Study and Development of a Mini-Tube Gas Separator Utilizing the Soret Effect
Study and Development of a Mini-Tube Gas Separator Utilizing the Soret Effect
复制标题
利用索雷效应的微型管气体分离器的研究与开发
DOI：
10.1299/jtst.7.31
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发表时间：
2012
影响因子：
1.2
通讯作者：
N. Ono
中科院分区：
文献类型：
--
作者：
Shunsuke Kuwatani;S. Watanabe;N. Ono
Soret效应是温度梯度引起浓度梯度的现象。在这项研究中，我们尝试了一种简单的技术，从气体混合物中分离氢气，利用Soret效应。将氢气和二氧化碳的气体混合物引入金属微型管中，在该金属微型管中，在垂直于流动的方向上建立温度梯度。该实验表明，氢气实际上是从气体混合物中分离出来的，尽管用本发明的装置分离非常小。根据实验结果和计算流体动力学（CFD）分析，我们认为，向加热壁移动的高氢浓度层非常薄。为了提高分离效率，必须提取在壁附近流动的高浓度氢。
The Soret effect is a phenomenon in which a temperature gradient gives rise to a concentration gradient. In this study, we attempted a simple technique for the separation of hydrogen from a gas mixture by utilizing the Soret effect. A gas mixture of hydrogen and carbon dioxide was introduced into a metal mini tube in which a temperature gradient was established in the direction normal to the flow. The experiment demonstrated that hydrogen was actually separated from the gas mixture, although the separation was very small with the present apparatus. From results of the experiments and computational fluid dynamics (CFD) analysis, we believe that the layer of high hydrogen concentration that moved toward the heating wall was very thin. It would be necessary to extract the high concentration of hydrogen flowing near the wall to increase the separation efficiency.