东南大学学报（自然科学版）2011，Vol.41Issue(1)：118-123,6.DOI:10.3969/j.issn.1001-0505.2011.01.023
蒸汽相变促进湿法脱硫净烟气中细颗粒物的脱除
Improving removal of fine particles from wet-process desulfurized flue gas by heterogeneous condensation
摘要
Abstract
The influences of demister species, characteristics of desulfurized flue gas, the addition amount of water vapor and spraying cold water above the demister on the fine particles removal were investigated in a wet limestone-based process combining heterogenous condensation of steam. The results show that removal efficiency of fine panicle can be significantly improved by adding steam into the wet desulfurized flue gas. And the removal efficiency increases with the amount of steam added. The wire mesh demister is more suitable to the removal of the grown fine particles than the wave-plate demister. The characteristics of desulfurized flue gas, such as temperature, moisture content and fine panicle concentration, have a remarkable influence on the removal of fine particles.Due to the adherence of fly ash to the inner wall of the condensation chamber, the influence of surface characteristics of the condensation chamber is not obvious. Additionally, the removal effect can be improved by spraying cold water above the demister while adding steam, which can make an increase of removal efficiency from about 30％ to more than 60％.关键词
湿法脱硫净烟气/蒸汽相变/细颗粒物/脱除Key words
wet desulfurized flue gas/ heterogeneous condensation/ fine particles/ removal分类
资源环境引用本文复制引用
陆斌,杨林军,辛成运..蒸汽相变促进湿法脱硫净烟气中细颗粒物的脱除[J].东南大学学报（自然科学版）,2011,41(1):118-123,6.基金项目
国家高技术研究发展计划(863计划)资助项目(2008AA05Z306)、江苏省自然科学基金资助项目(BK2008283). （863计划）
