聚结元件性质对水-柴油混合液聚结分离效果的影响

摘要

研究了聚结元件空隙率、润湿性、长度以及乳化态液滴的停留时间对水-柴油混合液聚结分离效果的影响，其中通过轴向压缩获得了不同的空隙率，而通过改变流速获得不同的停留时间。结果表明，亲水性、空隙率较低的聚结元件具有更好的分离效果；聚结元件的长度存在着1个最小值L_min，只有实际聚结元件长度大于该值时才会有较好的分离效果，但此时继续增长聚结元件并不会明显提升分离效果。

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	张哲
	王日杰
	杨晓霞

关键词：聚结分离；空隙率；润湿性；聚结元件长度；停留时间

Abstract：

Effects of porosity, wettability, length of coalescing elements and retention time of the emulsified water droplets on separation performance of water-in-diesel emulsion were investigated. Porosity was adjusted by compression and different retention time could be achieved by altering flow rate and element length. The results show that hydrophilic coalescing elements with low porosity exhibits better performance and there exists a minimal value for element length, L_min, and the length of the actual element must be larger than that in order to achieve the best performance. Elongating coalescing elements whose length has already been larger than that of the minimal element, however, will not further improve separation performance.

Keywords： coalescing separation； porosity； wettability； coalescing elements&rsquo length； retention time

Received 2014-05-31;

Corresponding Authors: 杨晓霞,E-mail:xxytju@yahoo.cn。 Email: xxytju@yahoo.cn

About author: 张哲(1988-),男,硕士研究生,现从事油水乳状液的聚结分离应用方面的研究。

引用本文:

张哲, 王日杰, 杨晓霞.聚结元件性质对水-柴油混合液聚结分离效果的影响[J]. 化学工业与工程, 2016,33(6): 44-48

Zhang Zhe, Wang Rijie, Yang Xiaoxia.Effect of Coalescing Elements' Properties on Separation Performance of Water-in-Diesel Emulsion[J]. Chemcial Industry and Engineering, 2016,33(6): 44-48

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