木质素衍生物的吸附特性及三次采油牺牲效果  

Adsorption Property and Sacrificial Effect for Tertiary Oil Recovery of Lignin Derivatives

作　　者：邱学青[1] 张志鸣[1] 杨东杰[1] 黄恺[1] 周明松[1] 

机构地区：[1]华南理工大学化学与化工学院∥广东省绿色化学产品技术重点实验室,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2015年第6期1-8,共8页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家杰出青年科学基金资助项目(20925622);国家自然科学基金资助项目(21476092);国家"973"计划项目(2010CB732205);广东省高等院校学科建设专项资金资助项目(2014ZP0003);广东省重大科技专项(2012A080105012)~~

摘　　要：研究了p H值、尿素、无机盐对木质素磺酸钠(SL)在碳酸钙表面的吸附特性的影响,发现静电作用和氢键作用不是SL在碳酸钙表面吸附的主要驱动力,而具有较强络合能力的盐类能显著降低SL的吸附量,采用氯化锂封闭SL的部分羧基也能使其吸附量有所降低,说明SL的羧基与碳酸钙之间的络合作用是控制其吸附的主要驱动力.文中还制备了高羧基含量(2.59 mmol/g)的木质素羧酸钠(CAL),发现CAL用作三次采油牺牲剂时,在较低含量下即具有显著的牺牲效果,最大牺牲值可达95.15%;同时CAL和SL都与十二烷基苯磺酸钠具有较好的协同效果.By lignosulfonate investigating the influences of pH value, urea and inorganic salts on the adsorption property of sodium （SL） on calcium carbonate （ CaCO3 ）, it is found that the electrostatic interaction and the hydro- gen bondingare not the main adsorption driving forces of SL adsorption on CaC03 surface, and that the salts with strong complexation ability as well as the blocking of some carboxyl groups of SL with lithium chloride may decrease the adsorption capacity of SL, which means that the complexation between the carboxyl of SL and CaC03 is the main adsorption driving force. Moreover, by using carboxymethylated lignin （CAL） with high carboxyl content （2. 59 mmol/g） as a sacrificial agent in tertiary oil recovery, it is found that CAL is of outstanding sacrificial effect even at low mass concentration, with a maximum sacrificial effect value being up to 95. 15% ; and that both CAL and SL possess good compounding effect with sodium dodecvl benzene sulfonate.

关 键 词：木质素磺酸钠 木质素羧酸钠 碳酸钙 吸附 牺牲剂 

分 类 号：O623.2[理学—有机化学]