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[1]顾善龙,张贤中,谢伟,等.超声频率对炼厂污油破乳脱水的影响[J].南京工业大学学报(自然科学版),2013,35(05):72-75.[doi:10.3969/j.issn.1671-7627.2013.05.014]
 GU Shanlong,ZHANG Xianzhong,XIE Wei,et al.Effects of ultrasonic frequency on demulsification and dewatering of refinery waste oil[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(05):72-75.[doi:10.3969/j.issn.1671-7627.2013.05.014]
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超声频率对炼厂污油破乳脱水的影响()
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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:
35
期数:
2013年05期
页码:
72-75
栏目:
出版日期:
2013-09-20

文章信息/Info

Title:
Effects of ultrasonic frequency on demulsification and dewatering of refinery waste oil
文章编号:
1671-7627(2013)05-0072-04
作者:
顾善龙1张贤中2谢伟1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. 南京超圣化科技有限责任公司,江苏 南京 210009
Author(s):
GU Shanlong1ZHANG Xianzhong2XIE Wei1LÜ Xiaoping1HAN Pingfang1
1. Institute of Sonochemical Engineering, Nanjing University of Technology,Nanjing 210009,China; 2. Nanjing Chaoshenghua Technology Co.Ltd.,Nanjing 210009,China
关键词:
超声 频率 污油 破乳 脱水
Keywords:
ultrasound frequency waste oil demulsification dewatering
分类号:
TE624TB559
DOI:
10.3969/j.issn.1671-7627.2013.05.014
文献标志码:
A
摘要:
针对中石化某炼油厂污油脱水难以达到规定要求(处理后含水量<10%)的现状,采用超声进行污油破乳脱水研究。实验选择20、40和80 kHz 3种频率的超声分别处理含水率60%(体积比)的污油,着重考察超声频率对污油水滴粒径、黏度、油水界面张力以及脱水效果的影响,结果表明:污油经20、40和80 kHz 3种频率的超声作用,脱后含水率分别降为5.6%、6.8%和8%。在超声激励电压相同的条件下,超声波频率越低,污油黏度、界面张力下降越大,污油中水滴平均粒径增大得越多,越有利于污油破乳脱水。另外通过显微镜观察,并对超声作用前后的水滴粒径变化进行分析,发现高频超声有利于小粒径水滴的凝聚,低频超声有利于大粒径水滴的凝聚。
Abstract:
Because the dehydration of refinery waste oil from a refinery of Sinopec was hard to reach requirement(water content less than 10%), a ultrasonic technology was studied in laboratory to intensify demulsification and dewatering of the waste oil. The effects of the ultrasonic frequency on the water drop size, viscosity, oil-water interfacial tension and dehydration rate were discussed. The waste oil containing 60%(in volume)water was treated with three kinds of frequency ultrasound(20,40 and 80 kHz)and the water volume fractions in oil were reduced to 5.6%,6.8%,8%,respectively. Under the same excitation voltage condition, the lower the ultrasonic frequency, the stronger the ultrasonic intensity,the greater the viscosity and oil-water interface tension reduced. The more the water drop size enlarged, the easier the demulsification and dewatering of waste oil was. In addition, the results of the microscope observation and analysis showed that the high frequency ultrasound was better for cohesion of smaller water droplets, and the low frequency ultrasound was better for cohesion of larger water droplets.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2012-10-11
作者简介:顾善龙(1988—),男,江苏泰州人,硕士生,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@njut.edu.cn..
更新日期/Last Update: 2013-09-07