Using the main statements of the Dubinin theory of volume filling of micropores (TVFM) the amount of adsorbed ethane was estimated at pressures up to 4 MPa in the temperature range lower and higher than the critical temperature (303–333 K) on the superactive microporous carbon adsorbent with the bimodal micropore size distribution and a total micropore volume of 1.44 cm3 g−1. Two approaches were applied for comparison of the accuracy of calculations: the approach based on the calculation of “standard states” of adsorption and pressure and the approach taking into account the property of linearity of adsorption isosteres of gases in broad ranges of thermodynamic parameters. Both thermodynamic approaches showed good agreement of the results with experimental data and can be recommended for precalculations of adsorption equilibria of gases and vapors on the basis of the minimum physicochemical information about the adsorbent and adsorptive. The high agreement of the experimental and calculated data provides the basis for using the adsorption characteristics obtained in the framework of the TVFM for the calculation of differential molar isosteric heats of adsorption.

中文翻译：

---

用微孔体积填充理论估算超活性微孔碳吸附剂对乙烷的吸附

使用 Dubinin 微孔体积填充理论 (TVFM) 的主要陈述，在低于和高于临界温度 (303–333 K) 的温度范围内，在高达 4 MPa 的压力下估算了超活性微孔上的吸附乙烷量。具有双峰微孔尺寸分布和总微孔体积为 1.44 cm3 g-1 的碳吸附剂。应用两种方法来比较计算的准确性：基于吸附和压力“标准状态”计算的方法和考虑广泛热力学参数范围内气体吸附等排量线性特性的方法。两种热力学方法都显示出结果与实验数据的良好一致性，可推荐用于基于吸附剂和吸附剂的最小物理化学信息来预先计算气体和蒸汽的吸附平衡。实验和计算数据的高度一致性为使用在 TVFM 框架中获得的吸附特性计算微分摩尔等量吸附热提供了基础。