...
首页> 外文期刊>International journal of energetic materials and chemical propulsion >CATALYTIC IGNITION OF COLD HYDROGEN/OXYGEN MIXTURES FOR SPACE PROPULSION APPLICATIONS
【24h】

CATALYTIC IGNITION OF COLD HYDROGEN/OXYGEN MIXTURES FOR SPACE PROPULSION APPLICATIONS

机译:用于空间推进应用的冷氢/氧混合物的催化点火

获取原文
获取原文并翻译 | 示例
           

摘要

An experimental bench test was conducted to evaluate the catalytic ignition of gaseous hydrogen and oxygen mixtures at low temperature by injection of cold gas mixtures on the catalytic microreac-tor. The selected supports for this study were cylindrical monoliths; i.e., cordierite honeycomb (600 channels per square inch) manufactured by CT1 Company (Ceramiques & Techniques Industrielles). These materials were coated with porous γ-alumina to increase their specific surface area, and then impregnated by different metal precursors (Ir, Rh, Pt, and Ir-Rh). The premix gas reacted with the catalyst surface upon arrival in the combustion chamber. The first results led to a primary selection of different catalysts that allowed comparison with the different active phases. Based on the maximum temperature reached by the gas flow after a given time, we can sort the active phases as follows: Ir > Ir-Rh> Pt > Rh.
机译:通过在催化微反应器上注入冷气体混合物,进行了实验台架试验,以评估低温下气态氢和氧混合物的催化点火。本研究中选择的支撑物是圆柱体。即CT1公司(Ceramiques&Techniques Industrielles)生产的堇青石蜂窝(每平方英寸600个通道)。这些材料涂有多孔γ-氧化铝以增加其比表面积,然后用不同的金属前体(Ir,Rh,Pt和Ir-Rh)浸渍。预混气体在到达燃烧室时与催化剂表面反应。最初的结果导致对不同催化剂的初步选择,从而可以与不同的活性相进行比较。根据给定时间后气流达到的最高温度,我们可以对活动相进行如下排序:Ir> Ir-Rh> Pt> Rh。

著录项

  • 来源
  • 作者单位

    Japan Aerospace Exploration Agency (JAXA), 3-1-1 Yoshinodai, Chuo-Ku, Sagamihara, Kanagawa 252-5210, Japan;

    Institut des Milieux et des Materiaux de Poitiers (IC2MP), University of Poitiers, 86022 Poitiers Cedex, France;

    Institut des Milieux et des Materiaux de Poitiers (IC2MP), University of Poitiers, 86022 Poitiers Cedex, France;

    Institut des Milieux et des Materiaux de Poitiers (IC2MP), University of Poitiers, 86022 Poitiers Cedex, France;

    French Space Agency, Centre National d'Etudes Spatiales (CNES), 91023 Evry Cedex, Prance;

    Air Liquide, Division des Techniques Avancees, 38360 Sassenage, France;

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

    catalytic ignition; cold mixtures; monolithic catalysts;

    机译:催化点火冷混合物;整体催化剂;

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