活性炭纤维织物床层对乙酸乙酯的动态吸附  

Dynamic adsorption of ethyl acetate on adsorption beds filled with activated carbon fiber mesh and cloth

作　　者：周平[1] 张忠良[1] 游俊琴[1] 白书培[1] 宋彦龙[1] 韩浩[1] 董艳春[1] ZHOU Ping;ZHANG Zhong-liang;YOU Jun-qin;BAI Shu-pei;SONG Yan-long;HAN Hao;DONG Yan-chun(Research Institute of Chemical Defense, Beijing 100191, China)

机构地区：[1]防化研究院

出　　处：《新型炭材料》2019年第4期325-332,共8页New Carbon Materials

摘　　要：以活性炭纤维网和活性炭纤维布分别装填滤芯,进行乙酸乙酯的动态吸附实验。测试了不同气流比速条件下的床层压降和乙酸乙酯蒸气的穿透曲线,利用修正的Wheeler方程计算了床层动态吸附参数。结果表明,床层压降随着气流比速的增加呈指数增加;相同比速、厚度条件下,活性炭纤维网床层压降仅为活性炭纤维布的1/30;应用模拟计算表明,活性炭纤维网比活性炭纤维布更适用于大风量有机废气治理。The dynamic adsorption of ethyl acetate on two adsorption beds filled with (a) activated carbon fiber (ACF) mesh and (b) ACF cloth were investigated. The effects of gas velocity through the two beds on the pressure drop and breakthrough curves were compared. Results indicate that the pressure drop increases exponentially with the gas velocity and linearly with the filler thickness. The pressure drop of beds filled with the ACF mesh is only one thirtieth of that filled with the ACF cloth under the same gas velocity and filler thickness. The breakthrough curves were well fitted by the dynamic adsorption equation derived by Wheeler and modified by Jonas, from which the breakthrough time at a defined purification degree was obtained. The bed filled with the ACF mesh is superior to that filled with the ACF cloth in the purification of the volatile organic compounds at high gas velocities.

关 键 词：活性炭纤维网 活性炭纤维布 乙酸乙酯 动态吸附 床层压降 穿透曲线 

分 类 号：TQ342.74[化学工程—化纤工业]