EFFECTIVENESS OF NO_x REMOVAL FROM GAS VIA PREOXIDATION OF NO WITH OZONE AND ABSORPTION IN ALKALINE SOLUTIONS

摘要

The process of NO removal from the carrier gas (air) applying preoxidation of NO with ozone and absorption of higher oxides in alkaline aqueous solutions was studied in a laboratory apparatus. The molar ratio of O3/NO was in the range of 0.5-1.5. The main purpose of the experiments was to determine the absorption performance of NO oxidation products in aqueous solutions of NaOH, KOH, Ca(OH)2, CaCO3 and in water. Additionally, the influence of the initial concentration of NO in the carrier gas and the NaOH concentration in a solution on the effectiveness of NO_x removal via the preoxidation-absor-ption process was studied.