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用KOH 为活化剂对经水蒸气进行轻度活化后的PAN 基活性炭毡(ACFs) 进行了二次活化,考察了KOH 的浸渍比、活化时间、活化温度对活性炭毡吸附性能及孔结构的影响,发现KOH 浸渍比在190 % 左右、活化温度在800℃、活化时间为50 min 的活化条件下所得ACFs 的吸附能力较高,适合作为制造纤维状的炭分子筛的前驱体。
The activation of PAN-based activated carbon felt (ACFs) with water vapor activated by KOH was carried out with KOH as activator. The effect of KOH impregnation ratio, activation time and activation temperature on the adsorption properties and pore structure of activated carbon felt It was found that the ACFs obtained under the activation conditions of KOH impregnation ratio of about 190%, activation temperature of 800 ° C and activation time of 50 min have higher adsorption capacity and are suitable as precursors for the production of fibrous carbon molecular sieves.