摘要
以CO_(2)为活化气氛,通过一步快速热解活化法从黑山煤粉与生物质混合物中制取活性炭。讨论了不同质量比率、活化温度和CO_(2)浓度对活性炭比表面积的影响。通过N_2吸附(BET)、扫描电镜(SEM)、拉曼光谱(Raman)和红外光谱(FTIR)对活性炭的性能进行了表征。确定了制备活性炭的最佳条件为活化温度900℃、质量比1、CO_(2)体积分数30%、活化时间120min时,活性炭的比表面积和孔容最大,分别为901m^(2)/g和0.39cm^(3)/g。最后,用乙酸乙酯吸附量验证了其吸附性能,最大累积吸附量为766.51mg/g。
Activated carbon was prepared from the mixture of Heishan coal powder and biomass by one step rapid pyrolysis activation method with CO_(2) as activation atmosphere.The effects of different mass ratio,activation temperature and CO_(2) concentration on the specific surface area of activated carbon were discussed.The properties of activated carbon were characterized by N_(2) adsorption(BET),scanning electron microscopy(SEM),Raman spectroscopy(Raman)and infrared spectroscopy(FTIR).The optimum conditions for preparation of activated carbon were determined as follows:when the activation temperature was 900℃,the mass ratio was 1,the concentration of CO_(2) was 30%,and the activation time was 120min,the specific surface area and pore volume of activated carbon were the largest,which were 910m^(2)/g and 0.39cm^(3)/g,respectively.The adsorption capacity of activated carbon was verified by the adsorption capacity of ethyl acetate,and the maximum cumulative adsorption capacity was 766.51mg/g.
作者
金春江
王鲁元
陈惠敏
程星星
张兴宇
孙荣峰
耿文广
仇洪波
JIN Chunjiang;WANG Luyuan;CHEN Huimin;CHENG Xingxing;ZHANG Xingyu;SUN Rongfeng;GENG Wenguang;QIU Hongbo(Energy Research Institute of Shandong Academy of Sciences,Ji’nan 250014,Shandong,China;School of Energy and Power Engineering,Qilu University of Technology,Ji’nan 250014,Shandong,China;Changji University,Changji 831100,Xinjiang,China;School of Energy and Power Engineering,Shandong University,Ji’nan 250061,Shandong,China;Shandong Guoshun Construction Group Co.,Ltd.,Ji’nan 250300,Shandong,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2021年第S02期162-175,共14页
Chemical Industry and Engineering Progress
关键词
煤
生物质
活化
活性炭
吸附
coal
biomass
activation
activated carbon
adsorption
