LAUSR

Abstract In current situation numerous technologies have been applied for simultaneous removal of SO 2 and NO in coal fired power plant stack gases, one of the major SO 2 and NO emission sources. But few researches had been done concentrating in environmental aspect for simultaneous SO 2 and NO absorption. No established technology was opted for removal of these toxic gases suitable for coal fired thermal power plants. This paper suggests a proposed feasible method for instantaneous removal of SO 2 and NO by NH 3 /NaClO scrubbing. The main intention for the development of this process is to produce valuable products such as ammonium sulphite, ammonium nitrite, ammonium sulphate and ammonium nitrate which can be utilized as fertilizer for plants in agricultural field. Here NaClO can be utilized as oxidative additive in the aqueous absorbent blend of NH 3 /NaClO to make the process of simultaneous removal of SO 2 and NO by wet scrubbing feasible. The experimental parameters such as reaction temperature, mole ratio of NH 3 to NaClO, reaction time, SO 2 concentration, NO concentration, etc. were studied in this process. The optimal operating parameters were determined. The detailed process description has been explained in this paper.