Ion Transport via Electrosorption

Abstract

The aim of this study was the metal ion removal of the gas scrubber effluents of an olefins plant by Electro Swing Adsorption. This electrochemical method has an advantage it does not use hazardous chemicals and it does not produce pollution. This paper is a report about preparation of nickel electrodes with high specific surface area, estimating the electrochemically accessible surface area, and experimentally demonstrating the existence of the double-layer, determination of the capacity of the electric double-layer, demonstrating the ion transport by electrosorption. Moreover an attempt is made at the determination of the relative role of the physical adsorption and the electrosorption in the ion transport. Measurements were carried out on an automated electro swing adsorption apparatus. Finally optimal operating parameters were determined by maximizing the removal efficiency.