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用智能重量分析技术 (IGA)研究了环戊烷在silicalite 1分子筛上的吸附特性。结果表明 ,随着温度的降低 ,环戊烷的吸附等温线从第一类型过渡为第四类型 ,在 2 5 4K和 2 74K温度下吸附等温线呈现滞后环 ,为第四类型 ,而吸附等温线在 30 4K、32 3K下为阶梯形 ,在 35 4K、42 3K温度下呈第一类型 ,其中 42 3K温度下的吸附等温线可准确的用Langmuir方程来描述。本文同时讨论了吸附质分子间以及吸附质和吸附剂间的相互作用、分子结构特性、分子筛对吸附质分子的空间位阻、分子筛的能量不均匀表面等对环戊烷在silicalite 1分子筛上吸附性能的影响
Adsorption properties of cyclopentane on silicalite 1 zeolite were investigated by using intelligent gravimetric analysis (IGA). The results showed that as the temperature decreased, the adsorption isotherm of cyclopentane changed from the first type to the fourth type, and the adsorption isotherms showed the fourth type at 2 5 4K and 2 74 K, and the adsorption isotherm The line is stepped at 30 4K and 32 3 K and is the first type at 35 K and 42 K, where the adsorption isotherm at 42 3 K can be accurately described by the Langmuir equation. In this paper, we also discussed the interaction between adsorbate molecules and adsorbates and adsorbents, the molecular structure, the steric hindrance of molecular sieve to adsorbate molecules, the uneven surface energy of molecular sieve, and the adsorption of cyclopentane on silicalite 1 zeolite The impact of performance