Abstract: The characteristics of ferric oxide desulphurizer and active carbon desulphurizer and effects of various processing parameters on break through sulfur capacity are studied through experiment.The two kinds of desulphurizers are compared based on the experimental data.Experimental results indicate that EF-2 of ferric oxide desulphurizer and 3018 of carbon desulphurizer are better.3018 carbon desulphurizer is of better desulfurizing efficiency and safety,it is more suitable to be applied in field.Influencing factors of 3018 dipping modified active carbon desulphurizer is studied and was applied in Lamadian underground natural gas storage,Daqing Oilfield.The application shows that 3018 modified active carbon desulphurizer can clean content of H₂S below national standard.

Key words: ferric oxide, desulphurizer, active carbon, additive, breakthrough sulfur capacity