新型复合干燥剂吸附分形特性

FRACTIONAL CHARACTERISTICS FOR ADSORPTION IN NEW COMPOSITE DESICCANT MATERIALS

基于复合干燥剂表面的氮气平衡吸附实验数据,利用分形等温吸附理论模型,对氮气平衡吸附量进行非线性拟 合,确定了表面分形维数,并对表面几何形态进行定最描述,得到了分形等温吸附式;对比测试和拟合结果,发现分形维 数随氯化钙含量增加几呈波动变化,分析得到的单分子层饱和吸附量与实验数据基本一致。

Based on the test data for equilibrium adsorption of nitrogen gas in new composite desiccant materials, non-linear curve fit regarding the equilibrium adsorption rate for nitrogen gas was made in terms of the BET adsorption theory. The fractional dimensional sizes for adsorption surface has been determined, and the geometry details for the adsorption surface, as well as the isotherm adsorption relationship, has been obtained. It is found from both the experimental and the analysis results that the fractional dimensional sizes vary with the contents of calcium chloride for the composite desiccant materials, and the analyzed monolayer saturate adsorption rate agrees with the test data well.