DBD等离子体辅助甲烷无氧偶联技术研究进展  

Research progress on DBD plasma-assisted non-oxidative coupling of methane technology

作　　者：殷冬冬 张熙 周隆昌 YIN Dongdong;ZHANG Xi;ZHOU Longchang(SINOPEC(Dalian)Research Institute of Petroleum and Petrochemical Co.,Ltd.,Dalian 116045,Liaoning,China)

机构地区：[1]中石化(大连)石油化工研究院有限公司,辽宁大连116045

出　　处：《低碳化学与化工》2025年第2期15-24,共10页Low-Carbon Chemistry and Chemical Engineering

摘　　要：传统甲烷热催化转化过程反应条件苛刻,而等离子体中的高能电子在低温条件下即可与甲烷分子碰撞生成自由基,并经重组反应生成C2烃和氢气等。介质阻挡放电(DBD)等离子体辅助甲烷无氧偶联因反应器结构简单且电场分布均匀,成为甲烷高价值利用的潜力技术。综述了DBD等离子体辅助甲烷无氧偶联技术的研究进展,对等离子体系中甲烷活化机理及反应过程进行了梳理,并从反应器结构、工艺参数和催化剂等角度出发,分析了影响甲烷转化率和产物选择性的关键因素,指出甲烷活化反应机理、等离子体与催化剂协同效应,以及反应器结构和工艺流程优化等是未来的重要研究方向。以上可为甲烷转化技术研究提供参考。The traditional thermal catalytic conversion of methane requires harsh reaction conditions,while high-energy electrons in plasma can collide with methane molecules to generate radicals at low temperatures,leading to the formation of C2 hydrocarbons and hydrogen through recombination reactions.Dielectric barrier discharge(DBD)plasma-assisted non-oxidative coupling of methane has become a potential technology for high-value utilization of methane due to its simple reactor structure and uniform electric field distribution.The research progress on DBD plasma-assisted non-oxidative coupling of methane technology was reviewed,the activation mechanism and reaction pathway of methane in plasma systems were elucidated,and the key factors affecting methane conversion rate and product selectivity were analyzed from the perspectives of reactor structure,process parameters and catalysts.It points out that the activation mechanism of methane,the synergistic effect between plasma and catalysts,as well as the optimization of reactor structure and process flow,are important research directions for the future.This can provide a reference for the research on methane conversion technology.

关 键 词：等离子体 甲烷转化 介质阻挡放电 

分 类 号：TQ032[化学工程] TQ039