Effect of Hydroxyl Content and Molecular Weight of Biodegradable Ethylcellulose on Demulsification of Water-in-Diluted Bitumen Emulsions

被引：74

作者：

Feng, Xianhua ^{[1
]}

Wang, Shengqun ^{[1
]}

Hou, Jun ^{[1
]}

Wang, Louxiang ^{[1
]}

Cepuch, Carolyn ^{[1
]}

Masliyah, Jacob ^{[1
]}

Xu, Zhenghe ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2G6, Canada

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2011年 / 50卷 / 10期

基金：

加拿大自然科学与工程研究理事会;

关键词：

OIL-EMULSIONS; POLYOXYALKYLENATED AMINES; DESTABILIZATION; BREAKING; STABILIZATION; ASPHALTENES; SURFACTANTS; CELLULOSE; POLYMER; FILMS;

D O I：

10.1021/ie102071q

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Ethylcellulose (EC) polymers with different hydroxyl content and molecular weight were synthesized in tetrabutyl ammonium fluoride/dimethyl sulfoxide medium. Their performance for demulsification of water-in-naphtha diluted bitumen emulsions was evaluated. It was found that EC with 4.5 wt % hydroxyl (degree of hydroxyl substitution, 2.4) is the most effective in demulsification. The demulsification efficiency of EC could be linked to its interfacial activity and potency of flocculation. The potency of flocculation by EC depends on its molecular weight and hydroxyl content, which affect molecular interactions. EC with higher molecular weight was found to be more effective in the demulsification of water-in-naphtha diluted bitumen emulsions.

引用

页码：6347 / 6354

页数：8

共 23 条

[1] Mechanistic Study on Demulsification of Water-in-Diluted Bitumen Emulsions by Ethylcellulose
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[2] Understanding the Demulsification of Water-in-Diluted Bitumen Froth Emulsions
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[3] Role of Bitumen Components in Stabilizing Water-in-Diluted Oil Emulsions
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[4] Biodegradable Polymer for Demulsification of Water-in-Bitumen Emulsions
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[5] Dewatering process water-in-diluted bitumen emulsions using magnetically responsive Janus particles
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[6] Investigating the stability mechanism of water-in-diluted bitumen emulsions through isolation and characterization of the stabilizing materials at the interface
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[7] The effect of naphtha to bitumen ratio on properties of water in diluted bitumen emulsions
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2002, 211 (2-3) : 213 - 222
[8] Adsorption-Based Synthesis of Magnetically Responsive and Interfacially Active Composite Nanoparticles for Dewatering of Water-in-Diluted Bitumen Emulsions
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[9] Effect of salinity, temperature, water content, and pH on the microwave demulsification of crude oil emulsions
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[10] Effect of the hydroxyl content and molecular weight of polyvinyl butyral on tape properties
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