Effect of temperature and oxygen on the formation of chlorobenzene as the indicator of PCDD/Fs

作     者：Mi Yan,Xiaodong LiTong Chen,Shengyong Lu,Jianhua Yan,Kefa Cen State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China 

作者机构：State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310027 China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2010年第22卷第10期

页      面：1637-1642页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 0713[理学-生态学] 

基　　金：supported by the National High-Tech Research and Development Program(863)of China(No. 2007AA06Z336) the Natural Science Foundation of Zhejiang Province(No.Z506214) 

主　　题：PCDD/Fs indicator chlorobenzene oxygen temperature 

摘      要：Sampling and analysis of polychlorinated dibenzo-p-dioxins and dibenzofurans （PCDD/Fs） are both time-consuming and expensive. In principle, real-time monitoring of chlorobenzene （CBz） as an indicator for PCDD/Fs could be useful to control and optimize incinerator operating conditions. To test this strategy, CBz was analyzed together with PCDD/Fs in flue gas samples collected from a hospital waste incinerator. Moreover, lab experiments were conducted to investigate the effect of temperature and oxygen on CBz formation from fly ash from the same incinerator. The experimental results demonstrate that chlorobenzene （in particular PeCBz） correlate well with PCDD/Fs, in line with previous research. The optimum temperature of CBz formation is in a range of 350 to 400℃ and CBz yield increases significantly with oxygen, in line with PCDD/Fs formation. This study is useful for confirming the de novo mechanism and defining correlations between CBz and PCDD/Fs.