吐温水溶液处理甲苯废气的研究  

Study on Treatment of Toluene Waste Gas with Tween Aqueous Solution

作　　者：何璐红 付大勇 赵扬 HE Lu-hong;FU Da-yong;ZHAO Yang(Henan Technical Institute,Zhengzhou 450042,China)

机构地区：[1]河南应用技术职业学院,河南郑州450042

出　　处：《盐科学与化工》2022年第6期14-19,23,共7页Journal of Salt Science and Chemical Industry

基　　金：2022年度河南省高等学校重点科研项目《新型水溶液吸收剂处理甲苯类VOCs的研究及应用》(22B530002);河南省重点研发与专项(科技攻关)项目《室内甲醛可循环治理关键技术及协同净化装置的研判》(222102320421)。

摘　　要：文章采用向水中添加表面活性剂的方法,处理甲苯废气,选取吐温系列的水溶液作为吸收剂,研究了吐温的临界胶束浓度(CMC)、增溶量以及对甲苯去除率的影响,并探索了操作条件。结果表明:吐温水溶液对甲苯的增溶量与去除率呈正相关,随着增溶量的增加,甲苯去除率也随之增大。当空气流量300 mL/min,Tween-20水溶液浓度为1 CMC,喷淋量为55 mL/min,T=25℃,甲苯浓度为1200 mg/m^(3)时,去除率最高为64%。In this article,toluene waste gas was treated by adding surfactant into water.The aqueous solution of Tween series was selected as absorbent.The effects of Tween’s critical micelle concentration(CMC),solubilization amount and toluene removal rate were studied,and the operating conditions were explored.The results showed that there was a positive correlation between the solubilization and the removal rate of toluene,As the amount of solubilization increased,the toluene removal rate also increased.When air flow rate was 300 mL/min,Tween-20 aqueous solution concentration was 1cmc,spray rate was 55 mL/min,T=25℃,toluene concentration was 1200 mg/m^(3),the highest removal rate was 64%.

关 键 词：表面活性剂 吐温 甲苯 去除率 

分 类 号：X511[环境科学与工程—环境工程]