新疆高惰质组煤基活性炭制备与表征

以高惰质组准东不粘煤为原料制备活性炭，基于Box-Behnken响应曲面法，采用水蒸气活化制备了煤基活性炭，并测定了其碘吸附量，使用扫描电镜(SEM)观察了活性炭表面形貌，通过低温氮气吸附法得到了活性炭比表面积、总孔体积和孔径分布等物理结构特征。结果表明，最佳活化水平为活化温度900℃，活化时间90min，水蒸气流量6mL/min。活化时间、活化温度和水蒸气流量对碘吸附量均有影响，其中活化时间影响程度最大，活化温度次之，水蒸气流量最小，且因素之间交互作用不显著。比表面积、总孔体积和微孔数量均会影响碘吸附量，其中微孔数量起主要作用。

Preparation and characterization of Xinjiang high inertinite coal-based activated carbon

Abstract: Xinjiang Zhundong high inertinite of coal was selected to prepare activated carbon. The influence of carbonization process on iodine adsorption was studied according to the characteristics of Zhundong coal pyrolysis. Based on the Box-Behnken response surface methodology method, the activation process parameters were discussed and a prediction model for iodine adsorption was established based on activation temperature, activation time and water vapor flow. Researching the highest iodine adsorption of activated carbon by liquid nitrogen adsorption and scanning electron microscopy，the optimum activation conditions for preparation of activated carbon was as follows ：activation temperature of 900℃, activation time of 90min, and water vapor flow rate 4ml/min.