材料期刊网

用半焦制备柱状活性焦，用CO2做活化剂，通过正交实验考察了各种因素对活性焦性能的影响。最优方案为炭化温度600℃、炭化时间60min、活化温度850℃、活化时间90min、CO2流量100ml/min。最优条件下制备的活性焦碘吸附值为304.8mg/g，活性焦的比表面积由原来的3.371m2/g增加到303.6m2/g；孔容由原来的0.001823ml/g增加到0.2299ml/g；微孔面积大大增加，平均孔径达到了微孔的要求(＜5nm)；耐压强度很高，前5个小时之内的脱硫量达到80%以上，满足烧结烟气脱硫的要求。

Columnar activated coke was prepared from waste coke powder with CO2 as activator.The factors affecting the performance of the product were studied by means of orthogonal experiments. The results of the orthogonal analysis show that The overall optimal conditions in experiments were that carbonization temperature was 600℃,carbonization time was 60 min; activation temperature was 850℃;activation time was 90 min and CO2 flux was 100ml/min.The iodine adsorption value of the active coke prepared under the best conditions is 304.8mg/g. Specific surface area of activated coke is from 3.371m2/g to 303.6m2/g; Volume from 0.001823ml/g to 0.2299ml/g; Micropore area increased significantly, with an average pore size to meet the requirements of the micropore (<5nm); The activated coke has high strength; with the desulfurization capacity above 80% for 5 hours to meet the requirements of sintering flue gas desulfurization.