成都理工大学学报（自然科学版）Issue(5)：635-640,6.DOI:10.3969/j.issn.1671-9727.2015.05.15
焚烧烟气和大气中二噁英类气-固分布比较研究
Comparison and research on characteristics of PCDD/Fs gas-particle partition in stack gas and atmosphere
李煜婷 1王淑梅 1李羽中1
作者信息
- 1. 中国石油集团 安全环保技术研究院，北京 102206
- 折叠
摘要
Abstract
This paper studies the feature of the PCDD/Fs gas-particle partition in the stack gas and in the ambient atmosphere through measuring some samples.The measurement and modeling results illustrate that the balance of the PCDD/Fs gas-particle partition in the stack gas varies compared with that in the ambient atmosphere.In the stack gas,there is 80% gaseous PCDD/Fs and 20% particulate PCDD/Fs,while the ambient air is consist of 15% gaseous and 85% particulate.Although there is a big difference between the stack gas and the ambient air gas-particle partition,beyond 80% particulate PCDD/Fs primarily are adsorbed on D ae ≤2.5 μm particles,especially on D ae =0.2~0.5 μm particles. The two vital parameters influencing the above partition dynamic balance from the stack gas to the ambient air are the gas-particle distribution coefficient and the particulate PCDD/Fs distribution profile.What is more important,the PCDD/Fs gas-particle partition has a negative correlation with temperature,and a positive correlation with the total suspended particle concentration. The particulate PCDD/Fs distribution profile has some correlation with PM2.5 percentage in the atmosphere.关键词
二噁英类/气-固相浓度分布/Koa分配模型Key words
PCDD/Fs/gas-particle concentration partition/Koa partition model引用本文复制引用
李煜婷,王淑梅,李羽中..焚烧烟气和大气中二噁英类气-固分布比较研究[J].成都理工大学学报（自然科学版）,2015,(5):635-640,6.
