Study On Preparation Of Mesoporous Materials And Catalytic Functional Materials For Steel Slag Desulfurization And Denitrificatio

In this paper,Baoshan steel slag powder,phosphoric acid and biomass activated carbon are used as raw materials to prepare the desulphurizer,the modified desulfurizer of iron water desulphurization slag,the desulphurizer of the iron water desulphurization slag and the biomass activated carbon,as well as the modified alkaline excitation of the electric furnace drum slag based on the microwave heating and steam method.Sex charcoal denitrification agent.At the same time,the effect of adsorbent on the adsorption of SO₂ and NO_x in flue gas was experimentally verified in a fixed bed flow reactor and a simulated wet flue gas desulfurization plant.The main experimental results are as follows:?1?The slag has strong alkaline and a large amount of silicon,which can be used as a potential absorbent for wet desulphurization.When the mass concentration of the micro powder liquid is 5%,the liquid gas ratio is 15.0L/m3,the desulfurization efficiency of the micro powder desulphurization agent of iron water desulfurization slag can reach 65.32%.?2?The modification of iron water desulfurization slag powder by proper phosphoric acid can remove f-CaO in hot metal desulphurization slag,which is beneficial to the formation and refinement of the micro powder of hot metal desulphurization slag.When the amount of desulphurization slag is 80 g and the amount of phosphoric acid is 3.2 mL,the modified desulphurizer for iron water desulphurization slag is obtained,and the modified desulphurizer of iron water desulphurization slag is also obtained.The mass concentration of slurry is 6% and the liquid gas ratio is15.0L/m3.The desulfurization efficiency of desulphurizing agent modified by Hot Metal Desulphurizing Slag can reach 72.05%.?3?When the entrance SO₂ content is 0.25%,the velocity is 750 H-1,the bed layer temperature is 85,the water vapor content is 9% and the oxygen content is 9%,the penetration sulfur capacity of the desulphurization slag biomass activated carbon is266.7mg/g and the desulfurization penetration time is 28 h,the penetration sulfur capacity of the activated carbon is 305.9 mg/g and the desulphurization time is 34 h,and the iron water desulphurization slag raw material is produced.The desulfurization efficiency of activated carbon can reach the desulfurization effect of activated carbon87.2%⁸2.3%.?4?When the content of the slag powder of the electric furnace roller slag is 25%,the preparation of activated charcoal with an electric furnace drum slag modified alkali activated carbon with a particle size of about 1 cm has a good adsorption NO effect,that is,the penetration time of the adsorbed NO is 321 min,and the adsorption NO effect of the activated charcoal stimulated by the slag modified alkali of the electric furnace drum can reach the adsorption NO effect of 96.1%.