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本文研究了以大孔树脂XAD-2为吸附剂的十种有代表性的芳族化合物的动态吸附特征。这十种化合物划分为三个体系,即苯环上带有吸电子基团的体系、苯环上带有推电子基团的体系及稠环体系。文章全面地分析了三个体系中影响吸附性能的共同因素和不同体系的各自特点,然后以实验结果和Freundlich 方程为基础,通过数据处理建立了三套经验模型,模型的计算值接近于实验值。
In this paper, the dynamic adsorption characteristics of ten representative aromatic compounds using macroporous resin XAD-2 as adsorbent were studied. The ten compounds are divided into three systems, namely the system with electron-withdrawing group on benzene ring, the system with electron-pushing group on benzene ring and the fused ring system. This paper comprehensively analyzed the common factors affecting the adsorption performance and the respective characteristics of the different systems in the three systems. Based on the experimental results and the Freundlich equation, three empirical models were established by data processing. The calculated values of the model are close to the experimental values .