Den Yuzhou; Li Wenhui; Peng Shengpan; Zhao Feng; Liu Haidi; Chen Yunfa;

  • 作者单位

    Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China;

    Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ceramic membranes; Porous structure; Monolithic Mn/Ce-based catalyst; Benzene oxidation;

    机译：陶瓷膜;多孔结构;Mn / Ce单相催化剂;苯氧化;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号