MD膜驱剂在蒙脱土及中原油砂上的吸附性能  

Adsorption property of Molecular Deposition (MD) Film Displacement Agent on Montmorillonite and Zhongyuan Oil Sand

作　　者：高芒来[1] 刘勇[1] 孟秀霞[1] 王建设[1] 

机构地区：[1]石油大学(北京)化工学院

出　　处：《江汉石油学院学报》2004年第1期110-112,115,共4页Journal of Jianghan Petroleum Institute

基　　金：中国石油天然气股份公司导向试验基金项目 (B980 2 ) ;重质油国家重点实验室开放课题 ( 2 0 0 3 0 1)

摘　　要：用静态吸附法研究了MD膜驱剂在蒙脱土及中原油砂上的吸附性能和机理。在pH值为 2～ 12范围内 ,蒙脱土及中原油砂颗粒对膜驱剂的静电引力随电位降低而增大。蒙脱土离子交换容量大 ,主要为离子交换吸附 ,吸附量较大 ,吸附能垒低 ,吸附速率大 ,单位吸附的能量变化不大。中原油砂主要为离子对吸附 ,吸附量小 ,有一定能垒 。A method of static adsorption is used to study the adsorption property and mechanism of MD film displacement on montmorillonite and Zhongyuan oil sand. Within the range of pH 2 [similar to] 12, electrostatic attraction of the film displacement agent caused by montmorillonite and Zhongyuan oil sand increases with the decrease of potential. The volume of ionic exchange is high in montmorillonite, in which ionic exchanging adsorption is mainly of high adsorption amount and lower adsorption energy barrier and high adsorption rate as well as less energy change of unit adsorption. In Zhongyuan oil sand, ion-pair adsorption is mainly of less adsorption amount, certain energy barrier and higher heat release amount of unit adsorption.

关 键 词：MD膜驱剂 蒙脱土 中原油砂 电位 吸附 

分 类 号：O647.3[理学—物理化学]