东南大学学报（自然科学版）Issue(1)：81-86,6.DOI:10.3969/j.issn.1001-0505.2016.01.014
添加湿空气对湿法脱硫净烟气中细颗粒物脱除性能
Performance study on fine particle removal from wet desulfurized flue gas by adding humid air
摘要
Abstract
Based on the principle of rainfall formation by the mixture of warm wet air flow and cold air in atmospheric environment, an investigation was conducted on promoting the growth and remov-al of fine particle (PM2.5) by adding moderate humid air into wet desulfurized flue gas.The degree of water vapor supersaturation and the amount of condensable water vapor distribution after mixing the desulfurized flue gas and humid air were calculated numerically.Supersaturated water vapor en-vironment of fine particle growth was established by adding humid air into desulfurized flue gas on the actual coal-fired experimental platform.The influences of the temperature and relative humidity, the addition of humid air and the desulfurized flue gas temperature on fine particle removal were ana-lyzed.The results show that PM2.5 in the desulfurized flue gas can be removed effectively by adding moderate humid air.The degree of the mixed flue gas supersaturation and the amount of condensable water vapor increase with the increase of the relative humidity of flue gas and humid air and the tem-perature difference between these two.The removal efficiency of fine particles increases with the in-crease of the desulfurized flue gas temperature and the addition and relative humidity of humid air.It would be appropriate by adding humid air while the desulfurized flue gas temperature is higher(≥55 to 60 ℃) .关键词
湿法脱硫净烟气/细颗粒物/湿空气/水汽相变/脱除Key words
wet desulfurized flue gas/fine particles/humid air/heterogeneous condensation/removal分类
资源环境引用本文复制引用
姜业正,吴昊,雒飞,杨林军..添加湿空气对湿法脱硫净烟气中细颗粒物脱除性能[J].东南大学学报（自然科学版）,2016,(1):81-86,6.基金项目
国家重点基础研究发展计划（973计划）资助项目（2013CB228505）、国家自然科学基金资助项目（21276049）． （）
