The desulfurization of model gasoline by 5A molecular sieves loaded with Cu2+ was studied.Several factors which influence the desulfurization capability,including temperature,Cu2+ loading,baking temperature,as well as the ethanethiol concentration were investigated.In the range of adsorption temperature of 20℃45℃,it was found that the sorption capacity of ethanethiol on 5A molecular sieves loaded with Cu2+ increases with the temperature increasing.The desulfurization is enhanced by increasing the Cu2+ loading and the best result is obtained at the Cu2+ loading of 0.16mol/L.Baking of the sorbent can also improve the desulfurization capability,and the optimum baking temperature is 300℃.Two methods of the sorbent regeneration were compared in the experiment,the regeneration by baking is better than that by alcohol washing.
