.gamma.-Al2O3 sorbent impregnated with alkali salt and CuO

Abstract

The present invention relates to a -Al2O3 sorbent impregnated with alkali salt and CuO, which has a superior SO2 sorption capacity and a high regeneration conversion rate. A -Al2O3 sorbent of the present invention is impregnated with alkali salt and copper oxide, whose alkali salt and copper oxide(CuO) contents are 1 to 10 wt. % and 5 to 20 wt. % against 100 wt. % -Al2O3 carrier, respectively. The -Al2O3 sorbent of the invention has a superior SO2 sorption capacity and a high regeneration conversion rate, which facilitates efficient removal of SO2 by the conventional dry method.