改性半焦对苯酚吸附性能的研究  

STUDY ON PHENOL ADSORPTION CHARACTERISTICS OF MODIFIED SEMI-COKE

作　　者：杨晓霞[1] 罗东谋 

机构地区：[1]延安大学化学与化工学院陕西省化学反应工程重点实验室,陕西延安716000

出　　处：《精细石油化工》2017年第1期47-50,共4页Speciality Petrochemicals

基　　金：延安大学校级科研计划项目(YDK2015-51);陕西省教育厅专项科研计划项目(15JK1835)

摘　　要：采用活化处理及碱处理的方法对半焦进行改性,并用于吸附苯酚研究。考察了吸附温度、时间、苯酚溶液初始浓度以及改性半焦用量等因素对改性半焦吸附苯酚过程的影响。结果表明,当吸附温度20℃,苯酚溶液初始浓度100mg/g,改性半焦质量20mg,吸附时间60min,改性半焦对苯酚的平衡吸附量为23.69mg/g。动力学研究表明准二级动力学方程能很好地拟合该吸附过程,吸附平衡研究表明该吸附过程符合Freundlich模型。Semi-coke was modified by activation and alkali treatment,and its adsorption of phenol was studied.The effect of adsorption temperature,time,initial phenol concentration and the dosage of modified semicoke on adsorption amount was investigated.The results showed that the equilibrium adsorption amount after 60 min was about 23.69mg/g at a temperature of 20℃and an initial phenol concentration of 100mg/g,with the dosage of modified semi-coke of 20 mg.The kinetic study showed that the data were well described by the pseudo-second order mode,and the equilibrium study showed that the data fitted Freundlich model well.

关 键 词：改性半焦 吸附 苯酚 

分 类 号：X703[环境科学与工程—环境工程]