a Department of Risk Assessment and Environment Protection, Institute of Atomic Energy, 05-400 Otwock- wierk. Poland
b Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warsaw, Poland
In this research from Poland is revealed another, potentially efficient, technique for capturing Sulfur compounds in the flue gas of coal utilization facilities.
An excerpt:
"Abstract
Flue gases with high SO2 concentration are emitted from different industrial processes, e.g. combustion of coal with high sulfur content, copper smelting and sintering plant. The application of the electron beam process for SO22 removal efficiency was obtained when the temperature and humidity of irradiated flue gases and ammonia stoichiometry were properly adjusted. The synergistic effect of high SO2x removal was observed. The collected by-product was the mixture of (NH4)2 SO4 and NH4NO3. The content of heavy metals in the by-product was many times lower than the values acceptable for commercial fertilizer." removal from such flue gases was investigated. A parametric study was carried out to determine the removal efficiency as a function of temperature and humidity of irradiated gases, dose and ammonia stoichiometry. At the dose 11.5 kGy 95% SO concentration on NO
Note that this process generates a commercial product - fertilizer - that is of higher quality, in terms of heavy metal content, than the current product standards.