首页> 中文期刊> 《绿色能源与环境:英文版》 >Anionic structural effect in liquid–liquid separation of phenol from model oil by choline carboxylate ionic liquids

Anionic structural effect in liquid–liquid separation of phenol from model oil by choline carboxylate ionic liquids

         

摘要

Phenolic compounds exist in crude oil as pollutants,and their removal is vital important for the refining and further application of oils.In traditional separation approaches,strong acid and strong base have to be used to remove these compounds,which may cause serious environmental problems.In this work,19 kinds of cholinium ionic liquids have been developed to separate phenol from model oil by liquid–liquid extraction.Structural effect of anions of the ionic liquids in the separation is systematically investigated.It is found that depending on the chemical structure of ionic liquids,phenol can be removed from toluene with single-step removal efficiency from 86 to 99%under optimal conditions.The type of substituent groups and the-CH2 number between two carboxylates have obvious effect on the removal efficiency,and more hydrophilic ionic liquids have a stronger extraction performance for phenol.Furthermore,thermodynamic,13C NMR,1H NMR and density functional theory calculations have been performed to characterize the extraction process and to understand the extraction mechanism.It is shown that the extraction of phenol from oil to ionic liquid is a favorable process,and this process is mainly driven by enthalpy change.The formation of the hydrogen bond between anion of the ionic liquid and-OH of phenol is the main driving force for the extraction of phenol from oil to the ionic liquids.

著录项

  • 来源
    《绿色能源与环境:英文版》 |2019年第2期|P.131-138|共8页
  • 作者单位

    [1]Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals;

    Key Laboratory of Green Chemical Media and Reactions;

    Ministry of Education;

    School of Chemistry and Chemical Engineering;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [2]Henan Key Laboratory of Green Chemistry;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [1]Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals;

    Key Laboratory of Green Chemical Media and Reactions;

    Ministry of Education;

    School of Chemistry and Chemical Engineering;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [2]Henan Key Laboratory of Green Chemistry;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [1]Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals;

    Key Laboratory of Green Chemical Media and Reactions;

    Ministry of Education;

    School of Chemistry and Chemical Engineering;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [2]Henan Key Laboratory of Green Chemistry;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [1]Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals;

    Key Laboratory of Green Chemical Media and Reactions;

    Ministry of Education;

    School of Chemistry and Chemical Engineering;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [2]Henan Key Laboratory of Green Chemistry;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [1]Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals;

    Key Laboratory of Green Chemical Media and Reactions;

    Ministry of Education;

    School of Chemistry and Chemical Engineering;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [2]Henan Key Laboratory of Green Chemistry;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [1]Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals;

    Key Laboratory of Green Chemical Media and Reactions;

    Ministry of Education;

    School of Chemistry and Chemical Engineering;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [2]Henan Key Laboratory of Green Chemistry;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [1]Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals;

    Key Laboratory of Green Chemical Media and Reactions;

    Ministry of Education;

    School of Chemistry and Chemical Engineering;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

    [2]Henan Key Laboratory of Green Chemistry;

    Henan Normal University;

    Xinxiang;

    Henan;

    453007;

    China;

  • 原文格式 PDF
  • 正文语种 CHI
  • 中图分类 总线、通道;
  • 关键词

    Ionic liquid; Extraction; Phenol; Choline; Hydrogen bonding;

    机译:离子液体萃取苯酚胆碱氢键;
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