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질소산화물 제거를 위한 V₂O_5/TiO₂촉매 코팅된 다공성 실리카 필터의 제조 및 특성
한요섭,고재철,박영구,김승호,박재구 三陟大學校 2005 論文集 Vol.38 No.-
The prepared porous support from silica coated with TiO₂ and V₂O_(5) catalysts were studied by selective catalytic reduction of NOx with NH₃ The effects of V₂O_(5) loading, reaction temperature, space velocity and filter-type(disk and sphere) on the characteristics of NOx reduction with NH₃ were mainly investigated. At space velocity 6000h^(-1), reaction temp rature 350℃, V₂O_(5) loading 6.Owt.% and oxygen content 5%, the NOx reduction was higher to about 91%. The efficiency of porous silica on V₂O_(5)/TiO₂ catalytic disk-filter was higher than that of the V₂O_(5)/TiO₂ catalytic sphere-filter. It has been experimentally observed that the V₂O_(5)/TiO₂ catalytic disk-filter has strong resistance of gas flow.
B-44 : Removal Characterisitics of NOx Using Coated V2O5-TiO2 Catalyst on Ceramic Filters in NH3-SCR
한요섭,김현중,박재구 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.2
Ceramic foams prepared from silica-clay were coated with TiO2 and V2O5 catalysts for selective catalytic reduction of NOx with NH3. The effects of V2O5 loading, reaction temperature, space velocity, and oxygen content on NOx reduction with NH3 were mainly investigated. Also, the NOx reduction characteristics of V2O5 and V2O5-TiO2 filters were compared under the existence of sulfur dioxide. From the results, the optimal NOx reduction with the maximum reduction efficiency of 91% could be performed under the condition with V2O5 loading 6.0wt.%, reaction temperature 350℃, space velocity 6000h-1, and oxygen content 5%. And, the V2O5-TiO2 filters have shown more excellent NOx reduction efficiency and stronger resistance against sulfur dioxide than the V2O5 filters.