Orthogonal test on combined desulphurization and denitration by activated char
LI Lan-ting
Abstract：The orthogonal design method, SEM and XPS were introduced in the experiment. The influence of space velocity, react temperature, the concentrations of NO and SO_2 on removal efficiencies of NO and SO_2 were examined. The experimental results show that the competitive adsorption on activated coke contained NH_3 exists between SO_2 and NO, and SO_2 takes priority of NO on activated coke; NO is removed by selective catalytic reduction with NH_3, and SO_2 is removed by direct catalysis and producing ammonium sulphate on activated coke. The reaction temperature is the key factor to decide the ability of desulphurization and denitration on activated coke. The optimum condition is that space velocity, react temperature, the concentration of NO and SO_2 are 4 500 h~(-1), 130℃,0. 15% and 0. 10% respectively, at which the SO_2 adsorption capacity and the removal capacity of NO are 152. 82 and 57. 88 mg/g respectively.
Keywords：activated charcombined desulphurization and denitrationSO_2 adsorption capacityremoval capacity of NO
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1400-1404 )