甜高粱茎秆发酵后残渣的燃烧和NOx排放特性研究  

THE RESEARCH ON THE COMBUSTION AND NO_x EMISSION CHARACTERISTICS OF SWEET SORGHUM STALK RESIDUE AFTER FERMENTATION

作　　者：付成果[1,2,3] 田宜水[1,2] 赵立欣[1,2] 孟海波[1,2] 李十中[4] 侯书林[3] 

机构地区：[1]农业部规划设计研究院,北京100125 [2]农业部农业废弃物能源化利用重点实验室,北京100125 [3]中国农业大学工学院,北京100083 [4]清华大学核能与新能源技术研究院,北京100084

出　　处：《太阳能学报》2016年第5期1295-1301,共7页Acta Energiae Solaris Sinica

基　　金：“十二五”国家科技计划(2012BAD30B02)

摘　　要：利用TG-DTG-DTA联用方法对不同升温速率下的甜高粱茎秆发酵后残渣进行燃烧特性试验,并在燃烧试验平台上开展未完全燃烧物测试,研究颗粒化利用的可行性。试验表明,甜高粱茎秆发酵后残渣燃烧主要集中在挥发分燃烧阶段;空气气氛下,升温速率在40℃/min条件下,燃烧效果最好,挥发分释放特性和综合燃烧特性指数最大。甜高粱茎秆发酵残渣的颗粒化燃烧试验中,过量空气系数在1.7和2.2之间时,NO_x最大排放浓度为348.4 mg/m^3;当过量空气系数小于1.95时,NO_x小于300 mg/m3。建议使用高效燃烧器使甜高粱酵渣颗粒在过量空气系数小于1.72的条件下燃烧,降低NO_x排放。The combustion characteristic test and the NOx of the fermentation residue of the sweet sorghum stalk as （CO） emission tests were carried out to explore the feasibility biomass fuel While the TG-DTG-DTA technology had been utilized to test the characteristics in different heating rate with air and nitrogen condition, and the unburnt pollutions tests were experimented on the fire test platform in the Key Laboratory of Energy Resource Utilization from Agricultural Residues, Ministry of Agriculture. The tests showed that volatile combustion occupies a large part of the fermentation residue＇ s whole combustion stage. Under the heating rate 40 ℃/min in air atmosphere, the best combustion efficiency happened, where the volatile release characteristic index and comprehensive combustion characteristics are the biggest in the all heating rate circumstances, when the air ration between 1.7 and 2.2, the maximum NOx emission is 345.4 mg/m^3. When the excessive air ratio below 1.95 and 1.72, the NOx emission under 300 and 200 mg/m^3 respectively.

关 键 词：甜高粱 燃烧特性 氮氧化合物 过量空气系数 

分 类 号：TK6[动力工程及工程热物理—生物能]