CIESC Journal ›› 2016, Vol. 67 ›› Issue (S1): 347-352.doi: 10.11949/j.issn.0438-1157.20151736

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Effect of components of ionic liquids on oxidation desulfurization performance of hydrogen sulfur

HU Jinchao1, GAO Lixia1, LIU Weihai2, ZHAO Yonglu2, GAO Shang1, PAN Xingpeng1, GUO Zhihui1, YU Jiang1   

  1. 1 School of Chemical Engineering, Beijing University of Chemical and Technology, Beijing 100029, China;
    2 Xinjiang Zhongtai Chemical Co., Ltd., Urumqi 830009, Xinjiang, China
  • Received:2015-11-19 Revised:2015-11-25 Online:2016-08-31 Published:2016-08-31
  • Supported by:

    supported by the National Natural Science Foundation of China (21076019,21206007) and Xinjiang Autono-mous Region Science and Technology Branch Project (201491111).

Abstract:

Based on the natural feature of Fe-based ionic liquids (Fe-IL), non-aqueous wet oxidation desulfurization of hydrogen sulfide was proposed in our preliminary work. But it has the poor gas-liquid mass transfer and low concentration of active Fe(Ⅲ), which leads the desulfurizing agent to be inactivated easily, and presents lower sulfur capacity and regeneration rate during the desulfurizing process. In this work, Fe-IL was used as bulk solution, Zn-based ionic liquids(Zn-IL), Mn-based ionic liquids(Mn-IL) and 1,3-dimethyl ketone of imidazoline (DMI) are selected as additives with different mass ration to construct complex ionic liquids to improve desulfuring performance. According to the results, the complex ionic liquids with bimetal show much better desulfuring performance, and a stronger intensified effect of DMI on improvement of desulfuring performance is observed after the introduction of DMI into Fe-IL. Particularly, the ternary system of DMI and Zn-IL in Fe-IL presents the best desulfuration performance.

Key words: Fe-based ionic liquids, Zn-based ionic liquids, Mn-based ionic liquids, 1,3-dimethyl ketone of imidazoline, desulfuration

CLC Number: 

  • X701.3
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