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首页> 外文期刊>Journal of engineering thermophysics >Flow Pattern of Miscellaneous Liquids with Varied Flow Rates on Structured Corrugation SiC Foam Packing
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Flow Pattern of Miscellaneous Liquids with Varied Flow Rates on Structured Corrugation SiC Foam Packing

机译：杂项液体的流动模式，具有不同流量率的结构化波纹SiC泡沫包装

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摘要

Although the unique liquid behavior renders structured corrugation SiC foam packing (SCFP-SiC) a great alternative in distillation, the separation efficiency depends heavily on capacity and liquid property. The aim of this work is to discuss the change of flow pattern with miscellaneous liquids at different flow rates in order to explain the performance of SCFP-SiC in a distillation column. The ultraviolet photography and pulse tracer method were used to estimate the effective flow area and the resident time, respectively. The experimental results indicate that the liquid flow pattern on SCFP-SiC consists of streamflow and transfusion flow. The stream flow can be enlarged by the increase of liquid flow rate so that the effective flow area is reduced, resulting in the decrease of separation efficiency at high liquid capacity. What is more, there exists a vast difference of flow pattern between polar liquid (e.g., water and acetic acid) and nonpolar liquid (e.g., cyclohexane). Transfusion flow of the former is much less than that of the latter, causing the poor performance when separating polar system. Therefore, the liquid capacity and type should be evaluated firstly in the use of SCFP-SiC.
机译：虽然独特的液体行为使结构化波纹SiC泡沫包装（SCFP-SIC）在蒸馏中的巨大替代方案，但分离效率大大取决于容量和液体性能。这项工作的目的是讨论不同流速以杂项液体的流动模式的变化，以解释SCFP-SiC在蒸馏塔中的性能。使用紫外线拍摄和脉冲示踪方法分别估计有效流动面积和驻留时间。实验结果表明SCFP-SiC上的液体流动模式包括流流和输液流。流动流动可以通过增加液体流速而放大，使得减小有效流动面积，导致高液体容量下的分离效率降低。更重要的是，极性液体（例如水和乙酸）和非极性液体（例如环己烷）之间存在巨大流动模式差异。前者的输血流量远小于后者的流动，在分离极性系统时会导致性能差。因此，首先在使用SCFP-SiC时首先评估液体容量和类型。

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    Zhao Z.; Li H.; Li X.; Pavlenko A. N.; Gao X.;

  • 作者单位

    Tianjin Univ Collaborat Innovat Ctr Chem Sci &

    Engn Tianjin Natl Engn Res Ctr Distillat Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Collaborat Innovat Ctr Chem Sci &

    Engn Tianjin Natl Engn Res Ctr Distillat Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Collaborat Innovat Ctr Chem Sci &

    Engn Tianjin Natl Engn Res Ctr Distillat Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Russian Acad Sci Siberian Branch Kutateladze Inst Thermophys Pr Akad Lavrenteva 1 Novosibirsk 630090 Russia;

    Tianjin Univ Collaborat Innovat Ctr Chem Sci &

    Engn Tianjin Natl Engn Res Ctr Distillat Technol Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

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  • 中图分类 热力工程、热机;
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