摘要
在六枝烟煤中添加溴化钠（NaBr）,研究了在煤粉燃烧过程中NaBr对汞的形态转化和NO的还原规律的影响。实验在石英固定床反应器上进行,温度范围为800～1100℃。实验结果表明,温度窗口为250～400℃时,NaBr对单质汞的氧化有-定的促进作用;在合适的温度范围内（800～1000℃）,NaBr的添加能够有效地抑制NO的生成,取得比单独煤粉燃烧较好的脱硝效果。在900℃时,添加NaBr使NO生成量下降了60%。在1100℃时,NaBr对NO的还原有抑制作用。
The effect of NaBr on mercury oxidation and NO reduction during coal combustion was studied by adding NaBr to a bituminous coal before its combustion.Combustion experiments were carried out in a quartz fixed bed reactor in the temperature range of 800～1100℃.Experimental results showed that NaBr had promotive effect on mercury oxidation,especially at 250～400℃.In the temperature range of 800～1000℃,NaBr reduced NO production.At the temperature of 900℃, NO reduction ratio reached 60%.However,at the temperature of 1100℃,NO production slightly increased by adding NaBr.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2010年第8期1407-1410,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.50721140649
No.50721005)
关键词
溴化钠
汞
NO
煤燃烧
sodium bromide
mercury
nitric oxide
coal combustion
