Abstract:

As the core component of the rotating packed bed, the packing is an important place where the microscopic mixing and mass transfer reaction processes of materials occur. The structure, material composition and filling mode of the packings determine the function of the packings, which directly affect the mass transfer performance, service life and application range of the rotating packed bed, so it is particularly important to enhance the function of the packings. By changing the surface properties, adjusting the shape and designing the structure of the commonly used packings, the functional packings are imbued with functional properties such as adsorption, catalysis and hydrophobic, which shows excellent results in improving the performance and operation effect of the rotating packed bed. In this paper, the main classification and characteristics of functional packings in rotating packed beds were reviewed, the application of functional random and structured packings in rotating packed beds in recent years was summarized, the aspects of enhancing mass transfer characteristics and improving liquid flow behavior were analyzed for explaining the functional characteristics of packings, and the development direction and industrialization prospect of functional packings were prospected.

Key words: high-gravity rotating packed bed, functional packings, mass transfer, catalysis

摘要：

填料作为旋转填料床的核心部件，是物料微观混合和传质反应过程发生的重要场所。填料的结构、材质组成、填装方式决定了填料的功能性，进而直接影响到旋转填料床的传质性能、使用寿命和应用范围，故而增强填料的功能性显得尤为重要。功能性填料通过改变常用填料的表面性质、调节形态、设计结构等手段，使填料具有如吸附、催化、疏水等的功能特性，在提高旋转填料床的性能和运行效果方面表现出优异的成效。综述了在旋转填料床中功能性填料的主要分类与特点，总结分析了近年来功能性散装填料和规整填料在旋转填料床中的应用情况，从增强传质特性和改善液体流动行为方面分析了填料功能特性的体现，并对功能性填料的发展方向和工业化前景做出了展望。

关键词: 超重力旋转填料床, 功能性填料, 传质, 催化