Electric dehydration experiment for offshore crude oil emulsions by using high frequency/high voltage AC electric field

被引：0

作者：

Chang, Junying ^{[1
]}

Chen, Jiaqing ^{[1
]}

Li, Ruifeng ^{[1
]}

Liu, Yang ^{[1
]}

Wang, Chunsheng ^{[2
]}

机构：

[1] Environmental Engineering Department, Beijing Institute of Petro-Chemical Technology

[2] Research Institute of China National Offshore Oil

来源：

Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2012年 / 28卷 / 05期

关键词：

Conductivity; Dehydration rate; Electrostatic coalescing mechanism; High frequency/high voltage AC electric field; Offshore crude oil; Water-in-oil emulsions;

D O I：

10.3969/j.issn.1001-8719.2012.05.022

中图分类号：

学科分类号：

摘要：

By using the self-made rectangular wave high frequency/high voltage pulse AC power and electrostatic coalescer, the static electric-dehydration experiments of two crude oil emulsions with the water-cut of 5% and 20%, respectively, from offshore crude oil were accomplished. The dehydration effect of crude oil emulsion with the high frequency/high voltage pulse AC electric field was compared to that with power-frequency electric field. Then conductivity of the crude oil emulsion was measured before and after the electric-dehydration experiment. The results showed that the dehydration rate of crude oil emulsion with high frequency/high voltage AC electric field was better than that with the power-frequency electric filed, and the best frequency range for crude oil emulsion was 1400-1500 Hz. The conductivity of crude oil emulsion was greatly influenced by the high frequency/high voltage AC electric field and varied under different electric field intensity and frequency, which can be also used as an index to evaluate the dehydration effect.

引用

页码：844 / 850

页数：6

共 14 条

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