Abstract:

Photochemical transformations are considered as an important way to effectively utilize luminous energy for the realization of chemical reactions, and microreactor technology provides a strong platform for improving its process efficiency. In the introduction section, firstly it is pointed out that microreactors have many obvious advantages on various aspects such as distribution of light intensity, process scale-up and utilization efficiency of luminous energy, compared with conventional batch photoreactors, and they can intensify photochemical reaction processes efficiently. Afterwards, the basic characteristics of photochemistry and photochemical microreaction technology are introduced, and the design and construction of photomicroreactors and its applications on the fields of organic synthesis, polymerization, etc., are systematically reviewed. Then photochemical microreaction systems with automation control and its applications are elaborately introduced. In particular, the progress on the photochemical synthesis in microreactors under ultraviolet or visible light irradiation and its process scale-up are highlighted. Finally, the progress in the photochemical microreactor technology is summarized, and its development trend is prospected.

Key words: photochemistry, ?optical radiation, ?microreactor, ?process intensification, ?organic synthesis, automation

摘要：

光化学转化是有效利用光能实现化学反应的重要途径，微反应技术为提高其过程效率提供了一个强有力的平台。本文首先指出微反应器相比于传统釜式光反应器，在光强分布、过程放大、光能利用效率等诸多方面存在明显的优势，能够实现光化学反应过程的高效强化。简要地介绍了光化学转化及光化学微反应技术的基本特征，然后系统地综述了光化学微反应器的设计构建及其在有机合成、聚合等方面的应用，并详细介绍了自动化控制的光化学微反应系统及应用。重点介绍了微反应技术在紫外光、可见光辐照下的光化学合成进展及其过程放大。最后，对光化学微反应技术的研究进展进行总结，并对其发展趋势进行了展望。

关键词: 光化学, 光辐射场, 微反应器, 过程强化, 有机合成, 自动化