固体表面物理吸附新模型的实验验证

THE EXPERIMENTAL TEST OF A NEW MODEL FOR PHYSICAL ADSORPTION ON SOLID SURFACES

本文对新提出的固体表面物理吸附数学模型进行了实验验证,结果表明:新模型可以在全P_i/P_s范围内定量地描述第二类型固体表面物理吸附过程,用新模型的计算结果计算固体吸附剂的比表面积,结果同传统的B.E.T.法非常接近,表明新模型的计算结果可以用于工程计算。

An experimental test was made on a new model for physical adsorption on solid surfaces and comes to conclusions as follows: 1. The adsorption curve of Al_2O_3 solid catalyst is Type Ⅱ. 2. The new model may be used in describing Type Ⅱ adsorption process quantitatively in the whole range of pressure. The model prediction agrees with experimental data satisfactorily. 3. The new model can be used to predict the surface area of solid adsorbant in good accordance with the B.E.T, model. Other physical properties suchas porosity are also available when experimental data are treated further according to the model.