Oxygen flux and process analysis of hydrogen separation from water through mixed conducting membrane

机译：混合导电膜分离水中氢的氧气通量和过程分析。

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Hydrogen synthesis and segregation from water splitting with simultaneous partial oxidation of methane can be achieved using MIEC membranes that conduct oxygen ions and electrons. The process offers hydrocarbon free hydrogen production on the feed side of the membrane (steam side) and syn-gas on the permeate side (methane side). A composite MIECs system comprising Gd_xCe_(1-x)O_(2-x/2) (GDC) and Gd_xSr_(1-x)Ti_(1-y)Al_yO_3 (GSTA) has been used and the hydrogen flux has been estimated. The oxygen diffusion coeffcient for oxygen transport through the bulk of the membrane and surface exchange coefficient of oxygen at the solid/gas interface were obtained using electrical conductivity relaxation (ECR) experiments and the hydrogen generation flux was measured for membranes of different thicknesses, with and without surface exchange catalysts for various experimental conditions.

机译：使用传导氧离子和电子的MIEC膜可以实现氢分解和水分解以及甲烷的同时部分氧化的分离。该方法在膜的进料侧（蒸汽侧）提供无烃氢气的生产，在渗透物侧（甲烷侧）提供合成气。已经使用了包括Gd_xCe_（1-x）O_（2-x / 2）（GDC）和Gd_xSr_（1-x）Ti_（1-y）Al_yO_3（GSTA）的复合MIECs系统，并且已经估算了氢通量。使用电导率弛豫（ECR）实验获得了氧气在整个膜中的传输的氧气扩散系数和氧气在固/气界面的表面交换系数，并测量了不同厚度的膜的氢气产生通量，分别为无需在各种实验条件下使用表面交换催化剂。

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《Symposium Proceedings vol.885; Symposium on Hydrogen Cycle-Generation, Storage and Fuel Cells; 20051128-1202; Boston,MA(US)》|2005年|P.285-290|共6页
会议地点 BostonMA(US)
作者
Annamalai Karthikeyan; Hengdong Cui; Srikanth Gopalan; Uday B. Pal;
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Department of Manufacturing Engineering, Boston University 15 Saint Mary's Street, Brookline, MA 02446 USA;

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原文格式 PDF
正文语种 eng
中图分类化学电源、电池、燃料电池;
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Oxygen flux and process analysis of hydrogen separation from water through mixed conducting membrane

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