关键词: 萃取, 塔器, 测量, 计算流体力学, 过程强化

Abstract:

Liquid-liquid extraction is a widely used separation technique, and has important applications in petrochemical， pharmaceutical extraction， metal separation and other fields. Extraction column is one of the common extractors to realize this process. Nowadays, the design of extraction column still highly relies on the previous experience and tedious experiments. Recent research progresses on extraction column were reviewed. Experimental measurement techniques for fluid flow, drop size and concentration field were summarized. Drop-based modeling method and multi-scale computational fluid dynamic simulation were introduced. Studies on process intensification were reviewed. As moving towards digitalization and sustainability chemical processes, some future work was suggested. For experimental methods, in situ measurements and real-time analysis need to be developed. For modeling and simulation methods, more attention should focus on microscopic interfacial behaviors and influence of mass transfer. Based on the advanced experimental and simulation method, new column and internal design need to be further developed based on new extraction system for process intensification to face future challenges in chemical processes.

Key words: extraction, column, measurement, computational fluid dynamics, process intensification