Abstract
In order to get some useful information on reforming one stoker boiler with the capacity of 75t/h by using gas reburning technology, the effect of some key factors such as stoichiometric coefficient, residence time, reburning temperature and reburning gas - coal heat ratio on NOx emission characteristics was studied in a one-dimensional experimental system. The results showed that the longer residence time of flue gas in reburning zone of furnace will get lower NOx emission, there exists an optimum residence time of flue gas in reburning zone, the optimum residence time is around 0.8s. There also exists an optimum stoichiometric ratio of air in reburning zone of furnace, the value of that is around 1.0. The removing rate of NOx increases with both increasing feeding rate of reburning gas and increasing reburning temperature. The gas reburning technology has been successfully used during reforming an stoker boiler with the capacity of 75t/h, the NOx removing efficiency was over than 50%.
| Original language | English |
|---|---|
| Title of host publication | 2011 International Conference on Electric Technology and Civil Engineering (ICETCE 2011) |
| Subtitle of host publication | Proceedings |
| Editors | Jiamei Deng, Xiangzhen Yan |
| Place of Publication | Piscataway NJ USA |
| Publisher | IEEE, Institute of Electrical and Electronics Engineers |
| Pages | 5972-5975 |
| Number of pages | 4 |
| ISBN (Print) | 9781457702907 |
| DOIs | |
| Publication status | Published - 2011 |
| Externally published | Yes |
| Event | International Conference on Electric Technology and Civil Engineering (ICETCE 2011) - Lushan, China Duration: 22 Apr 2011 → 24 Apr 2011 |
Conference
| Conference | International Conference on Electric Technology and Civil Engineering (ICETCE 2011) |
|---|---|
| Abbreviated title | ICETCE 2011 |
| Country/Territory | China |
| City | Lushan |
| Period | 22/04/11 → 24/04/11 |
Keywords
- Blast furnace gas
- Gas Reburning
- NOx reduction
- Stoker boiler