Premium
Aerosol formation during coal combustion: Condensation of sulfates and chlorides on flyash
Author(s) -
Pueschel R. F.
Publication year - 1976
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl003i011p00651
Subject(s) - fly ash , sulfur , chlorine , combustion , volatilisation , coal combustion products , coal , adsorption , aerosol , condensation , particle (ecology) , mineralogy , chemical engineering , sulfate , materials science , inorganic chemistry , chemistry , metallurgy , geology , composite material , organic chemistry , meteorology , physics , oceanography , engineering
Submicron flyash particles show a preferential surface concentration of sulfur and chlorine in comparison to their matrix elements, e.g., aluminum and silicon. The relationship between concentration of surface deposited matter and inverse particle diameter suggests that S and Cl are adsorbed and oxidized on flyash particles after volatilization in the high‐temperature zone of the boiler. This leads to the formation of cloud nuclei even before a sulfur gas‐to‐particle conversion takes place.