| 疏水性超高交联吸附树脂对氯代烃蒸气的固定床吸附特性研究 |
| 摘要点击 1255 全文点击 2065 投稿时间：2010-11-30 修订日期：2011-03-15 |
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| 中文关键词 氯代烃 疏水性超高交联吸附树脂 固定床吸附 传质区长度 穿透时间 Yoon-Nelson模型 |
| 英文关键词 chlorinated hydrocarbons(CHCs) hydrophobic hypercrosslinked polymeric resin fixed-bed adsorption height of mass transfer zone breakthrough time Yoon and Nelson model |
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| 中文摘要 |
| 采用固定床吸附法研究了三氯乙烯（TCE）、 1,2-二氯乙烷（DCE）和三氯甲烷（TCM）共3种氯代烃类蒸气在疏水性超高交联吸附树脂LC-1上的动态吸附行为.结果表明， TCE、 DCE和TCM蒸气的初始浓度、 气体流速和吸附温度均会影响动态吸附过程，随着初始浓度、 气体流速和吸附温度的增大，穿透时间变短，传质区长度增大，其中气体流速的影响最大；采用半经验数学模型Yoon-Nelson模型对吸附穿透实验数据进行拟合，拟合相关性系数R2≥0.994. |
| 英文摘要 |
| The dynamic adsorption of trichloroethylene (TCE), 1,2-dichloroethane (DCE) and trichloromethane (TCM) vapors onto hydrophobic hypercrosslinked polymeric resin (LC-1) were investigated using the fixed-bed adsorption method. The results indicated that the breakthrough time decreased and the height of mass transfer zone increased with the elevated initial concentration, gas flow rate and adsorption temperature. The gas flow rate had the wost significant influence on breakthrough time and height of mass transfer zone among the three factors. In addition, a simple semi-empirical mathematic model developed by Yoon and Nelson was applied to investigate the breakthrough behavior, and all correlation coefficients R2 were greater than 0.994. |
