We present benchmark adsorption data of CH₄, CO₂ and N₂ binary and ternary mixtures on MOF-5 at 297 K and pressures up to 1500 kPa obtained via the isotope exchange technique (IET) and a predictive volumetric method. The ternary mixtures data are organized in two different domains: constant composition and constant pressure planes. The constant composition data show quasi-constant selectivity in the entire pressure range. The constant pressure data showed the existence of azeotrope-like crossover for CH₄ along the N₂ and CO₂ paths. However, these crossovers do not correspond to a reversal in the adsorbent’s affinity for CH₄. The obtained experimental data is in accord with ideal adsorption solution theory (IAST).

我们提供了CH ₄，CO ₂和N ₂二元和三元混合物在297 K和最高1500 kPa压力下通过同位素交换技术（IET）和预测性体积法获得的CH ₄，CO ₂和N ₂二元和三元混合物的基准吸附数据。三元混合物数据组织在两个不同的域中：恒定成分和恒定压力平面。恒定组成数据显示在整个压力范围内的准恒定选择性。恒压数据显示CH ₄沿N ₂和CO ₂路径存在类共沸物的交叉。但是，这些交换并不对应于吸附剂对CH ₄的亲和力的逆转。。所得实验数据符合理想吸附溶液理论（IAST）。