ACF催化臭氧化降解苯酚的反应参数影响  

Effect of operating parameters on ozonation of phenol catalyzed by activated carbon fiber

作　　者：曲险峰[1] 郑经堂[1] 何小超[1] 张延宗[1] 

机构地区：[1]中国石油大学(华东)重质油加工国家重点实验室,山东东营257062

出　　处：《化工进展》2007年第9期1283-1287,共5页Chemical Industry and Engineering Progress

摘　　要：研究了活性碳纤维(ACF)催化臭氧化降解苯酚过程中各种参数的影响。结果表明,ACF能够显著提高臭氧化效率,当ACF为1g,反应10min时苯酚的去除率为96.8%,而同样条件下活性炭仅为68%;臭氧化效率在酸性下几乎相同并高于碱性下,而且在碱性下随pH值升高而降低;臭氧化空气流量从0.04m3/h增加到0.16m3/h,反应10min时的效率提高为17%;苯酚初始浓度升高到500mg/L仅使臭氧化效率下降不到10%。重复实验表明臭氧化过程中ACF的催化性能可以得到原位再生。The effect of the operating parameters on the ozonation of phenol aqueous solution in me presence of activated carbon fiber （ACF） was studied. The results showed that ACF could improve the ozonation significantly; the phenol removal at 10 min was 96.8% for lg ACF, but only 68% for lg GAC. The efficiencies of the process under acidic conditions were almost the same and higher than those under basic conditions; the increase of basic pH led to the decrease of phenol removal at the initial stage of the ozonation. The efficiency of ACF ozonation was improved by 17% at 10min when the ozonized-air flow rate increased from 0.04ma/h to 0.16ma/h. The increase of initial concentration from 100mg/L to 500mg/L only caused the decrease of phenol removal by less than 10%, but the total phenol removal increased significantly. The repeated use of ACF showed that ozonation could provide in situ ACF regeneration, which was considered highly beneficial in the industrial treatment process.

关 键 词：活性碳纤维 臭氧化 吸附 苯酚 

分 类 号：X131.2[环境科学与工程—环境科学] X703