多相反应体系的微界面强化简述

doi:10.11949/j.issn.0438-1157.20171400

化工学报 ›› 2018, Vol. 69 ›› Issue (1): 44-49.DOI: 10.11949/j.issn.0438-1157.20171400

多相反应体系的微界面强化简述

张志炳, 田洪舟, 张锋, 周政

南京大学化学化工学院, 江苏南京 210023

收稿日期:2017-10-19 修回日期:2017-11-03 出版日期:2018-01-05 发布日期:2018-01-05
通讯作者: 张志炳
基金资助:
国家自然科学基金项目（21476105，91634104，91434101，21776122）。

Overview of microinterface intensification in multiphase reaction systems

ZHANG Zhibing, TIAN Hongzhou, ZHANG Feng, ZHOU Zheng

School of Chemistry & Chemical Engineering, Nanjing University, Nanjing 210023, Jiangsu, China

Received:2017-10-19 Revised:2017-11-03 Online:2018-01-05 Published:2018-01-05
Contact: 10.11949/j.issn.0438-1157.20171400
Supported by:
supported by the National Natural Science Foundation of China(21476105, 91634104, 91434101, 21776122).

摘要/Abstract

摘要：

加氢、氧化等气液慢反应过程广泛存在于现代过程工业之中，这些反应过程一般受传质速率控制。因此，对这类多相反应体系的传质强化一直是研究热点之一。但总体而言，除外场和微通道（微流控）强化等一类强化反应器外，以往的研究大多集中于界面尺度为毫-厘米级的传统反应器的搅拌与混合方式、气泡分布状态、流体流型、构效关系等方面，而鲜有将研究视角投放到传统以米为直径计量单位的反应器平台上如何构建尺度为微米级的界面体系及其特殊效应方面。探讨了多相反应体系的微界面反应强化理念，并简述了微界面的涵义、微界面反应强化与构效调控方法、微界面反应器的结构与形成原理、微界面体系的微颗粒测试与相界面表征技术、微界面反应强化面临的问题与挑战等，以与本领域同行共同研讨。

关键词: 微界面, 多相反应, 气液反应器, 微尺度, 反应强化, 构效调控

Abstract:

Gas-liquid systems with low reaction rates such as hydrogenation and oxidation are widely present in modern industrial processes. These reactions are generally controlled by mass transfer. Therefore, mass transfer intensification in multiphase reaction systems has been one research hotspot in chemical engineering. Except studies on reactors intensified by external field or micro-channel (micro-fluidics), most studies were focused on traditional reactors with interface scale of millimeter to centimeter by means of stirring and mixing, bubble size distribution, flow pattern, and structure-effect relationship. It has rarely been studied how to build a microinterface system and to evaluate its effects in reactors with a diameter of several meters. In this paper, the microinterface reaction intensification in heterogeneous systems was discussed. The micro-interface definition, microinterface reaction intensification, structure-effect regulation, structure and formation principle of microinterface reactors, techniques of microparticle measurement and interface characterization were briefly described. The challenges and problems in microinterface reaction intensification was also presented for discussion.

Key words: microinterface, multiphase reaction, gas-liquid reactor, microscale, reaction intensification, structure-effect regulation

中图分类号:

TQ021.4

张志炳, 田洪舟, 张锋, 周政. 多相反应体系的微界面强化简述[J]. 化工学报, 2018, 69(1): 44-49.

ZHANG Zhibing, TIAN Hongzhou, ZHANG Feng, ZHOU Zheng. Overview of microinterface intensification in multiphase reaction systems[J]. CIESC Journal, 2018, 69(1): 44-49.

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多相反应体系的微界面强化简述

Overview of microinterface intensification in multiphase reaction systems

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