摘要
铁矿石烧结是我国重要的二噁英类(PCDD/Fs)排放源之一.本文总结了烧结过程PCDD/Fs的生成机制,以及典型烧结烟气的PCDD/Fs排放特征.针对影响PCDD/Fs生成的关键因素进行了分析,探讨了原料组成中关键元素的影响,以及温度、时间和氧气含量等条件的影响,进而对PCDD/Fs的减排技术等方面进行了讨论.最后本文还对部分发达国家和我国的铁矿石烧结行业PCDD/Fs排放现状进行了分析和展望.可为我国铁矿石烧结行业PCDD/Fs的管理和减排提供参考.
Iron ore sintering is one of the important emission sources for PCDD /Fs. This paper summarized formation mechanisms of PCDD /Fs in sintering process and the emission profile of PCDD /Fs in typical sintering stack gas. Key influencing factors of PCDD /Fs formation,including temperature,time,oxygen concentration and other conditions in raw material composition were analyzed. Reduction technologies of PCDD /Fs emission were also suggested in this paper. Finally,it provided analysis and outlook on the current emission of PCDD /Fs from iron ore sintering industry in China and several developed countries. It is aimed to provide reference for the management and reduction of emission of PCDD /Fs in the iron ore sintering industry in China.
出处
《环境化学》
CAS
CSCD
北大核心
2014年第10期1723-1732,共10页
Environmental Chemistry
基金
国家重点基础研究发展计划(2011CB201500)
中国科学院战略性先导科技专项(XDB14000000)
国家自然科学基金(21321004)资助
关键词
二噁英类
形成机理
影响因素
阻滞
减排
PCDD /Fs
formation mechanism
factors
inhibition
reduction
