摘要
在固定床反应器中热解废橡胶和废纸,考察在不同热解终温和加热方式下NOx前驱体(HCN和NH3)的生成特性.研究结果表明,随着热解终温的升高,原料中的N转化为HCN和NH3的比例不断增加.以废橡胶为例,HCN和NH3的产率从400℃的0.5%分别增加到1 000℃的7%和9%;加热方式对HCN和NH3的产率有明显的影响.实验条件下,非等温热解时,废橡胶在所有热解温度下HCN和NH3的产率均高于等温热解时的产率.
The formation of NOx precursors （ HCN and NH3 ） during the pyrolysis of used rubber powder and waste paper under the conditions of different final pyrolysis temperatures and heating modes were studied in a fixed-bed reactor. The resuits showed that the yields of HCN and NH3 increase with increasing final pyrolysis temperatures. Take used rubber powder as an example, the yields of HCN and HN3 increased from 0. 5% at 400 ℃ to 7% and 9% , respectively, at 1 000 ℃. Heating modes had obvious effects on the yields of HCN and NH3. The yields of HCN and NH3 in non-isothermal pyrolysis were higher than those in isothermal pyrolysis at all tested temperatures.
出处
《燃烧科学与技术》
EI
CAS
CSCD
北大核心
2009年第5期471-475,共5页
Journal of Combustion Science and Technology
基金
国家自然科学基金资助项目(50776091)
广东省科技计划资助项目(20063110081)
