Emission characteristics of NOx, CO, NH3 and VOCs from gas-fired industrial boilers based on field measurements in Beijing city, China
Emission characteristics of NOx, CO, NH3 and VOCs from gas-fired industrial boilers based on field measurements in Beijing city, China
复制标题
北京市燃气工业锅炉NOx、CO、NH3和VOCs排放特征的现场测量
DOI：
10.1016/j.atmosenv.2018.04.022
复制
发表时间：
2018-07
影响因子：
5
通讯作者：
Xue Yifeng
中科院分区：
文献类型：
--
作者：
Yue Tao;Gao Xiang;Gao Jiajia;Tong Yali;Wang Kun;Zuo Penglai;Zhang Xiaoxi;Tong Li;Wang Chenlong;Xue Yifeng
在过去的十年中，由于北京的管理政策和燃煤控制，天然气的消费量逐渐增加。然而，对燃气工业锅炉气态污染物排放特性的研究，特别是考虑到燃气锅炉低氮（低NOx）改造政策的影响，还很少。在文献和现场调查的基础上，对燃气工业锅炉NOx、CO、NH3和VOCs（挥发性有机化合物）排放的现场监测以及影响气态污染物排放的关键因素进行了探讨。通过对1107台“低NOx”改造后的燃气工业锅炉进行现场实测，获得了NOx、CO、NH3和VOCs的分类排放因子（EFs）。结果表明，运行负荷和控制措施是影响气态污染物生成的两个关键因素。常压燃烧锅炉的NOx排放系数（EFNOx）和CO排放系数（EFCO）远高于燃烧室锅炉。2015年北京市燃气工业锅炉NOx、CO、NH3和VOCs的排放总量分别为10489.6t、3272.8t、196.4t和235.4t。烷烃、苯系物、含氧化合物和非活性有机物是VOCs的4种主要化学成分。在空间分布上，北京市燃气工业锅炉NOx、CO、NH3和VOCs排放主要集中在中心六城区。今后，仍需对各类燃气工业锅炉进行更详细的调查和现场试验，以实现对燃气工业锅炉大气污染物的更可靠估计。
In the past decade, due to the management policies and coal combustion controls in Beijing, the consumption of natural gas has increased gradually. Nevertheless, the research on the emission characteristics of gaseous pollutants emitted from gas-fired industrial boilers, especially considering the influence of low nitrogen (low-NOx) retrofit policy of gas boilers, is scarcely. In this study, based on literature and field investigations, onsite measurements of NOx, CO, NH3and VOCs (Volatile Organic Compounds) emissions from gas-fired industrial boilers as well as the key factors that affected the emission of gaseous pollutants were discussed. Category-specific emission factors (EFs) of NOx, CO, NH3and VOCs were obtained from the field measurements of 1107 “low-NOx” retrofitted and unabated gas-fired industrial boilers. Our results showed that operating load and control measures were the two key factors affecting the formation of gaseous pollutants. The EFs of NOx (EFNOx) and CO (EFCO) of atmospheric combustion boilers (ACBs) were much higher than the EFs of chamber combustion boilers (CCBs). The total emissions of NOx, CO, NH3and VOCs from gas-fired industrial boilers in Beijing in the year of 2015 were estimated at 10489.6 t, 3272.8 t, 196.4 t and 235.4 t, respectively. Alkanes, BTEX, oxygenated VOCs and non-reactive organic matter were the four main chemical components of VOCs. As for the spatial distributions, the emissions of NOx, CO, NH3and VOCs from gas-fired industrial boilers in Beijing were predominantly concentrated in central six urban districts. In the future, more detailed investigation and field tests for all kinds of gas-fired industrial boilers are still greatly needed to achieve more reliable estimations of atmospheric pollutants from gas-fired industrial boilers.
登录
查看更多内容
DOI：
10.1186/s12940-016-0115-2
发表时间：
2016-02-11
期刊：
Environmental health : a global access science source
影响因子：
--
作者：
Feng C;Li J;Sun W;Zhang Y;Wang Q
通讯作者：
Wang Q
影响因子：
--
作者：
T. Korpela;P. Kumpulainen;Y. Majanne;A. Häyrinen
通讯作者：
T. Korpela;P. Kumpulainen;Y. Majanne;A. Häyrinen
北京市燃煤工业锅炉一次大气污染物排放时间变化趋势及空间变化特征
影响因子：
8.9
作者：
Xue Yifeng;Tian Hezhong;Yan Jing;Zhou Zhen;Wang Junling;Nie Lei;Pan Tao;Zhou Junrui;Hua Shenbing;Wang Yong;Wu Xiaoqing
通讯作者：
Wu Xiaoqing
影响因子：
6.3
作者：
Zhao, Y.;Nielsen, C. P.;Hao, J.
通讯作者：
Hao, J.
影响因子：
8.8
作者：
Glenn C. England;Thomas P McGrath;L. Gilmer;James G Seebold;M. Lev-on;Timothy Hunt
通讯作者：
Glenn C. England;Thomas P McGrath;L. Gilmer;James G Seebold;M. Lev-on;Timothy Hunt