TY - JOUR
T1 - Real-world characterization of carbonaceous substances from industrial stationary and process source emissions
AU - Cui, Min
AU - Xu, Yuanyuan
AU - Zhang, Fan
AU - Yan, Caiqing
AU - Li, Jun
AU - Zheng, Mei
AU - Chen, Yingjun
N1 - Publisher Copyright:
© 2022 Elsevier B.V.
PY - 2023/1/1
Y1 - 2023/1/1
N2 - Carbonaceous substances in industrial emissions are harmful to human health, air quality, and climate change. Owing to the existence of various fuel types and different technological processes, the characterization of carbonaceous substances from industrial emissions varies significantly, which causes a large uncertainty in source apportionment. Therefore, nine typical industrial sources were selected and separated into two types: stationary combustion and industrial process sources. The emission factors based on different units and profiles of carbonaceous substances, including organic carbon (OC), elemental carbon (EC), subgroups of OC and EC, EPA priority polycyclic aromatic hydrocarbons (PPAHs), methyl PAHs (MPAHs), and n-alkanes emitted from nine industrial sources were obtained. The results showed that the difference in dust removal efficiency or emission of other auxiliary materials in the industrial process could cause different emission factors for carbonaceous substances. Furthermore, the emission factors of fine particulate matter (PM2.5), OC, and EC for coal-fired plant were significantly lower than those of residential coal combustion. For profiles of carbonaceous substances in different industrial sources, the relative fractions of OC subgroups emitted from stationary combustion sources were lower than those from industrial process sources, whereas the proportions of EC were higher. The source profiles of nonpolar organic matter emitted from industrial process sources were clearly different from those of industrial stationary source emissions. For the four industrial process sources, the proportion of n-alkanes was significantly higher than that of PAHs, whereas the source profiles for different industrial stationary sources were extremely different. Finally, the concentrations of carbonaceous substances obtained in this study were lower than those reported in previous studies, indicating that marked reduction results were achieved by implementing reduction measures.
AB - Carbonaceous substances in industrial emissions are harmful to human health, air quality, and climate change. Owing to the existence of various fuel types and different technological processes, the characterization of carbonaceous substances from industrial emissions varies significantly, which causes a large uncertainty in source apportionment. Therefore, nine typical industrial sources were selected and separated into two types: stationary combustion and industrial process sources. The emission factors based on different units and profiles of carbonaceous substances, including organic carbon (OC), elemental carbon (EC), subgroups of OC and EC, EPA priority polycyclic aromatic hydrocarbons (PPAHs), methyl PAHs (MPAHs), and n-alkanes emitted from nine industrial sources were obtained. The results showed that the difference in dust removal efficiency or emission of other auxiliary materials in the industrial process could cause different emission factors for carbonaceous substances. Furthermore, the emission factors of fine particulate matter (PM2.5), OC, and EC for coal-fired plant were significantly lower than those of residential coal combustion. For profiles of carbonaceous substances in different industrial sources, the relative fractions of OC subgroups emitted from stationary combustion sources were lower than those from industrial process sources, whereas the proportions of EC were higher. The source profiles of nonpolar organic matter emitted from industrial process sources were clearly different from those of industrial stationary source emissions. For the four industrial process sources, the proportion of n-alkanes was significantly higher than that of PAHs, whereas the source profiles for different industrial stationary sources were extremely different. Finally, the concentrations of carbonaceous substances obtained in this study were lower than those reported in previous studies, indicating that marked reduction results were achieved by implementing reduction measures.
KW - Carbonaceous substances
KW - Emission factors
KW - Industrial source
KW - N-alkanes
KW - PAHs
UR - https://www.scopus.com/pages/publications/85138055927
U2 - 10.1016/j.scitotenv.2022.158505
DO - 10.1016/j.scitotenv.2022.158505
M3 - 文章
C2 - 36058339
AN - SCOPUS:85138055927
SN - 0048-9697
VL - 854
JO - Science of the Total Environment
JF - Science of the Total Environment
M1 - 158505
ER -
