Orthogonal Experimental Study on Preparation Conditions of V2O5/TiO2 Catalysts for the SCR of NO with NH3

Bing Nan Ren; Qiao Wen Yang; Li Na Lu

doi:10.4028/www.scientific.net/MSF.675-677.1031

Paper Titles

Viscosity of Sn-Cu Solders Investigated by Molecular Dynamics
p.1011

First-Principles Study of Adsorption Properties of NO₂ on Boron-Doped Silicon Carbide Nanotube
p.1015

Comparative Temperature Field Analysis of MgO Single Crystal Furnace Using Finite Element and Fuzzy Methods
p.1019

Synthesis and Performance of Perovskite YMn_xFe_1-xO₃ Photocatalyst
p.1025

Orthogonal Experimental Study on Preparation Conditions of V₂O₅/TiO₂ Catalysts for the SCR of NO with NH₃
p.1031

Application of Hydrophobic Silica/Fiber Composite Aerogels in Organic Absorption
p.1035

Green Synthesis of Nano-Size Silver Particles Colloidal Sol
p.1041

Synergy Effect of Ce/N Co-Doping on Anatase TiO₂ Photocatalysts from First Principles Calculation
p.1045

Variation Mechanism of Aspiration Pressure at the Tip of Metal Delivery Tube in Supersonic Atomization
p.1049

HomeMaterials Science ForumMaterials Science Forum Vols. 675-677Orthogonal Experimental Study on Preparation...

Orthogonal Experimental Study on Preparation Conditions of V₂O₅/TiO₂ Catalysts for the SCR of NO with NH₃

Abstract:

The optimal preparation condition of V2O5/TiO2 catalyst was investigated by the orthogonal experimental method. Five factors were chosen including A(molar ratio of NH4VO3 to oxalic acid),B(aging time of solution),C(active component content),D(impregnation temperature) and E(impregnation time). Every factor had four levels. The levels of A were1:2, 1:1, 3:2 and 2:1. The levels of B were 12h, 14h, 16h and 18h. The levels of C were 2%, 4%, 6% and 8%. The levels of D were 45°C, 55°C, 65°C, 75°C. The levels of E were 2h, 3h, 4h and 5h.The orthogonal experiment table was L16(45). Then the de-NOx rate of V2O5/TiO2 catalysts was tested in SCR catalytic reactor. The results showed that the influence of chosen factors decreased in the following order: C> B> E> D> A. The optimal plan of preparation experiments, obtained from the orthogonal experiment, is C3B1E3D3A4. So the optimal condition of preparation experiments are that active component content is 6%，aging time of solution is 12h，impregnation time is 4h，impregnation temperature is 65°C，molar ratio of ammonium metavanadate and oxalic acid is 2:1.