REMOVAL OF ATMOSPHERIC POLLUTANTS FROM GAS, RELATED APPARATUS, PROCESSES AND USES THEREOF

摘要

One aspect of the invention relates to a method comprising a single-stage conversion of NO and/or NO2 in a first stream to one or more mineral acids and/or salts thereof by reacting with nonionic gas phase chlorine dioxide ((ClO2)0). Another aspect of the invention relates to a method comprising first adjusting the NO and NO2 concentrations in a first stream to a molar ratio of about 1:1, and then reacting with an aqueous metal hydroxide solution (MOH). Another aspect of the invention relates to an apparatus that can be used to carry out the methods disclosed herein. The methods disclosed herein are unexpectedly efficient and cost effective, and can be applied to a stream comprising high concentration and large volume of NO and/or NO2.