SO2 REMOVAL FROM FLUE GAS USING GAS-SOLID TREATMENT PROCESS

Z.R. Yelebe^*, R.J. Samuel and B. Z. Yelebe

Department of Chemical/Petroleum Engineering,

Niger Delta University, Wilberforce Island, Bayelsa State, Nigeria.

E-mail: yelebezr@gmail.com

Abstract: This paper describes the design of wet flue gas desulphurization (FGD) spray tower system for the removal of sulphur dioxide (SO₂) from flue gas. The objective is the design of the scrubber system; the scrubber thickness, diameter of pipe network, rate of energy gained, and SO₂ removal efficiency. The SO₂ removal efficiency depends on the concentration of the slurries, the particle size of the sorbents. The paper also show that the scrubber system is simple in construction and requires less initial cost as compared to the other conventional systems. The process produces valuable by-products, gypsum, which is used to manufacture wallboard. The production of saleable by-product such as gypsum minimizes waste management difficulties after operation. Magnesium hydroxide (MgOH) has been demonstrated to control emission of sulphuric acid mist and reduce visible opacity. The process obtains high SO₂ remove efficiency of 99% which is the major hallmark of the process. In addition, this process can produce gypsum of 99% purity and obtain reagent utilization of 99.9%. Thus, these advantages will serve as basis for the selection of flue gas treatment in coal-fired power plants.