文章摘要
HPAM在油水界面的吸脱附作用研究
Research of Adsorption and Desorption Behavior of HPAM in the Oil-water Interface
  
DOI:10.19346/j.cnki.1000-4092.2017.02.019
中文关键词: 聚合物  油水界面  吸脱附行为  热力学模型  动力学模型
英文关键词: polymer  oil-water interface  adsorption and desorption behavior  thermodynamic model  kinetic model
基金项目:国家科技重大专项“海上稠油高效开发新技术”(项目编号2011ZX05024-004)。
作者单位
陈文娟1,2,张健1,2,靖波1,2,檀国荣1,2,王虎3,段明3 1. 海洋石油高效开发国家重点实验室北京1000282. 中海油研究总院北京1000283. 西南石油大学化学化工学院四川成都610500 
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中文摘要:
      为了弄清聚合物HPAM油水界面的吸附规律,利用双偏振干涉测量(DPI)技术研究聚合物HPAM在油水界面的吸脱附行为,建立了热力学和动力学模型,揭示聚合物的吸脱附作用并探究其机理。研究结果表明,HPAM在油水界面呈现快速吸附-慢速脱附的化学吸脱附过程。最大平衡吸附量随着聚合物浓度、相对分子质量、疏水 单体含量的增加显著增大。吸附动力学参数符合伪一级动力学方程。不同浓度下,聚合物的伪一级反应速率常数K 变化不大,约为0.029 s-1。经过较长时间脱附后,油水界面上仍然有残留聚合物,且残余量随浓度的增大而增加。图8 表5 参27
英文摘要:
      In order to understand the laws of HPAM adsorption and desorption,the dual polarization interferometry (DPI) technology was introduced to study the microcosmic adsorption and desorption behavior of polymer in the oil-water interface,the thermodynamic and kinetic model for polymer adsorption was established,and then the mechanism of the polymer adsorption in oil-water interface could be revealed from molecular level,providing new ideas and theoretical basis in the treatment of polymer-contained water. It was demonstrated that polymer displayed fast adsorption-slow desorption process in the oil-water interface. The maximum adsorption showed a linear relationship with the polymer concentration. The polymer adsorption capacity was significantly affected by the polymer molecular weight,hydrolysis degree and hydrophobic monomer content. Absorption kinetic parameters conformed to the pseudo-first order kinetic rule. Under different concentration,the corresponding reaction rate constant K was 0.029 s-1. After long time desorption,there were still residual polymer in the oil-water interface. The residual quantity increased with the increase of polymer concentration.
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