English  |  正體中文  |  简体中文  |  Items with full text/Total items : 70585/70585 (100%)
Visitors : 23292890      Online Users : 538
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/26502

    Title: Effect of additives on Pd/Al2O3 for CO and propylene oxidation at oxygen-deficient conditions
    Authors: Lee,CH;Chen,YW
    Contributors: 化學工程與材料工程學系
    Date: 1998
    Issue Date: 2010-06-29 17:29:32 (UTC+8)
    Publisher: 中央大學
    Abstract: The effects of additives, CeO2 and K2O, on Pd/Al2O3 for CO and C3H6 oxidation under oxygen-deficient conditions were investigated. The unpromoted Pd/Al2O3 exhibits the highest C3H6 conversion among the Pd catalysts, but its CO conversion is very low and even negative at the higher temperature (> 500 degrees C). Nevertheless, the CO conversion on Pd/Al2O3 can be significantly promoted by the addition of CeO2 and K2O. When water participates in the reaction, the CO conversions on the promoted Pd/Al2O3 catalysts can be further increased. The promotional extent of CO conversion on the Pd catalysts is in the order: Pd-K2O-CeO2/Al2O3 > Pd-K2O/Al2O3 > Pd-CeO2/Al2O3 > Pd/Al2O3. Moreover, Pd-K2O-CeO2/Al2O3 exhibits the highest CO conversion among the Pd catalysts. In addition, the test results of the monolithic catalysts also reveal that the CO conversion on PdRh/K2O/Al2O3-CeO2 is quite close to that on PtRh/Al2O3-CeO2 under the simulative gases and the ECE-40 mode driving cycle test. However, PdRh/K2O/Al2O3-CeO2 exhibits lower HC conversion due to the lower activity for alkane oxidation. (C) 1998 Elsevier Science B.V. All rights reserved.
    Appears in Collections:[化學工程與材料工程研究所] 期刊論文

    Files in This Item:

    File Description SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明