The main purpose of this study is the optimization of the operating mode for cryogenic distillation columns that provide an isotopic enrichment in stable isotopes. The analysis is based on an experimental cycle for ¹³C enrichment by CO cryogenic distillation conducted in semi-batch mode in the column of the National Institute for Research and Development of Isotopic and Molecular Technologies. The experimental run is reproduced closely using the simulation software ProSim-BatchColumn, applied for the first time to this type of separations. It is, then, used to investigate the dynamics of the process and the effect of the feed flowrate on the separation to be achieved. As a result, an optimized cycle is proposed, which allows reaching the desired specifications in around one-third the time. The obtained results are interesting and can be applied to all the mixtures where heavy components have a higher commercial value than the light ones.

这项研究的主要目的是优化低温蒸馏塔的操作模式，该蒸馏塔可在稳定同位素中提供同位素富集。该分析基于针对¹³个实验周期的分析在美国同位素和分子技术研究与发展研究所的专栏中以半间歇模式进行的CO低温蒸馏富集C。实验运行使用模拟软件ProSim-BatchColumn进行了密切复制，该软件首次应用于此类分离。然后，它用于研究过程的动力学以及进料流速对要实现的分离的影响。结果，提出了优化的周期，该周期允许在大约三分之一的时间内达到所需的规格。所获得的结果令人感兴趣，并且可以应用于重组分比轻组分具有更高商业价值的所有混合物。