4种分子筛对VOCs静态吸附与脱附性能研究  

Study on static adsorption and desorption properties of VOCs by molecular sieves

作　　者：杨宇轩 杜昭[1,2,3] 刘倩 YANG Yu-xuan;DU Zhao;LIU Qian(School of Environmental Science and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;National Local Joint Engineering Research Center for Volatile Organic Compounds and Odorous Pollution Control Technology,Shijiazhuang 050018,China;Hebei Provience Air Pollution and Control Promotion Center,Shijiazhuang 050018,China)

机构地区：[1]河北科技大学环境科学与工程学院,河北石家庄050018 [2]挥发性有机物与恶臭污染防治技术国家地方联合工程研究中心,河北石家庄050018 [3]河北省大气污染防治中心,河北石家庄050018

出　　处：《应用化工》2019年第12期2930-2932,共3页Applied Chemical Industry

基　　金：河北省科技支撑计划(173976121D);河北省重点研发计划项目(18273712D);2018年省级战略新兴产业发展专项资金(360102)

摘　　要：采用干燥器-静态吸附法测定3A、4A、5A、10X四种分子筛对甲醇、苯、正己烷等VOCs的吸附性能。结果表明,10X分子筛在吸附量上明显高于其它3种分子筛,对苯、甲醇、正己烷的吸附量分别达到了96,88,75 mg/g。微波脱附和热脱附的脱附能力差别甚微,微波脱附时间短。分子筛再生率>95%,与之前吸附量相当,未对分子筛的内部结构产生影响。The adsorption performance of four molecular sieves(3A,4A,5A,10X)on VOCs such as methanol,benzene and n-hexane was determined.The adsorption amount of 10X molecular sieve was significantly higher than that of the other three molecular sieves,and the adsorption amounts of benzene,methanol and n-hexane reached 96,88,75 mg/g,respectively.There is no difference in the desorption ability between microwave desorption and thermal desorption.After the desorbed molecular sieve is re-adsorbed,it is almost the same as the previous adsorption amount,and does not affect the internal structure of the molecular sieve.

关 键 词：分子筛 VOCS 吸附量 脱附再生 

分 类 号：TQ028.1+5[化学工程]