低温等离子体耦合催化降解丙酮的实验研究  

Experimental Study of Acetone Degradation by Non-thermal Plasma-coupled Catalysts

作　　者：杜宇 Du Yu(State Key Laboratory of Safety and Control for Chemicals,SINOPEC Research Institute of Safety Engineering Co.,Ltd.,Shandong,Qingdao,266104)

机构地区：[1]中石化安全工程研究院有限公司化学品安全控制国家重点实验室,山东青岛266104

出　　处：《安全、健康和环境》2023年第6期30-36,共7页Safety Health & Environment

基　　金：中国石化科技部项目(KL22059),低温等离子体耦合催化处理烷烃作用机制研究。

摘　　要：低温等离子体(NTP)技术是降解VOCs的有效手段,耦合催化技术结合了NTP技术和催化剂的优势,有利于提升VOCs的去除效率并实现副产物的有效控制。基于NTP技术降解VOCs的已有研究成果,开展耦合催化降解丙酮的实验研究,对去除效率和副产物转化状况进行分析。结果显示,在同等能量密度下,耦合催化技术可以明显提升丙酮的去除效率,能量利用效率与单独等离子体处理相比大幅提高。当气体流速为0.5 L/min时,耦合催化处理丙酮的去除效率可以达到94.1%,同时实现O_(3)的高效分解和利用,大幅降低O_(3)排放,提高CO_(2)的选择性,实现深度氧化,减少二次污染。耦合催化技术在VOCs治理领域展现出良好的应用前景。Non-thermal Plasma(NTP)technology is an effective means to degrade VOCs.Coupled catalysis technology combines the advantages of NTP technology and catalyst,which is conducive to improving the removal efficiency of VOCs and realizing the effective control of by-products.Based on the study of the degradation of VOCs by NTP technology,the coupled catalytic degradation of acetone was carried out,and the removal efficiency and the status of byproduct transformation were analyzed.The results showed that the coupled catalysis technology significantly improved the removal efficiency of acetone at the same energy density,and the energy utilization efficiency was significantly improved compared with the single plasma treatment.When the gas flow rate was 0.5 L/min,the removal efficiency of acetone reached 94.1%.Coupled catalytic treatment can also achieve high efficiency decomposition and utilization of O_(3),the emission of O_(3) was greatly reduced.Besides,it can also improve the selectivity of CO_(2),achieve deep oxidation,and reduce secondary pollution,showing a good application prospect in the field of VOCs governance.

关 键 词：低温等离子体 耦合催化 丙酮降解 臭氧降解 能量 利用效率 

分 类 号：X511[环境科学与工程—环境工程]