湿度对活性炭吸附二氯甲烷的影响  

Influence of Humidity on Adsorption of Dichloromethane on Activated Carbon

作　　者：张纪文 徐遵主 李明 金小贤 ZHANG Ji-wen;XU Zun-zhu;LI Ming;JIN Xiao-xian(The Group of Nanjing Vnivesity Academy of Environmental Planning&Design,Jiangsu Nanjing 210093,China)

机构地区：[1]南京大学环境规划设计研究院集团股份公司,江苏南京210093

出　　处：《广州化工》2021年第1期38-39,88,共3页GuangZhou Chemical Industry

摘　　要：采用平均孔径为3 nm、比表面积为1300 m 2/g、四氯化碳吸附值为120 CTC%的木质介孔活性炭,吸附浓度约为3000 mg/m 3的二氯甲烷废气。干燥条件下的饱和吸附容量为70 mg/g,相对湿度增加至80%RH时,饱和吸附容量仍能维持在60 mg/g以上;相对湿度继续增加至95%RH时,饱和吸附容量为49.2 mg/g。介孔木质活性炭具备实际工程应用的巨大潜力,可以在高湿度条件下有效吸附二氯甲烷。The wooden mesoporous activated carbon with an average pore diameter of 3 nm,a specific surface area of 1300 m 2/g,and a carbon tetrachloride adsorption value of 120 CTC%was used to absorb dichloromethane waste gas with a concentration of about 3000 mg/m 3.The saturated adsorption capacity under dry conditions was 70 mg/g,when the relative humidity increased to 80%RH,the saturated adsorption capacity can still be maintained above 60 mg/g.When the relative humidity continued to increase to 95%RH,the saturated adsorption capacity was 49.2 mg/g.Mesoporous wood activated carbon had great potential for practical engineering applications,and can effectively adsorb dichloromethane under high humidity conditions.

关 键 词：活性炭 吸附 二氯甲烷 

分 类 号：X511[环境科学与工程—环境工程]