废橡胶和废纸热解过程NO_x前驱体的生成  

Formation of NOx Precursors During Pyrolysis of Rubber Powder and Waste Paper

作　　者：吴远波[1,2,3] 赵增立[1,3] 李海滨[1,3] 谭中欣[1,3] 

机构地区：[1]中国科学院广州能源研究所,广州510640 [2]中国科学院研究生院,北京100039 [3]中国科学院可再生能源与天然气水合物重点实验室,广州510640

出　　处：《燃烧科学与技术》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)

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.

关 键 词：城市固体废弃物 热解 NH3 HCN 

分 类 号：X701[环境科学与工程—环境工程]