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高频脉冲动态电聚结显微实验研究

作者:时间:2019-12-02点击数:

全文下载:      201906005.pdf


文章编号: 1672-6987201906-0039-09DOI10.16351/j.1672-6987.2019.06.005


周衍涛, 范玉玲, 李宁, 孙治谦*, 王振波

(中国石油大学(华东) 化学工程学院,山东 青岛 266580


摘要: 高频脉冲电聚结技术是一种利用脉冲电场处理原油的电脱水技术,适用于处理含水率高的原油。设计了动态电聚结在线和离线实验装置,从显微层面研究了流动和电场参数对高频脉冲电聚结技术效果和能耗的影响。研究结果表明:随着电压的增加,电聚结效果先提升后下降;随着频率的增加,电聚结效果先提升后下降;随着脉宽比的增加,电聚结效果提升;电压、频率、脉宽比的增大都会提高能耗。流动能够促进电聚结,尤其是液滴间距离较大时,但是过高的流速会产生相反的结果,且流动对能耗基本无影响。

关键词: 高频脉冲电聚结; 电场参数; 动态实验; 显微研究


中图分类号: TQ 028.4文献标志码: A

引用格式: 周衍涛, 范玉玲, 李宁, . 高频脉冲动态电聚结显微实验研究\[J\]. 青岛科技大学学报(自然科学版), 2019406): 39-47.


ZHOU Yantao, FAN Yuling, LI Ning, et al. Microscopic experimental study on high frequency pulse dynamic electrocoalescence\[J\]. Journal of Qingdao University of Science and TechnologyNatural Science Edition), 2019, 40(6)39-47.


Microscopic Experimental Study on High Frequency Pulse

Dynamic ElectrocoalescenceZHOU Yantao, FAN Yuling, LI Ning, SUN Zhiqian, WANG Zhenbo

(College of Chemical Engineering, China University of Petroleum (Huadong), Qingdao 266580, China)


Abstract: High-frequency pulse electrocoalescence technology that applies pulse electric field is one of electric dehydration technologies. It is more suitable for crude oil with high water content. In this work, the online and offline experiments were designed to study the influence of the flow rate and the electric parameters on electrocoalescence. The results show that the electrocoalescence get into better first and then get into worse with the increase of voltage and frequency. Moreover, the increase of dusty cycle enhances electrocoalescence. Besides, the increase of the voltage, frequency and duty cycle all increase energy consumption. The flow can enhance the electrocoalescence especially for thin emulsion because the large distance between drops results in weak dipole-dipole attraction. However, the excessive flow rate causes the negative results. Besides, the energy consumption is not influenced by flow rate. The related results have provided a guidance for the future research for the mechanism of high-frequency pulsed electrical coalescence.

Key words: high frequency pulse electrocoalescence; electric parameters; dynamic experiment; microscopic study

 

收稿日期:  2018-11-30

基金项目: 国家自然科学基金项目(21406267);中央高校基本科研业务费专项资金资助项目(18CX02122AYCX2018045);重质油国家重点实验室资助项目(SLKZZ-2017013.

作者简介: 周衍涛(1995—),男,硕士研究生.*通信联系人.

 

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