Interfacial tensions upon the addition of alcohols to phenylalkane sulfonate monoisomer systems
- 作者：Zhang ; Shubiao ; Xu ; Yingmei ; Qiao ; Weihong ; Li ; Zongshi
- 关键词：Interfacial tensions ; Enhanced oil recovery ; Phenylalkane sulfonates ; Surfactant flooding
- 刊名：Fuel
- 出版年：2004
- 期刊代码：33_00162361
- 类别：ce
- 出版时间：October, 2004
- 卷：83
- 期：14-15
- 页码：2059-2063
- 文件大小：120 K
摘要
The effects of n-pentanol and n-octanol on the interfacial tensions of phenylalkane sulfonate monoisomer systems against n-alkanes were investigated for elucidating the mechanism of ultra-low interfacial tensions related to enhanced oil recovery. The addition of n-pentanol to phenylalkane sulfonate monoisomer systems had little effect on the interfacial tensions of 1-phenylalkane sulfonate systems, whereas n-octanol could lower their interfacial tensions up to 1–2 orders for some n-alkanes. n-Pentanol could lower the interfacial tensions of 3-phenyltetradecane sulfonate against n-hexane, n-heptane and n-octane, but n-octanol had little effect on the interfacial tensions of 3-phenyltetradecane sulfonate. The interfacial tensions of 5-phenyltetradecane sulfonate could be lowered by the addition of n-pentanol, but increased upon the addition of n-octanol. The effects of alcohol concentration and time on interfacial tensions were also researched to show that interfacial tensions of 5-phenyltetradecane sulfonate solution increased with time at whether lower (0.04%, vol%) or higher (0.4%, vol%) n-octanol concentrations.