Abstract: The immobilization of the active metal copper into activated carbon support is carried out with impregnation methods, and is characterized by N₂ absorption-adsorption and transmission electron microscope. The modified AC-2 activated carbon is used to adsorb benzene model compounds. When the inlet benzene concentration is 6.5 g/m³, the space velocity is 1 000 h^-1, and the adsorption temperature is 20 ℃, the breakthrough time and adsorption capacity is 13 h and 132 g. After eight adsorption-regeneration cycles, AC-2 activated carbon adsorbent can still control the outlet concentration of fixed bed adsorber below 30 mg/m³.The modified AC-2 activated carbon is also used to absorb and adsorb naphtha volatile VOCs. When the VOCs concentration at the air inlet is 100~150 g/m³, the space velocity is 1 000 h-1 and the adsorption temperature is 20 ℃, the breakthrough time is 4.5 h. After four diesel absorption-adsorption-regeneration cycles, AC-2 activated carbon can still maintain a relatively stable VOCs removal performance. Compared with the normal temperature desorption model, the thermal desorption model is more suitable for the desorption and regeneration of activated carbon adsorbent.

Key words: actived carbon adsorbent, adsorption,absorption-adsorption, regeneration

摘要： 采用负载浸渍法，将活性金属铜引入活性炭孔道内部，并且对其进行N₂吸附-脱附及透射电镜表征。使用改性后的AC-2活性炭吸附剂吸附脱除苯模型化合物，当入口苯质量浓度为6.5 g/m³、体积空速为1 000 h^-1、吸附温度为20 ℃时，穿透时间为13 h，吸附量为132 g。经过8个吸附-再生周期，AC-2活性炭吸附剂仍可将固定床吸附器出口苯质量浓度控制在30 mg/m³以下。使用改性后的AC-2活性炭吸附剂吸收-吸附脱除石脑油中的VOCs(挥发性有机物)，在进气口VOCs质量浓度为100~150 g/m³、体积空速为1 000 h^-1、吸附温度为20 ℃的条件下，其穿透时间为4.5 h。经过4个柴油吸收-吸附-再生周期，AC-2活性炭吸附剂仍维持较稳定的脱VOCs性能。热脱附模型相较于常温脱附模式，更加适用于活性炭吸附剂的脱附再生。

关键词: 活性炭吸附剂, 吸附, 吸收-吸附, 再生