Abstract
Carbonaceous aerosols, including organic carbon aerosols and black carbon aerosols, are produced by the combustion of pulverized coal even under fuel-lean conditions. These carbonaceous aerosols can be particularly hazardous to human health. In this study, the chemical compositions and formation pathways of organic aerosols emitted during the combustion of high-sulfur-content coals were investigated. It was found that nitrogen-containing organic matter contains a significant proportion of organic aerosol mass from the combustion of high-sulfur-content coals, which is not the case for organic aerosols generated during the combustion of low-sulfur-content coals. The formation of organic aerosols was significantly enhanced when higher-sulfur-content coal was burned. A strong correlation between organic aerosol mass and the sulfate concentration was observed. It is proposed that acidic sulfate particles absorb the nitrogen-containing organic volatiles produced by coal pyrolysis onto the particle phase through acid-base neutralization reactions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 14161-14168 |
| Number of pages | 8 |
| Journal | Energy and Fuels |
| Volume | 31 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 21 2017 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2017 American Chemical Society.
