华南理工大学学报(自然科学版) ›› 2015, Vol. 43 ›› Issue (6): 1-8.doi: 10.3969/j.issn.1000-565X.2015.06.001

• 化学化工 •    下一篇

木质素衍生物的吸附特性及三次采油牺牲效果

邱学青 张志鸣 杨东杰 黄恺 周明松   

  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
  • 收稿日期:2014-06-06 修回日期:2014-09-25 出版日期:2015-06-25 发布日期:2015-05-04
  • 通信作者: 周明松(1980-),男,博士,副研究员,主要从事工业木质素的资源化利用研究. E-mail:mszhou@scut.edu.cn
  • 作者简介:邱学青(1965-),男,教授,博士生导师,主要从事工业木质素的资源化利用研究.E-mail: cexqqiu@ scut.edu.cn
  • 基金资助:

    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)

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

Qiu Xue-qing Zhang Zhi-ming Yang Dong-jie Huang Kai Zhou Ming-song   

  1. School of Chemistry and Chemical Engineering∥Guangdong Provincial Key Lab for Green Chemical Product Technology,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2014-06-06 Revised:2014-09-25 Online:2015-06-25 Published:2015-05-04
  • Contact: 周明松(1980-),男,博士,副研究员,主要从事工业木质素的资源化利用研究. E-mail:mszhou@scut.edu.cn
  • About author:邱学青(1965-),男,教授,博士生导师,主要从事工业木质素的资源化利用研究. E-mail: cexqqiu@ scut. edu. cn
  • Supported by:
    Supported by the National Science Foundation for Distinguished Young Scholars(20925622),the National Natu-ral Science Foundation of China(21476092) and the National Program on Key Basic Research Project of China(2010CB732205)

摘要: 研究了 pH 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. 59mmol/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.

关键词: 木质素磺酸钠, 木质素羧酸钠, 碳酸钙, 吸附, 牺牲剂

Abstract:

By investigating the influences of pH value,urea and inorganic salts on the adsorption property of sodium
lignosulfonate (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 CaCO3 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 CaCO3 is the main adsorption driving force. Moreover,by using carboxymethylated lignin (CAL) with high carboxyl content (2. 59mmol/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 dodecyl benzene sulfonate.

Key words: sodium lignosulfonate, carboxymethylated lignin, calcium carbonate, adsorption, sacrificial agent

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