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›› 2012, Vol. 12 ›› Issue (2): 223-226.

• 反应与分离 • 上一篇    下一篇

负载型离子液体溴代正丁基吡啶/活性炭吸附SO2

闻立静 田晋平 吕永康 李秉正 马燕   

  1. 太原科技大学材料科学与工程学院 太原科技大学材料科学与工程学院 太原理工大学化工学院 太原科技大学材料科学与工程学院 太原科技大学材料科学与工程学院
  • 收稿日期:2011-10-09 修回日期:2012-03-05 出版日期:2012-04-20 发布日期:2012-04-20
  • 通讯作者: 闻立静

Adsorption Performance of Ionic Liquid [BPy]Br Immobilized on Activated Carbon to SO2

WEN Li-jing TIAN Jin-ping LV Yong-kang LI Bing-zheng MA Yan   

  1. Department of Materials Science and Engineering, Taiyuan University of Science and Technology Department of Materials Science and Engineering, Taiyuan University of Science and Technology Department of Chemical Engineering, Taiyuan University of Technology Department of Materials Science and Engineering, Taiyuan University of Science and Technology Department of Materials Science and Engineering, Taiyuan University of Science and Technology
  • Received:2011-10-09 Revised:2012-03-05 Online:2012-04-20 Published:2012-04-20
  • Contact: WEN Li-jing

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被引次数

25

摘要： 离子液体溴代正丁基吡啶通过等体积浸渍法负载到活性炭(AC)上([BPy]Br/AC)，对N2/SO2组成的模拟烟气(SO2浓度为3300 mg/m3)进行吸附，对SO2的吸附容量达49.5 mg/g. [BPy]Br/AC再生后的二次吸附率达96.83%，可重复利用. 孔结构特征测定结果显示，负载使AC总孔容的增加主要发生在4 nm以下，特别是0.5~3 nm的微孔范围内；吸附后，[BPy]Br/AC吸附剂的微孔孔容减少了29.5%，表面积减少了47.5%.

关键词: 负载型离子液体, SO2, 吸附剂, 吸附, 脱附, 活性炭

Abstract: The ionic liquid [BPy]Br was immobilized onto activated carbon (AC) via a facile incipient impregnation method. The SO2 adsorption/desorption performances of the immobilized ionic liquid were evaluated, and high SO2 adsorption capacity and rate achieved. Its capacity reached 49.5 mg/g with a N2/SO2 mixture gas containing 3300 mg/m3 SO2. The [BPy]Br/AC system could be reused for many adsorption/desorption cycles. The second adsorption rate reached 96.83%. The immobilized IL structure was determined. The immobilization resulted in the increase of the volume of pores small than 4 nm, the most noticeable change was in the size range of pores from 0.5 to 3 nm. After adsorption, the surface area decreased 47.5% with 29.5% decrease in the volume of microspores.

Key words: immobilized ionic liquid, SO2, adsorbent, adsorption, desorption, activated carbon

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