摘要
选取落叶松、红松作为林木基生物质颗粒原料,选取棉秆、玉米秸秆作为秸秆基生物质颗粒原料,采用江苏东工生物质能研究院有限公司开发的生物质颗粒燃烧器为试验装置,分析了4类生物质颗粒的燃烧特性、污染物排放特性及底灰结渣特性。结果表明:水分越低、挥发分越高、灰分越低,所需点火时间越短;运行阶段林木基与秸秆基生物质颗粒能够充分燃烧,CO排放浓度达到最小;林木基与秸秆基生物质颗粒燃烧烟气中NOx排放浓度低于国家标准,NOx排放浓度与N含量基本成正比,NOx生成方式主要为燃料型反应机制;软化温度越高,结渣率越低,当软化温度达到1390℃以上时,不会发生结渣。
Larch and korean pine were used as forest-based biomass pellet,cotton and corn straw were used as straw-based biomass pellet. Burning characteristics,pollutants discharge and bottom ash slagging characteristics of four biomass particles were analyzed with the bio-mass pellet burner developed by Jiangsu Donggong Biomass Energy Research Institute Limited Company. The results show that the lower moisture,ash content and the higher volatile matter,the shorter the ignition time.The forest-based and straw-based biomass pellet can full combustion during the running stage,and concentration of CO emission is the smallest,the emission of NOx in flue gas concentration is low-er than the national standard,the NOx emission concentration is proportional to the content of N,the formation of NOx is mainly the fuel type reaction mechanism.The higher the softening temperature,the lower the slagging rate.There is no evidence of slagging when the soften-ing temperature is above 1390 ℃.
出处
《洁净煤技术》
CAS
2014年第4期83-86,共4页
Clean Coal Technology
关键词
林木基生物质颗粒
秸秆基生物质颗粒
燃烧
污染物排放
结渣
forest-based biomass pellet
straw-based biomass pellet
combustion
pollutant discharge
slagging
