Formation of Nitrogen-Containing Organic Aerosol during Combustion of High-Sulfur-Content Coal

Xiaofei Wang, Hanliu Wang, He Jing, Wei Ning Wang, Weidong Cui, Brent J. Williams, Pratim Biswas

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

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 languageEnglish (US)
Pages (from-to)14161-14168
Number of pages8
JournalEnergy and Fuels
Volume31
Issue number12
DOIs
StatePublished - Dec 21 2017
Externally publishedYes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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