摘要
在小型增压流化床内研究N2 O和NO的排放特性 ,研究运行条件包括压力、氧浓度以及床层温度对N2 O和NO排放量的影响 .结果表明 ,在增压燃烧的条件下 ,随着床温的增加 ,N2 O的排放量减少得很快 ;而床温对NO的排放影响很小 ,此结果与常压下的结果不同 .随着氧浓度的增加 ,N2 O和NO的排放量均增加 ,但N2 O增幅不如NO强 .NO的排放量随着压力的增高有明显的降低 ,在氧浓度较低的条件下 ,压力越高 ,NO的降低幅度越显著 ;而压力对N2
The emphasis is laid on the experimental investigation, description of the influences of bed temperature, O2 level and operating pressure on emission of N2O in a coal-fired pressurized fluidized bed combustor (PFBC). An increase of bed temperature gives a decrease of N2O formation, but slightly affects NO formation. The result of NO emission is different from that in atmospheric fluidized bed combustor (AFBC). An increase of O2 level can give an increase of N2O and NO emissions, but the effect of O2 level on N2O emission is weaker. With the increase of operating pressure, NO emission decreases remarkably, while N2O emission increases.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2001年第3期252-256,共5页
CIESC Journal
基金
国家重点基础研究专项经费资助项目!(No.G19990 2 2 2 0 9)
关键词
增压流化床
燃烧
二氧化氮
氧化亚氮
排放特性试验
煤
污染物
Coal combustion
Energy utilization
Environmental protection
Industrial emissions
Pressure control
