CIESC Journal ›› 2024, Vol. 75 ›› Issue (1): 47-59.DOI: 10.11949/0438-1157.20230649

• Reviews and monographs • Previous Articles     Next Articles

Research progress on micro-chemical rectification and separation technology

Yuting ZHENG(), Guandong FANG, Mengbo ZHANG, Haomiao ZHANG(), Jingdai WANG, Yongrong YANG   

  1. State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310058, Zhejiang, China
  • Received:2023-06-30 Revised:2023-08-20 Online:2024-03-11 Published:2024-01-25
  • Contact: Haomiao ZHANG

微化工精馏分离技术研究进展

郑雨婷(), 方冠东, 张梦波, 张浩淼(), 王靖岱, 阳永荣   

  1. 化学工程联合国家重点实验室,浙江大学化学工程与生物工程学院,浙江 杭州 310058
  • 通讯作者: 张浩淼
  • 作者简介:郑雨婷(1999—),女,硕士研究生,yuting_zheng@zju.edu.cn
  • 基金资助:
    国家自然科学基金项目(21908190);化学工程联合国家重点实验室项目(SKL-ChE-22D04)

Abstract:

The research progress of micro-chemical rectification and separation technology with micro-scale structure as the core is reviewed. Distillation is the most widely used separation method in chemical industry. However, conventional rectification has major drawbacks such as outdated energy saving technology, low equipment efficiency, and low separation performance of near-boiling systems. This review introduces micro-rectification technology, as a novel process intensification means, including external forces of capillary force, centrifugal force, vacuum, gravity, and so on, which plays an important role in flow chemistry applications. Under micro-scale conditions, the efficiency of mass transfer and heat transfer between phases is significantly enhanced with the shortening of the mass transfer distance. Micro-chemical rectification and separation technology is safe and controllable, providing solutions to achieve environmental protection, reduce energy consumption, and improve the development of flow chemistry platforms for chemical synthesis.

Key words: distillation, rectification, microchannel, separation, micro-chemical technology, flow chemistry

摘要:

综述了以微尺度结构为核心的微化工精馏分离技术的研究进展。基于传统精馏存在的节能技术落后、设备效能低以及难分离近沸点物系等问题,介绍了易于实现过程强化的微精馏分离技术,包括常规微蒸馏/微精馏、毛细管力微精馏、离心力微精馏、真空微精馏、重力微精馏等多种方法,在流动化学应用中将起到重要作用。在微尺度条件下,相间传质传热效率随传质距离的缩短显著增强,同时精馏分离流程具有安全可控、连续高效的特点。微尺度精馏分离技术具有独特优势,为化工精馏实现环保、降耗的目标提供了解决方案,也为流动化学合成系统的开发与完善提供了可能。

关键词: 蒸馏, 精馏, 微通道, 分离, 微化工技术, 流动化学

CLC Number: