Abstract
Reactions of SO2 with NH3 were studied at 45-105°C in gaseous mixture of NO, oxygen and nitrogen with and without water. The reactions proceed at reaction temperature lower than 65°C in the presence of 10% water and white powdery reaction products were uniformly deposited on the surface of a reactor and of a fiber filter. From the chemical analysis of the products dissolved in water, the main components of the products were considered to be ammonium sulfate, sulfite, hydrogen sulfate and hydrogen sulfite. The reactions may proceed in absorbed water on the surface of a reactor and a fiber filter.
