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林产化学与工业 ›› 2014, Vol. 34 ›› Issue (1): 57-61.doi: 10.3969/j.issn.0253-2417.2014.01.010

• 研究报告 • 上一篇    下一篇

碱木质素过氧化氢预处理制备驱油剂的研究

申士成1,2, 周玉杰2, 米杰1, 张建安2, 戴玲妹3, 刘德华3, CHOO Y M4, LOH S K4   

  1. 1. 太原理工大学 煤科学与技术教育部和山西省重点实验室, 山西 太原 030024;
    2. 清华大学 核能与新能源技术研究院, 北京 100084;
    3. 清华大学 化学工程系, 北京 100084;
    4. 马来西亚 棕榈油协会, 吉隆坡 50720
  • 收稿日期:2013-02-25 出版日期:2014-02-25 发布日期:2014-03-05
  • 通讯作者: 张建安(1963-),副教授,硕士生导师,主要从事生物质能源的研究;E-mail:zhangja@tsinghua.edu.cn。 E-mail:zhangja@tsinghua.edu.cn
  • 作者简介:申士成(1987-),男,山东东阿人,硕士生,研究方向为木质素基驱油剂的相关研究
  • 基金资助:
    国家自然科学基金资助项目(21176141);国家973计划资助(2011CB707406);马来西亚棕榈油协会资助项目(无编号)

Preparation of Surfactants for Enhanced Oil Recovery from Alkali Lignin Pretreated with Hydrogen Peroxide

SHEN Shi-cheng1,2, ZHOU Yu-jie2, MI Jie1, ZHANG Jian-an2, DAI Ling-mei3, LIU De-hua3, CHOO Y M4, LOH S K4   

  1. 1. Key Laboratory of Coal Science and Technology of Shanxi Province and Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China;
    2. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China;
    3. Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;
    4. Palm Oil Association of Malaysian, Kuala Lumpur 50720, Malaysia
  • Received:2013-02-25 Online:2014-02-25 Published:2014-03-05

摘要: 探索了碱木质素经H2O2预处理,再经磺化、胺化、烷基化合成驱油用表面活性剂的方法。首先考察了过氧化氢预处理条件对表面张力的影响。结果表明,当过氧化氢与碱木质素质量比为1:10,温度 70 ℃,处理时间 30 min 效果较好,经该条件预处理后合成的表面活性剂质量分数为 0.9 % 时,表面张力降至 24 mN/m。进一步考察碱、表面活性剂质量分数对孤岛原油油/水界面张力的影响,并与同条件下未经预处理合成的表面活性剂的油/水界面张力对比,结果表明,碱木质素经预处理合成的表面活性剂质量分数为 0.4 % 时,与质量分数为 0.4 % NaOH复配后可使最低油/水界面张力达 0.07 mN/m,较未经氧化预处理组稳定时间明显延长。红外光谱(FT-IR)分析表明了碱木质素改性前后结构的变化。

关键词: 碱木质素, 氧化, 表面张力, 油/水界面张力

Abstract: The method for synthesis of surfactants for enhanced oil recovery, including pretreatment with H2O2, sulfonation, amination and alkylation, was studied with alkali lignin as feedstock. Firstly, the effects of pretreatment conditions on surface tension were investigated. The suitable pretreatment conditions were that mass ratio of H2O2 to alkali lignin was 1:10 at 70 ℃ for 30 min. Under the pretreatment conditions, the surface tension of 0.9 % surfactant solution could be reduced to 24 mN/m. The effects of surfactant and alkali concentration on oil-water interfacial tension of Gudao crude oil were also studied. The results showed that when both the surfactant concentration and NaOH concentration was 0.4 %, the oil-water interfacial tension was decreased to 0.07 mN/m. It was more stable than the control surfactants synthesized without H2O2 pretreatment. Finally, Fourier Transform Infrared (FT-IR) analysis indicated the structural characterization of lignin before and after modification.

Key words: alkali lignin, oxidation, surface tension, oil-water interfacial tension

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