活性炭纤维脱除有色冶炼烟气中SO_2的性能  

Removal of High-concentration of SO_2 from Nonferrous Metallurgy Flue Gas by Activated Carbon Fibers

作　　者：范武波[1] 刘勇军[1,2] 王维竹 郭家秀[1,2] 李建军[1,2] 尹华强[1,2] 

机构地区：[1]四川大学建筑与环境学院,四川成都610065 [2]国家烟气脱硫工程技术研究中心,四川成都610065

出　　处：《四川化工》2014年第1期49-53,共5页Sichuan Chemical Industry

基　　金：大气环境模拟与污染控制四川省高校重点实验室开放课题资助(KFKT201301)

摘　　要：有色金属冶炼烟气中SO2浓度高、气量波动大。目前还没有特别有效的处理技术脱除有色金属冶炼烟气中高浓度的SO2。本文采用粘胶基活性炭纤维(ACF)为脱硫剂,对脱除模拟有色冶炼烟气中SO2(0.3%-0.8%)的性能进行了研究,考察了水蒸气含量、床层温度、SO2浓度以及体积空速对ACF脱硫性能的影响。研究结果表明:随着水蒸气含量的增加,ACF脱硫效率逐渐提高,随着反应温度的增加,脱硫效率先增加后减小。当烟气中SO2浓度为0.8%时,在水蒸气含量为33.6%、反应温度为100℃及空速为500h-1时,脱硫效果最佳,平台阶段脱硫效率达41%。降低入口SO2浓度和体积空速可进一步提高ACF脱硫的穿透时间、穿透硫容和平台阶段脱硫效率。Effective removal of high-concentration SOz from industrial metallurgical flue gas still remains a challenging problem. In this study, experiments on the removal of SO2with high-concentrations from sim- ulated flue gas were carried out using viscose-based activated carbon fiber （ACF）. The influence of vapor content, of reaction temperature, of SOz concentration, and of space velocity on the desulfurization per- formance of ACF was investigated respectively. The results show that steady-state SO2 concentration levels at the reactor exit was up first and down with increasing reaction temperature and decreased with the increase of H2 O content in the feed gas; the best desulfurization performance was observed at reaction temperature of 100 C with concentration of H2O of 33. 6% when SO2 concentration was 0. 8%, and ulti- mate stabilized desulfurization efficiency was up to 41%. The breakthrough time, SO2 breakthrough ca- pacity as well as stabilized desulfurization efficiency tration and space velocity. can further improve with decreasing inlet SO2 concentration and space velocity.

关 键 词：活性炭纤维 二氧化硫 烟气脱硫 

分 类 号：X758[环境科学与工程—环境工程]