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Immobilization of Functionalized Ionic Liquid on Sol-Gel Derived Silica for Efficient Removal of H2S

论文摘要

An innovative approach to H2 S capture has been developed using several metal-based ionic liquids（[Bmim]Cl·CuCl2, [Bmim]Cl·FeCl3, [Bmim]Cl·ZnCl2, [Bmim]Br·CuCl2, and [Bmim]Br·FeCl3） immobilized on the sol-gel derived silica, which is superior to purely viscous ionic liquid with a crucial limit of high temperature, low mass transfer rate,and mass loss. The adsorbents were characterized by the Fourier transform infrared spectrometer, transmission electron microscope, N2 adsorption/desorption, X-ray photoelectron spectroscopy, and thermal analysis techniques. The effects of the metal and halogen in IL, the loading amount of IL, and the adsorption temperature were studied by dynamic adsorption experiments at a gas flow rate of 100 mL/min. The H2 S adsorption results have showed that the optimal adsorbent and adsorption temperature are 5% [Bmim]Cl·CuCl2/silica gel and 20—50 ℃, respectively. H2 S can be captured and oxidized to elemental sulfur, and [Bmim]Cl·CuCl2/silica gel can be readily regenerated by air. The excellent efficiency of H2 S removal may be attributed to the formation of nano-scaled and high-concentration [Bmim]Cl·CuCl2 confined in silica gel, indicating that the immobilization of [Bmim]Cl·CuCl2 on the sol-gel derived silica can be used for H2 S removal promisingly.

论文目录

  • 1 Introduction
  • 2 Experimental
  •   2.1 Materials
  •   2.2 Synthesis of IL and IL supported silica
  •   2.3 Characterization
  •   2.4 Measurement details
  • 3 Results and Discussion
  •   3.1 Properties of the adsorbents
  •     3.1.1 FT-IR anlyses
  •     3.1.2 XRD analyses
  •     3.1.3 TEM analyses
  •     3.1.4 Textural properties
  •   3.2 H2S adsorption analyses
  •     3.2.1 Effect of metal and halogen on H2S adsorption
  •     3.2.2 Effect of the loading amount of ionic liquid on H2S adsorption
  •     3.2.3 Effect of adsorption temperature on H2S adsorption
  •   3.3 Regeneration of[Bmim]Cl·CuCl2/silica gel
  •   3.4 Desulfurization product
  • 4 Conclusions

    • 文章来源

    类型: 期刊论文

    作者: Ma Yunqian,Mao Jiaming,Xiao Cong,Li Yan,Zang Lihua

    来源: China Petroleum Processing & Petrochemical Technology 2019年01期

    年度: 2019

    分类: 工程科技Ⅰ辑

    专业: 有机化工,环境科学与资源利用

    单位: School of Environmental Science and Engineering, Qilu University of Technology, (Shandong Academy of Sciences),Jiangsu Key Laboratory of Anaerobic Biotechnology, Jiangnan University

    基金: financially supported by the Research and Development Program of the Ministry of Science and Technology of China (Grant No. 2014BAC28B01),the Jiangsu Key Laboratory of Anaerobic Biotechnology (Jiangnan University) Supported Research Project (No. JKLAB201703)

    分类号: X701;TQ421

    页码: 62-70

    总页数: 9

    文件大小: 732K

    下载量: 30

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