饱和活性炭热再生过程残余物形成及影响因素分析  

Analysis of heel formation and influencing factors during the thermal regeneration process of saturated activated carbon

作　　者：张伟业 申婧 潘子鹤 宋一朋 成怀刚 张慧荣 ZHANG Weiye;SHEN Jing;PAN Zihe;SONG Yipeng;CHENG Huaigang;ZHANG Huirong(Institute of Resources and Environmental Engineering,Shanxi University,Taiyuan 030031,China;Taiyuan Solid Waste Disposal Center,Taiyuan 030000,China)

机构地区：[1]山西大学资源与环境工程研究所,山西太原030031 [2]太原固废处置中心,山西太原030000

出　　处：《工业水处理》2025年第1期17-25,共9页Industrial Water Treatment

基　　金：山西省重点研发计划项目(202102090301010,20210209301028);山西省基础研究计划项目(202303021212013);山西省高等学校科技创新项目(2022L005);山西省黄河实验室科技攻关项目(YRL20220010,YRL-202108)。

摘　　要：饱和活性炭热再生工艺具有适用性强、对吸附质没有选择性的优点,是工业处理中最常用的方法,但热再生过程中吸附质在活性炭内发生分解、聚合等反应,残余物沉积在孔隙中,造成堵塞,使热再生处理后的活性炭比表面积和孔容积下降。了解热再生过程残余物沉积的机理及关键影响因素,减少残余物沉积,最大化恢复活性炭的吸附性能是热再生的关键。简要介绍了活性炭热再生工艺及再生过程中残余物沉积的机制,重点综述了再生过程中单一和混合吸附质情况下残余物沉积的特点,以及吸附质和活性炭的物化性质与残余物沉积的关系,阐明了热再生温度、气氛、再生加热速率、吹扫气体流速以及多种操作条件对残余物沉积的影响机制,据此对未来活性炭再生的工业发展方向提出建议。Thermal regeneration is the most commonly used method for treating saturated activated carbon due to its high processing capacity and non-selectivity for adsorbates.However,during thermal regeneration,the adsorbates go through decomposition,polymerization and other reactions inside the activated carbon.The heels are deposited in the pores,causing blockage and decreasing the specific surface area and pore volume of the activated carbon after thermal regeneration.To ensure successful thermal regeneration,it is crucial to understand the mechanism and key factors influencing heel deposition,reduce its occurrence,and maximize the restoration of adsorption performance.This article provided an overview of the thermal regeneration process of activated carbon,and the mechanisms of heel deposition during regeneration.It focused on the characteristics of heel deposition under single and mixed ad⁃sorbates in the regeneration process,as well as the relationship between the physicochemical properties of adsor⁃bates,activated carbon and heel deposition.The influence of thermal regeneration temperature,atmosphere,regen⁃eration heating rate,purge gas flow rate,and other operating conditions on heel deposition was elucidated.Accord⁃ingly,recommendations were provided for the future industrial development of activated carbon regeneration.

关 键 词：活性炭 再生 残余物 吸附 操作条件 

分 类 号：TQ424.1[化学工程]