Study on Co-Effect of K2SO4 Deposition and Low Concentration SO2 on Performances of V2O5/AC Catalysts for Low Temperature SCR
作者： Xianlong Zhang , Bowen Shi , Xueping Wu , Zhanggen Huang , Zhenyu Liu
关键词:
摘要: Simulated compounds were prepared by loading K2SO4 onto V2O5/AC catalysts. Study the effect of on V1/AC catalysts in presence low concentration SO2. Transient response techniques, TPD was carried out. The results indicated that DeNO activity decreased seriously early period operation, but deactivation gradually diminished with SO2 adsorption and then, it completely eliminated. For sulphated (saturated sulphate), their SCR free from existence gaseous loss about 10% caused found them. deposited due to decrease adsorbed activated NH3, or some acid sites.
sci-hub.st 参考文章(22)
N.Y. Topsoe, H. Topsoe, J.A. Dumesic, Vanadia/Titania Catalysts for Selective Catalytic Reduction (SCR) of Nitric-Oxide by Ammonia: I. Combined Temperature-Programmed in-Situ FTIR and On-line Mass-Spectroscopy Studies Journal of Catalysis. ,vol. 151, pp. 226- 240 ,(1995) , 10.1006/JCAT.1995.1024
Teresa Valdés-Solı́s, Gregorio Marbán, Antonio B Fuertes, Low-temperature SCR of NOx with NH3 over carbon-ceramic supported catalysts Applied Catalysis B-environmental. ,vol. 46, pp. 261- 271 ,(2003) , 10.1016/S0926-3373(03)00217-0
M. Richter, A. Trunschke, U. Bentrup, K.-W. Brzezinka, E. Schreier, M. Schneider, M.-M. Pohl, R. Fricke, Selective catalytic reduction of nitric oxide by ammonia over egg-shell MnOx/NaY composite catalysts Journal of Catalysis. ,vol. 206, pp. 98- 113 ,(2002) , 10.1006/JCAT.2001.3468
E. Tronconi, L. Lietti, P. Forzatti, S. Malloggi, Experimental and theoretical investigation of the dynamics of the SCR - DeNOx reaction Chemical Engineering Science. ,vol. 51, pp. 2965- 2970 ,(1996) , 10.1016/0009-2509(96)00182-0
L ZHANG, Y NINOMIYA, Emission of suspended PM10 from laboratory-scale coal combustion and its correlation with coal mineral properties Fuel. ,vol. 85, pp. 194- 203 ,(2006) , 10.1016/J.FUEL.2005.03.034
Luca Lietti, Gianguido Ramis, Francesco Berti, Giampietro Toledo, Davide Robba, Guido Busca, Pio Forzatti, Chemical, structural and mechanistic aspects on NOx SCR over commercial and model oxide catalysts Catalysis Today. ,vol. 42, pp. 101- 116 ,(1998) , 10.1016/S0920-5861(98)00081-9
H Kamata, The role of K2O in the selective reduction of NO with NH3 over a V2O5(WO3)/TiO2 commercial selective catalytic reduction catalyst Journal of Molecular Catalysis A-chemical. ,vol. 139, pp. 189- 198 ,(1999) , 10.1016/S1381-1169(98)00177-0
J.N. Beltramini, E.J. Churin, E.M. Traffano, J.H. Parera, Influence of Pt concentration on activity and combustion of coke on Pt/Al2O3 Applied Catalysis. ,vol. 19, pp. 203- 206 ,(1985) , 10.1016/S0166-9834(00)82681-0
J CHEN, Mechanism of poisoning of the V2O5/TiO2 catalyst for the reduction of NO by NH3 Journal of Catalysis. ,vol. 125, pp. 411- 420 ,(1990) , 10.1016/0021-9517(90)90314-A
M LAZARO, R MOLINER, J FIERRO, E GARCIABORDEJE, J PINILLA, Role of sulphates on the mechanism of NH3-SCR of NO at low temperatures over presulphated vanadium supported on carbon-coated monoliths Journal of Catalysis. ,vol. 233, pp. 166- 175 ,(2005) , 10.1016/J.JCAT.2005.04.032