化工学报2019，Vol.70Issue(3)：1048-1055,8.DOI:10.11949/j.issn.0438-1157.20181042
富氧富水蒸气条件下燃烧高氮燃料的NOx排放特性
NOx emission characteristics of high-N fuel combustion in atmospheres rich in O2 and steam
摘要
Abstract
The NOx emission characteristics of the nitrogen-rich fuel distiller's grains in a fluidized bed were studied under oxygen-rich and steam-rich conditions. The effect of steam on NOx emission is competitive with the influence from varying oxygen concentration in the combustion gas at the excessive air ratio of 1.2. When the oxygen concentration was below a value of about 35％, the steam addition decreased the NOx formation to lower the NOx concentration in the flue gas and also the fuel-N conversion into NOx. When oxygen concentration in the combustion gas was above the preceding critical value of about 35％, the addition of steam into the burning atmosphere resulted in higher NOx emission than the case without steam addition, showing the dominance of the enhanced oxidation with raising the O2 concentration. The NOx emission would increase first and finally decrease with raising temperature, and the higher O2 concentration in the combustion gas lowered the occurrence temperature for such a NOx decrease with raising temperature. The presence of steam in the combustion atmosphere delayed the occurrence of such a decrease so that it appeared at higher temperature.关键词
富氧/富蒸气/低NOx燃烧/白酒糟/NOx/高氮燃料Key words
oxygen-rich/steam-rich/low-NOx combustion/distilled spirits lees/NOx/high-nitrogen fuel分类
化学化工引用本文复制引用
朱传强,刘殊远,余剑,高士秋,许光文..富氧富水蒸气条件下燃烧高氮燃料的NOx排放特性[J].化工学报,2019,70(3):1048-1055,8.基金项目
政府间国际创新合作项目(2016YFE0128300) （2016YFE0128300）
