Development of miniature measuring cells for the characterization and efficient design of structured packing columns based on an elementary cell model.

本研究项目的总体目标是在小型化的实验装置和适当的模型的基础上描述工业填料塔的传质动力学。小型化的实验装置是组成最小的可行分离单元，它允许在考虑真实边界条件的情况下得出工业塔传质效率的结论。以这种方式，实验室柱不再被用作设计工业柱的实验室基础，工业柱主要是工业装置的极小代表性。因此，这里提出的办法代表着工业和科学共同做法的根本范例变化，需要进行深入研究。填料塔的动力学可细分为流体力学方面和传质特性方面。该项目是根据总体方法学概念对填料的流体动力学行为进行表征的第一步。在随后的研究项目中--基于流体动力学结果--因此必须进行传质行为的扩展。随着上述小型化实验装置的发展，将在热分离工程中创建一个新的技术平台，允许对不同参数(传质阻力、接触角、表面结构等)进行确定的调整、观察和确定。因此，即使仅仅是扩大问题的范围，前瞻性地讲也是最有意义的。

The overall goal of this research project is to represent the mass transfer dynamics of an industrial packed column on the basis of miniaturised experimental set-ups and an appropriate modelling. The miniaturised experimental set-up is to constitute the smallest feasible separation unit that allows conclusions on the mass transfer efficiency of industrial columns with consideration of the real boundary conditions. In this manner no longer a laboratory column shall be used as a laboratory basis for the design of industrial columns which principally is an extremely reduced representation of an industrial apparatus. The approach proposed here therefore represents a fundamental paradigmatic change in the industrial and scientific common practice and needs to be profoundly investigated. The dynamics of a packed column can be subdivided into fluid mechanic aspects and mass transfer characteristics. This project is a first step where the fluid dynamic behaviour of the packing is to be characterised according to the overall methodologic concept. Later in a subsequent investigation project - based on the fluid dynamic results - consequently an extension by the mass transfer behavior has to take place. With the development of the afore-described miniaturized experimental set-up a new technology platform would be created within thermal separation engineering, which allows the decided adjustment, observation and determination of different parameters (mass transport resistances, contact angles, surface structures, etc.) and therefore perspectively is of utmost interest even beyond the mere scope of scale-up problems.