XIE Jingsi, CHENG Shiqing, ZHANG Huimin, et al. EXPERIMENTAL STUDY ON NO EMISSION CHARACTERISTIC: CO-FIRING OF BIOMASS AND COAL IN O2/CO2 ATMOSPHERE[J]. Thermal power generation, 2012, 41(8): 32-36.
XIE Jingsi, CHENG Shiqing, ZHANG Huimin, et al. EXPERIMENTAL STUDY ON NO EMISSION CHARACTERISTIC: CO-FIRING OF BIOMASS AND COAL IN O2/CO2 ATMOSPHERE[J]. Thermal power generation, 2012, 41(8): 32-36.DOI:
O2/CO2气氛下生物质与煤混燃的NO排放特性研究
摘要
在水平管式试验炉上研究生物质与煤配比、燃烧气氛、O2浓度、温度对NO排放特性的影响规律。结果表明
在O2/CO2气氛下
随着生物质比例的增大
生物质混煤NO释放提前
NO排放完毕时间减少
NO的排放量降低;在试验所选取的O2浓度范围内
相同氧浓度时
O2/CO2气氛下生物质混煤NO的排放量小于O2/N2气氛下的排放量
其降低幅度约为10%~20%;随着O2浓度的增加
2种气氛下生物质混煤NO的排放量均升高;在试验所选取的温度范围内
随着温度的升高
生物质混煤NO的排放量增加。
Abstract
NO emission characteristic in O2/CO2 atmosphere was investigated in a horizontal tube furnace
by using flue gas on-line analyzer
and factors such as biomass mixing proportion
combustion environment
concentration of O2
and the temperature were considered.Results show that
in O2/CO2 atmosphere
with the increase of biomass mixing proportion
NO release happens earlier and spends less time
and its emission decreases;when at the same O2 concentration
NO emission in O2/CO2 atmosphere is always less than that in O2/N2
by about 10%-20%;with the increase of O2 concentration
NO emission increases in both atmospheres.Within the experimental temperature range
NO emission rises with the increase of temperature.