活性碳纤维对NO2气体动态吸附研究

为探讨粘胶基活性碳纤维（ＡＣＦ）对ＮＯ２气体的动态吸附，考察了ＮＯ２浓度、流速、湿度、温度及ＡＣＦ再生次数对吸附效率的影响。结果表明：ＮＯ２在低浓度下，ＡＣＦ能长时间高效工作；流速增加，穿透时间缩短，但穿透吸附量变化不明显；湿度增加，穿透时间缩短，穿透吸附量降低；温度升高、ＡＣＦ再生次数增加，穿透时间缩短，穿透吸附量及饱和吸附量均降低。证明ＡＣＦ对ＮＯ２的吸附以物理吸附为主，但存在一定程度的化学吸

Study on Dynamic Absorption of Nitrogen Dioxide onto Activated Carbon Fibers

In orde to study dynamic absorption of nitrogen dioxide gas onto viscose base activated carbon fibers(ACF),the influence of NO 2 inlet concentration,temperature,gas flow rate,gas humidity and regeneration times on absorption efficiency was investigated.The results showed that ACF could work validly for long time with low concentration of NO 2;If gas flow rate increased,breakthrough absorption time decreased,but breakthrough absorption amount did not change obviously;If gas humidity increased,breakthrough absorption time and breakthrough absorption amount decreased;If temperature and regeneration times increased,breakthrough absorption time,breakthrough absorption amount and saturation absorption amount all decreased,It demonstrated that the absorption of NO 2 onto ACF was mainly physical absorption,but existed a little chemical absorption.