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
收藏
页码：6347 / 6354
页数：8
相关论文
共 23 条
  • [11] High molecular weight guar gum assisted settling of fine solids in diluted bitumen: Effect of solvents
    Santander, Camila
    Liu, Jing
    Tan, Xiao-Li
    Liu, Qi
    Zeng, Hong-Bo
    PETROLEUM SCIENCE, 2021, 18 (06) : 1877 - 1886
  • [12] High molecular weight guar gum assisted settling of fine solids in diluted bitumen: Effect of solvents
    Camila Santander
    Jing Liu
    Xiao-Li Tan
    Qi Liu
    Hong-Bo Zeng
    Petroleum Science, 2021, (06) : 1877 - 1886
  • [13] High molecular weight guar gum assisted settling of fine solids in diluted bitumen: Effect of solvents
    Camila Santander
    Jing Liu
    Xiao-Li Tan
    Qi Liu
    Hong-Bo Zeng
    Petroleum Science, 2021, 18 (06) : 1877 - 1886
  • [14] Effect of polyelectrolyte charge density and molecular weight on the flotation of oil in water emulsions
    Gray, SR
    Harbour, PJ
    Dixon, DR
    COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1997, 126 (2-3) : 85 - 95
  • [15] Effect of non-homogeneous spatial, distributions of surfactants on the stability of high-content bitumen-in-water emulsions
    Urbina-Villalba, G
    García-Sucre, M
    INTERCIENCIA, 2000, 25 (09) : 415 - +
  • [16] Propylene oxide ethylene oxide block copolymers as demulsifiers for water-in-oil emulsions .1. Effect of molecular weight and hydrophilic-lipophylic balance on the demulsification efficiency
    Zaki, NN
    AbdelRaouf, ME
    AbdelAzim, AAA
    MONATSHEFTE FUR CHEMIE, 1996, 127 (6-7): : 621 - 629
  • [17] Effect of water content and molecular weight on the moisture isotherms and glass transition properties of inulin
    Schaller-Povolny, LA
    Smith, DE
    Labuza, TP
    INTERNATIONAL JOURNAL OF FOOD PROPERTIES, 2000, 3 (02) : 173 - 192
  • [18] Effect of molecular weight and degree of deacetylation of chitosan on the formation of oil-in-water emulsions stabilized by surfactant-chitosan membranes
    Mun, S
    Decker, EA
    McClements, DJ
    JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2006, 296 (02) : 581 - 590
  • [19] Polymeric Emulsions of Polyethylene Glycol in Water Prepared by Flow-induced Phase Inversion Emulsification: The Effect of Polymer Molecular Weight
    Al-Ashawy, Marwa
    Al-Hariri, Sahar
    Bakr, Hussein
    JORDAN JOURNAL OF CHEMISTRY, 2021, 16 (03) : 147 - 152
  • [20] Specific Volume-Hole Volume Correlations in Amorphous Carbohydrates: Effect of Temperature, Molecular Weight, and Water Content
    Townrow, Sam
    Roussenova, Mina
    Giardiello, Maria-Isabelle
    Alam, Ashraf
    Ubbink, Job
    JOURNAL OF PHYSICAL CHEMISTRY B, 2010, 114 (04): : 1568 - 1578
123