微氧条件下改性活性炭对羰基硫的吸附性能

化工进展

微氧条件下改性活性炭对羰基硫的吸附性能

任晓光，李子燕，王学谦，陈炜，柏杨巍，蒋明，孙百余

昆明理工大学环境科学与工程学院，云南昆明 650093

出版日期:2011-02-05 发布日期:2011-02-05

Treatment of COS by modified activated carbon under low-oxygen content conditions

REN Xiaoguang，LI Ziyan，WANG Xueqian，CHEN Wei，BAI Yangwei，JIANG Ming，SUN Baiyu

School of Environmental Science and Engineering，Kunming University of Science and Technology，Kunming 650093，Yunnan，China

Online:2011-02-05 Published:2011-02-05

摘要/Abstract

摘要：

以工业4^#活性炭（AC4）为载体，制备KOH改性活性炭，对比研究了KOH、Na₂CO₃、KI改性活性炭在相同条件下吸附净化羰基硫（COS）的性能，为KOH＞Na₂CO₃＞KI；考察了反应条件对吸附净化COS气体的影响；并对空白活性炭、新鲜改性活性炭和吸附后改性活性炭作SEM-EDS表征分析。结果表明，质量分数为10%的KOH是最佳浸渍液，反应温度60 ℃、氧含量1.0%为改性活性炭的最佳反应条件。结合SEM-EDS表征分析表明：改性活性炭孔结构的变化和表面活性物质的生成使其对COS的吸附净化效果增强。

Abstract:

The modification of industrial activated carbon 4^#（AC4）with impregnated KOH and the adsorption capacities of KOH，Na₂CO₃，KI toward carbonyl sulfide（COS）were studied and compared，leading to the result：KOH＞Na₂CO₃＞KI. The effects of reaction conditions were investigated. The fresh activated carbon and modified activated carbon before and after COS adsorption were characterized by SEM-EDS. The results showed that 10%（w%）of KOH was the best impregnation and the optimum condition was at 60℃ with 1.0% of oxygen content. Furthermore，SEM-EDS distribution indicated that the result of adsorption became obviously better by the change of pore structure of modified activated carbon and the formation of surface active materials.

任晓光，李子燕，王学谦，陈炜，柏杨巍，蒋明，孙百余. 微氧条件下改性活性炭对羰基硫的吸附性能 [J]. 化工进展.

REN Xiaoguang，LI Ziyan，WANG Xueqian，CHEN Wei，BAI Yangwei，JIANG Ming，SUN Baiyu. Treatment of COS by modified activated carbon under low-oxygen content conditions[J]. Chemical Industry and Engineering Progree.