Release of nitrogen oxides during combustion of model coals(PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Release of nitrogen oxides during combustion of model coals(PDF)
- 发表刊物：
- Fuel
- 摘要：
- To study nitrogen oxides release, two model coals, which contain pyrrolic or pyridinic nitrogen, are prepared
and burned in an entrained flow combustion system during 800–1300°C. The influences of temperature,
mineral, interaction between the two nitrogen forms, and oxygen concentration are discussed. The results show that NO is the dominant species, and its release increases drastically as temperature rises. N₂O is only detected at 800 and 900°C. The interaction between the two nitrogen forms gives rise to an increase of NO release at low temperatures but a decrease at high temperatures. For pyrrolic nitrogen, Ca and Na promote NO release above 900°C, and Fe increases NO release for all temperatures investigated. As for pyridinic nitrogen, all minerals inhibit NO release above 900°C. The NO release decreases when catalyst load rate increases. NO release rises with increasing oxygen concentration first and then decline. More NO₂ is released when oxygen concentration is above 20%.
- 合写作者：
- Lei Deng, Xi Jin, Yu Zhang, Defu Che
- 是否译文：
- 否
- 发表时间：
- 2016-02-19