重庆大学学报：自然科学版2012，Vol.35Issue(11)：81-85,5.
改性粉煤灰基烟气脱汞吸附剂氧化性能分析
Oxidation capability of modified fly ash based adsorbent for mercury in coal-fired flue gas
摘要
Abstract
Fly ash based adsorbent is dipping modified by NaCl or NaBr solution and the purpose is to improve their oxidation capability.Adsorption experiments of vapor-phase elemental mercury are performed in a laboratory-scale fixed-bed reactor.Physical properties of the adsorbent before and after modification are measured and the influences of the solution concentration and flue gas temperature on mercury oxidation rate are studied.The results show that when NaBr solution concentration is 5%,the mercury oxidation rate can reach 79.43%.The saturation adsorption quantity of absorbent 5%-NaBr is 1 700 ng/g and the service life is about 480 hours.Flue gas temperature played an important role in mercury oxidation and the best temperature ranged from 100 to 200 ℃.关键词
汞/粉煤灰/吸附剂/氧化性能Key words
mercury/fly ash/adsorbent/oxidation capability分类
资源环境引用本文复制引用
许志鹏,刘清才,姚春玲,杨剑,卫敏..改性粉煤灰基烟气脱汞吸附剂氧化性能分析[J].重庆大学学报：自然科学版,2012,35(11):81-85,5.基金项目
国家科技支撑计划项目 （）
