用微孔填充理论研究活性炭对有机气体的吸附性能  

Study on Adsorption Capability of Activated Carbon for Organic Gases Using Micropore Filling Theory

作　　者：李海龙[1] 李立清[1] 郜豫川[2] 张剑峰[2] 高招[1] 唐琳[1] 

机构地区：[1]湖南大学环境科学与工程学院,湖南长沙410082 [2]四川天一科技股份有限公司变压吸附分离工程研究所,四川成都610025

出　　处：《化工环保》2007年第2期113-116,共4页Environmental Protection of Chemical Industry

基　　金：国家自然科学基金资助项目(20376019;20576028)。

摘　　要：用微孔填充理论研究了活性炭C40/4对丙酮、甲苯、二氯甲烷有机气体的吸附性能,测试了该活性炭对3种有机气体在不同温度下(288.15,293.15,298.15K)的吸附结果。用D-R方程处理了实验数据,建立了3种有机气体在活性炭C40/4上的等温吸附模型,并将实验测试值与理论预测值进行了比较。实验结果表明:微孔填充理论及D-R方程可很好地描述活性炭C40/4对有机气体的吸附性能,理论预测值与实验测试值的平均相对误差小于3%;有机气体分压较高时,由于发生毛细凝聚,理论预测值较实验测试值偏低。The adsorption capability of activated carbon C40/4 for some organic gases, such as acetone, toluene and methylene dichloride, was studied using micropore filling theory. The effects of this activated carbon on adsorption of 3 kinds of organic gases at different temperature （288. 15 K, 293. 15 K, 298. 15 K） were tested. Processing the experimental data with D-R equation, the adsorption isothermal models of the 3 kinds of organic gases on activated carbon C40/4 were established, and the experimental data were compared with the calculated values. The experimental results indicate that micropore filling theory and D-R equation can well describe the adsorption capability of activated carbon C40/4 for organic gases with less than 3% of average relative error between calculated values and experimental data; By reason of capillary condensation, the calculated values will be lower than the experimental data at higher partial pressure of organic gases.

关 键 词：活性炭 吸附 有机气体 微孔填充 

分 类 号：TQ028.1[化学工程]