Micromixing efficiency of opposed confined impinging jets reactor base on ultrafine energy-containing materials

被引：0
|
作者：
Liang P. [1 ]
Zhang A. [1 ]
Chen J. [1 ]
Guo X. [1 ]
Liu S. [1 ]
机构：
[1] Shanxi North Xing’an Chemical Industry Co. Ltd, Shanxi, Taiyuan
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2020年 / 39卷 / S2期
关键词：
energy-containing materials; micromixing; opposed confined impinging jets reactor; segregation index; ultrafine particles;
D O I：
10.16085/j.issn.1000-6613.2020-0896
中图分类号：
学科分类号：
摘要：
Because of the advantages of high heat transfer and mixing efficiency, the ultrafine particles with small particle size, uniform and narrow distribution range can be prepared by opposed confined impinging jets reactor. The effect of jet velocity and structure size on micromixing quality was investigated by using iodide-iodate parallel-competitive reactions. Micromixing efficiency was compared with that of the mixing chamber size by the same proportion to one time. The experimental results show that the segregation index decreases with jet velocity increases, so that micromixing quality enhances. The increasing of nozzle distance to nozzle diameter ratio results increasing of segregation index, and micromixing efficiency decreases. As mixing chamber height and outlet size increases, segregation index first increases and then reduces. The effect of mixing chamber height on micromixing efficiency is more significant than that of mixing chamber outlet size. The value of the segregation index in magnifying opposed confined impinging jets reactor is 2.4 times larger than that of original opposed confined impinging jets reactor, it demonstrates the significant decreasing of micromixing quality. The results can provide efficient and safe technical support for the preparation of nanocomposite energy-containing materials. © 2020, Chemical Industry Press Co., Ltd.. All rights reserved.
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页码：42 / 47
页数：5
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