New process for simultaneous removal of CO2, SOX and NOX

Abstract

A method for simultaneous removal of CO₂, SO_X and NO_X from industrial flue gases through the injection of ozone diluted in nitrogen, oxygen or nitrogen/oxygen mixtures, as an oxidizing agent and with the addition of specific sequestrants, that induce the precipitation of nitrates and sulphates, is presented. This new process is related with the conventional CO₂ removal method using chemical absorption, but presents as main innovation the possibility to remove also simultaneously SO_X and NO_X.