Journal of South China University of Technology (Natural Science Edition) ›› 2015, Vol. 43 ›› Issue (6): 1-8.doi: 10.3969/j.issn.1000-565X.2015.06.001

• Chemistry & Chemical Engineering •     Next Articles

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)

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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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