|本期目录/Table of Contents|

[1]谢伟,李瑞,吕效平,等.脉冲式超声对污油中水滴聚并效果的影响[J].南京工业大学学报(自然科学版),2015,37(06):94-98.[doi:10.3969/j.issn.1671-7627.2015.06.017]
 XIE Wei,LI Rui,LYU Xiaoping,et al.Effects of pulsed ultrasound on coalescence of water droplets in a waste oil emulsion[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(06):94-98.[doi:10.3969/j.issn.1671-7627.2015.06.017]
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脉冲式超声对污油中水滴聚并效果的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
37
期数:
2015年06期
页码:
94-98
栏目:
出版日期:
2015-11-20

文章信息/Info

Title:
Effects of pulsed ultrasound on coalescence of water droplets in a waste oil emulsion
文章编号:
1671-7627(2015)06-0094-05
作者:
谢伟12李瑞2吕效平1韩萍芳1
1.南京工业大学 超声化学工程研究所,江苏 南京 210009; 2.扬州工业职业技术学院,江苏 扬州 225127
Author(s):
XIE Wei12LI Rui2LYU Xiaoping1HAN Pingfang1
1.Institute of Sonochemical Engineering,Nanjing Tech University,Nanjing 210009,China; 2.Yangzhou Polytechnic Institute,Yangzhou 225127,China
关键词:
脉冲式超声 聚并 污油 水滴
Keywords:
pulsed ultrasound coalescence waste oil water droplet
分类号:
TE624
DOI:
10.3969/j.issn.1671-7627.2015.06.017
文献标志码:
A
摘要:
本文以炼油厂污油为研究对象,探索脉冲式超声对污油中水滴的聚并效果。比较污油中水滴直径的分布情况,发现超声对污油中水滴聚并作用效果明显,且脉冲式超声作用效果好于传统连续式超声作用效果。另外,重点考察超声类型、辐射时间、周期、脉宽、频率和声强对污油中水滴平均粒径的影响,并得到了脉冲超声破乳的最佳操作条件:脉冲式超声辐射,频率20 kHz、辐射时间6 min、周期80 ms、脉宽12 ms、超声声强0.4 W/m2。在最佳实验条件下,污油中水滴平均粒径由22 μm增至76 μm,污油中水的质量分数由60%降至7%,达到了炼油厂对污油脱水后水含量的要求(含水质量分数<10%)。
Abstract:
The effects of pulsed ultrasound on coalescence of water droplets in refinery waste oil emulsion were investigated.The comparison of evolutions of water droplet sizes distribution showed that ultrasound affected coalescence of water droplets in the emulsion, and the effect of the pulsed ultrasound on the coalescence was more significant than that of continuous ultrasound.The effects of ultrasonic parameters, such as the type of ultrasonic irradration,irradiation time,cycle time,pulse width,frequency,and acoustic intensity on coalescence of water droplets were discussed.Results showed that the optimum conditions for the separation of waste oil with ultrasound were as follows:frequency of 20 kHz,irradiation time of 6 min,cycle time of 80 ms,pulse width of 12 ms,and acoustic intensity of 0.4 W/m2.Under the optimum conditions,the average radius of water droplets increased from 22 μm to 76 μm and water content in crude oil emulsion decreased from 60% to 7%.Thus,it satisfied the requirements of dehydration for refinery.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-07-05
作者简介:谢伟(1979—),男,江苏常州人,讲师,博士,主要研究方向为原油、污油超声破乳脱水; 吕效平(联系人),教授,E-mail:xplu@njtech.edu.cn.
引用本文:谢伟,李瑞,吕效平,等.脉冲式超声对污油中水滴聚并效果的影响[J].南京工业大学学报:自然科学版,2015,37(6):94-98..
更新日期/Last Update: 2015-11-20