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采用重量法对加温加压下苯和环己烷在γ-Al_2O_3颗粒上的吸附进行了研究。实验结果表明,随着吸附温度升高,吸附等温线的滞后环逐渐朝着相对压力增大的方向移动且宽度变窄;苯和环己烷在γ-Al_2O_3上的吸附类似。将改进的Halsey方程和Kelvin方程相结合,建立起描述上述吸附过程的理论模型,实验结果验证了该模型的准确性。
Gravimetric method was used to study the adsorption of benzene and cyclohexane on γ-Al 2 O 3 particles under heating and pressure. The experimental results show that as the adsorption temperature increases, the hysteresis loop of the adsorption isotherm gradually moves towards the opposite pressure and narrows in width; the adsorption of benzene and cyclohexane on γ-Al 2 O 3 is similar. The improved Halsey equation and the Kelvin equation are combined to establish a theoretical model describing the adsorption process. The experimental results verify the accuracy of the model.