Process intensification technique of gas-liquid plasma and its application in advanced oxidation processes

doi:10.16085/j.issn.1000-6613.2017-2215

Abstract

Abstract: Process intensification technique of gas-liquid plasma has been a newly developed interdisciplinary field since 1980s,which shows significant values in the applications of advanced oxidation processes,liquid phase chemosynthesis,nano-materials synthesis and so on. From the point of view of chemical engineering,it is a multi-phase transport and reaction process with special external field combining both physical and chemical effects of high-energy electronic collision,chemically active component oxidation,ultraviolet light and shock waves,etc. Because of the complexity and multidisciplinary feature of the gas-liquid plasma itself,the involved physical and chemical mechanism has not been fully understood. At the same time,the lack of systematic study on the gas-liquid plasma reactors has significantly restricted the further application and development of the process intensification technique of gas-liquid plasma. The aims of this paper are to review the recent advances of gas-liquid plasma,involving the diagnosis technique,process mechanism,reactor design and the applications in advanced oxidation processes. Finally,the future research direction on the gas-liquid plasma assisted processes is given.

Key words: gas-liquid plasma, mechanism, reactor, process intensification, advanced oxidation processes

摘要： 气液等离子体过程强化技术是20世纪80年代发展起来的一门新兴交叉学科，在高级氧化过程、液相化学合成和纳米材料制备等领域具有巨大的研究与应用价值。从化学工程的角度理解，气液等离子体过程强化技术的本质是特殊外场作用下的多相传递与反应过程，其中涉及高能电子碰撞、化学活性组分氧化、紫外光解和冲击波等多种物理与化学作用。由于气液等离子体过程强化技术本身的复杂性及多学科交叉性，对其复杂的物理与化学耦合机理还未得到充分认识，同时缺乏对气液等离子体反应器的系统研究及设计指导，从而极大程度地限制了该技术的进一步应用和发展。为全面认识气液等离子体过程强化技术，本文综述了近年来有关气液等离子体过程强化技术的诊断及机理研究进展，并剖析了气液等离子体反应器的设计思路，同时回顾和展望了气液等离子体高级氧化过程的最新研究进展，讨论了气液等离子体过程强化技术的研究方向。

关键词: 气液等离子体, 作用机理, 反应器, 过程强化, 高级氧化过程

CLC Number:

O646.9

FENG Xuelan, CHENG Yi. Process intensification technique of gas-liquid plasma and its application in advanced oxidation processes[J]. Chemical Industry and Engineering Progress, 2018, 37(04): 1247-1256.

冯雪兰, 程易. 气液等离子体过程强化技术及其在高级氧化过程的应用[J]. 化工进展, 2018, 37(04): 1247-1256.

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