A critical review on plasma-catalytic removal of VOCs: Catalyst development, process parameters and synergetic reaction mechanism

Tian Chang; Yu Wang; Yaqi Wang; Zuotong Zhao; Zhenxing Shen; Yu Huang; Savita K P Veerapandian; Nathalie De Geyter; Chuanyi Wang; Qingcai Chen; Rino Morent

doi:10.1016/j.scitotenv.2022.154290

A critical review on plasma-catalytic removal of VOCs: Catalyst development, process parameters and synergetic reaction mechanism

Sci Total Environ. 2022 Jul 1:828:154290. doi: 10.1016/j.scitotenv.2022.154290. Epub 2022 Mar 4.

Authors

Affiliations

¹ School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China; Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China; Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 - B4, 9000 Ghent, Belgium; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710049, China; State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China.
² School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
³ Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
⁴ State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710049, China.
⁵ Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 - B4, 9000 Ghent, Belgium. Electronic address: Savita.KaliyaPerumalVeerapandian@UGent.be.
⁶ Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 - B4, 9000 Ghent, Belgium.
⁷ School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China. Electronic address: chenqingcai@sust.edu.cn.

PMID: 35248631
DOI: 10.1016/j.scitotenv.2022.154290

Abstract

It is urgent to control the emission of volatile organic compounds (VOCs) due to their harmful effects on the environment and human health. A hybrid system integrating non-thermal-plasma and catalysis is regarded as one of the most promising technologies for VOCs removal due to their high VOCs removal efficiency, product selectivity and energy efficiency. This review systematically documents the main findings and improvements of VOCs removal using plasma-catalysis technology in recent 10 years. To better understand the fundamental relation between different aspects of this research field, this review mainly addresses the catalyst development, key influential factors, generation of by-products and reaction mechanism of VOCs decomposition in the plasma-catalysis process. Also, a comparison of the performance in various VOCs removal processes is provided. Particular emphasis is given to the importance of the selected catalyst and the synergy of plasma and catalyst in the VOCs removal in the hybrid system, which can be used as a reference point for future studies in this field.

Keywords: Catalysis; Non-thermal plasma; Process parameter; Reaction mechanism; Volatile organic compounds.

Publication types

Review

MeSH terms

Catalysis
Humans
Volatile Organic Compounds*

Substances

Volatile Organic Compounds