Scrubbing of gaseous nitrogen oxides in packed towers

Abstract

Abstract Nitrogen oxide removal efficiencies of up to 97% were obtained in tests using columns packed with Intalox saddles. These studies were conducted at atmospheric pressure with water as the scrub solution and nitrogen oxide feed concentrations of up to 10%. A mathematical model based on mass‐transfer, kinetic, and equilibrium data is presented; calculated removal efficiencies using this model agree very well with the experimental data.