Removal of Gaseous Ammonia and Methylamine Using Ozone
ABSTRACT REDUCTION of ammonia (NH3) and methylamine (CH3NH2) concentration in specially prepared atmospheres using ozone has been demonstrated. The contact time for ozone exposures is somewhat lengthy (max. 2 hr) for the concentrations studied. Methylamine is more resist-ant to ozone oxidation than ammonia, probably due to the protective nature of the attached methyl group to the amine. Stoichiometry developed to predict ozone doses based on odorant (NH3 and CH3NH2) concentration was not verified. In all cases, more ozone was needed for effective oxida-tion than was calculated by the stoichiometry.