化工进展2018，Vol.37Issue(1)：368-374,7.DOI:10.16085/j.issn.1000-6613.2017-0712
城市污泥流化床燃烧过程中气态污染物排放特性
Gaseous pollutants emissions from fluidized bed combustion of municipal sewage sludge
江子箫 1陈晓平 1蒋志坚 2宋联 3朱葛 3梁财 1刘道银 1马吉亮1
作者信息
- 1. 东南大学能源热转换及其过程测控教育部重点实验室,江苏 南京 210096
- 2. 无锡国联环保能源集团有限公司,江苏 无锡 214131
- 3. 无锡国联环保科技股份有限公司,江苏 无锡 214131
- 折叠
摘要
Abstract
The combustion experiments of municipal sludge were carried out on the 6kWthbubbling fluidized bed test bed to study the effect of combustion temperature,excess oxygen ratio and secondary air ratio on NO and SO2emission characteristics in the flue gas recirculation atmosphere and air atmosphere. The results showed that the concentration of NO increased significantly and the SO2 emission concentration increased with the increase of the combustion temperature. With the excess oxygen ratio increased,the NO emission concentration increased significantly,and the SO2emission concentration decreased. Increasing the secondary air ratio,NO emission concentration showed a tendency to decrease first and then increase,but the effect of emission reduction was not obvious,and the SO2emission concentration increased slightly. In the flue gas recirculation atmosphere,the change of the NO emission concentration with the combustion temperature and the excess oxygen coefficient was consistent with that of the air atmosphere. With the flue gas recirculation rate increased from 0 to 1,NO emission concentration decreased significantly. When the flue gas recirculation rate reached a high value,the NO emission reduction trend decreased. In the early stage of the increase of flue gas recirculation rate,the concentration of CO in the flue gas increased significantly. When the recirculation rate exceeded 0.3,the CO concentration fluctuated within a certain range and no longer increased.关键词
污泥/烟气再循环/一氧化氮/二氧化硫/流化床Key words
sludge/flue gas recirculation/nitric oxide/sulfur dioxide/fluidized-bed分类
资源环境引用本文复制引用
江子箫,陈晓平,蒋志坚,宋联,朱葛,梁财,刘道银,马吉亮..城市污泥流化床燃烧过程中气态污染物排放特性[J].化工进展,2018,37(1):368-374,7.
