Chia Nan University of Pharmacy & Science Institutional Repository:Item 310902800/22238
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 17330/19636 (88%)
Visitors : 4595380      Online Users : 345
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.cnu.edu.tw/handle/310902800/22238


    Title: Enhance Efficiency of Tetraoctylammonium Fluoride Applied to Ultrasound-Assisted Oxidative Desulfurization (UAOD) Process
    Authors: Meng-Wei Wan
    Teh-Fu Yen
    Contributors: 環境工程與科學系
    Keywords: Desulfurization
    Phase transfer agent
    Tetraoctylammonium fluoride
    Ultrasound-assisted oxidative desulfurization
    Diesel fuel
    Date: 2007-03
    Issue Date: 2010-01-15 11:18:06 (UTC+8)
    Abstract: The ultrasound-assisted oxidative desulfurization (UAOD) process has been applied to a number of diesel fuels containing varying amounts of sulfur content. The transition metal complex and quaternary ammonium salts (QAS) phase transfer agents have been applied with aqueous hydrogen peroxide as oxidizing agent. High yield of 3-bromobenzothiophene, and 2-bromobenzothiphene sulfone has been found from phase transfer agents containing tetraoctylammonium bromide. No contaminates such as bromo compound derivates had been isolated when the new fluoride phase transfer agent was used. Selectivity was particularly high for this process as demonstrated by selective ions mass spectrometry. The experiment also demonstrated that the catalyst could be recovered for reuse. Furthermore, the hydrogen peroxide provides a good performance, and the oxidation will proceed as low as 0.25%.
    Relation: Applied Catalysis A: General 319(1): p.237-245
    Appears in Collections:[Dept. of Environmental Engineering and Science (including master's program)] Periodical Articles

    Files in This Item:

    File SizeFormat
    0KbUnknown811View/Open


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


    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback