caa a22 4500 378907816 CHVBK 20180305123534.0 cr unu---uuuuu 161128e20040801xx s 000 0 eng 10.1524/zpch.218.8.1011.35984 doi (NATIONALLICENCE)gruyter-10.1524/zpch.218.8.1011.35984 Modelling of Selective NOx Reduction on Ce/In-Promoted Sulfated Zirconia Catalysts [Elektronische Daten] [E. Karoline Schädlich, Wladimir Suprun, H. Kuno Schädlich, Helmut Papp] Various pseudohomogeneous models for the selective catalytic reduction of NOx by methane were developed by considering reaction schemes and kinetic mechanism. The models were applied to predict the performance of Ce/In-promoted sulfated zirconia catalysts in a wide temperature range from 300 to 700°C in a fixed bed reactor assuming plug-flow. A nonlinear kinetic model fits the experimental data better than a simple linear model. The mass balance differential equations were solved numerically. The model parameters were estimated by the Simplex-method of Nelder-Mead with a fourth order Runge-Kutta-Merson-method. The finally chosen model is better suited for the prediction of the In-free catalysts than for the mixed oxide catalysts or the Ce-free catalysts. The model suggests that CO formed in the process plays no role in the reduction of NO by CH4. This was confirmed by experimental evidence. The investigated Ce/In zirconia system was better suited for NO reduction by CH4 than those published previously. © 2004 Oldenbourg Wissenschaftsverlag GmbH Thermodynamics & statistical physics nationallicence Laboratory techniques, experiments nationallicence Physical chemistry nationallicence Schädlich E. Karoline aut Suprun Wladimir aut Schädlich H. Kuno aut Papp Helmut aut Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics Oldenbourg Wissenschaftsverlag GmbH 218/8/2004(2004-08-01), 1011-1025 0942-9352 218:8/2004<1011 2004 218 zpch https://doi.org/10.1524/zpch.218.8.1011.35984 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zpch.218.8.1011.35984 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schädlich E. Karoline aut NATIONALLICENCE 700 1- Suprun Wladimir aut NATIONALLICENCE 700 1- Schädlich H. Kuno aut NATIONALLICENCE 700 1- Papp Helmut aut NATIONALLICENCE 773 0- Zeitschrift für Physikalische Chemie/International journal of research in physical chemistry and chemical physics Oldenbourg Wissenschaftsverlag GmbH 218/8/2004(2004-08-01), 1011-1025 0942-9352 218:8/2004<1011 2004 218 zpch CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter