English  |  正體中文  |  简体中文  |  Items with full text/Total items : 63246/95943 (66%)
Visitors : 4840565      Online Users : 142
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU 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: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/88805

    Title: Design and Operation of an Experimental Three-phase Reactor for Hydrogen Generation System Using the Sodium Borohydride Hydrolysis Reaction
    Authors: 陳逸航;CHEN, Yih-Hang;PAN, Chuan-Yi;CHENG, Yang-Hsuan
    Contributors: 淡江大學化學工程與材料工程學系
    Date: 2012-07-01
    Issue Date: 2013-04-22 15:04:43 (UTC+8)
    Abstract: A novel reactor design is proposed to overcome the effects of gas generation and multiphase flow from the NaBH4 hydrolysis reaction. With a stainless mesh set in the middle of horizontal pack-bed reactor to provide gas (Gas flow from the top of the reactor) and liquid (Liquid flow from the effluent of the reactor) channels respectively, the multi-phase flow problem is reduced. First, the mathematical model of the three-phase reactor is built. The design variables of the three-phase reactor are weight of catalyst, bulk density of catalyst and gas phase volume (Prevent the liquid mist flow out through the gas channel). In this work, two different operating modes, adiabatic and isothermal, of a continuous hydrogen generation system using the NaBH4 hydrolysis reaction are explored. The feed conditions are 1.02 ml/min, 25℃ and 15wt% of NaBH4. The simulation result shown that the weight of catalyst, bulk density of catalyst and gas phase volume are 17.5 g, 1.8 g/cm3 and 50 cm3 for 100% conversion of NaBH4 which can produce around 500 ml/min hydrogen flowrate. The result is quite fitted with our experiment. Finally, a water recycled structure is proposed to collect and recycle the produced water from the PEMFC and the hydrolysis reactor back to the feed stream. The theoretical hydrogen storage of NaBH4 can change from 4wt% to 10 wt%, when the reactor inlet concentration of NaBH4 keeps at 15 wt% for using water recycled structure.
    Relation: IUMRS-ICYRAM 2012, pp.47
    Appears in Collections:[化學工程與材料工程學系暨研究所] 會議論文

    Files in This Item:

    There are no files associated with this item.

    All items in 機構典藏 are protected by copyright, with all rights reserved.

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