Large crystals of silicalite (0.1 - 1 mm) were synthesized and used to study the kinetics and equilibrium of CO₂ adsorption (at room temperature), both as a pure component and as a binary mixture with nitrogen, using Infra-Red Microscopy (IRM) coupled with Fourier Transform Infra-Red Spectroscopy (FTIR). The use of such large crystals permits the measurement of fast intra-crystalline diffusion processes, beyond the range normally accessible by macroscopic techniques. As expected the effect of N₂ on the CO₂ equilibrium was minimal but the effect on the intra-crystalline diffusivity was significant. Diffusivities (at 300 K) range from 4 x 10^-8 to 4 x 10^-9 m²·s^-1 for CO₂, decreasing with increasing total concentrations of CO₂ and N₂ in the adsorbed phase.

合成了大分子硅质岩（0.1-1 mm），并使用红外显微镜（IRM）研究了纯态组分和与氮的二元混合物（室温下）对CO ₂吸附的动力学和平衡。）和傅立叶变换红外光谱（FTIR）。这样大的晶体的使用允许快速的晶体内扩散过程的测量，超出了宏观技术通常可达到的范围。如所预期的，N ₂对CO ₂平衡的影响是最小的，但是对晶内扩散率的影响是显着的。扩散率（在300 K时）从4 x 10 ^-8到4 x 10 ^-9 m ² ·s ^-1对于CO ₂，随着吸附相中CO ₂和N _2的总浓度增加而降低。