活性炭纤维负载功能化离子液体的脱硫性能  

Desulfurization properties of activated carbon fiber supported functionalized ionic liquid

作　　者：王建英[1] 张丽喆[1] 穆惠英[2] 陈莹[1] 胡永琪[1] 

机构地区：[1]河北科技大学化学与制药工程学院,石家庄050018 [2]天津大学,天津300072

出　　处：《环境工程学报》2016年第1期248-256,共9页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(21206030);河北省自然科学基金资助项目(B2012208084);河北省药物化工工程技术研究中心(YY03)

摘　　要：以等体积浸渍的方法将[C3O1Mim]+[H3CSO3]-(1-(2-甲氧基乙基)-3-甲基咪唑甲磺酸盐)和[C5O2Mim]+[H3CSO3]-(1-(2-甲氧基乙氧基乙基)-3-甲基咪唑甲磺酸盐)负载到活性炭纤维(ACF)上,并对其进行氮气吸附、热重等表征。对ACF固载的离子液体脱硫性能测试,结果表明:在离子液体负载量为10 wt%,模拟烟道气流量为40 m L/min,温度为20℃,SO2体积分数为0.2%条件下,[C3O1Mim]+[H3CSO3]-/ACF、[C5O2Mim]+[H3CSO3]-/ACF吸附量分别为45.34mg SO2/g和60.08 mg SO2/g。经过5次吸附-脱附循环利用,其脱硫效果基本不变,说明[C3O1Mim]+[H3CSO3]-/ACF、[C5O2Mim]+[H3CSO3]-/ACF有良好的再生性能。Ionic liquids（ IL） [C3O1Mim]＋[H3CSO3]-（ 1-（ 2-methoxy ethyl）-3-methyl imidazole mesilate） and[C5O2Mim]＋[H3CSO3]-（ 1-（ 2-methoxy ethoxy ethyl）-3-methyl imidazole mesilate） supported on active carbon fiber（ ACF） with a variety of loading amount were prepared by incipient impregnation method. The prepared IL-loaded ACF were characterized by N2 adsorption and TGA. The desulfurization and regeneration performance were investigated. The adsorption amounts were 45. 34 and 60. 08 mg SO2/ g adsorbent,respectively under the conditions of 20℃,40 m L / min of flow rate,0. 2% of SO2 concentration and 10 wt% of ionic liquids loading amount. Five continuous adsorption-desorption cycles show that the IL-loaded ACF had an excellent regeneration performance.

关 键 词：活性碳纤维 二氧化硫 负载 吸附脱附 

分 类 号：X701.3[环境科学与工程—环境工程]