Application of a global kinetic model on an SCR coated on Filter (SCR-F) catalyst for automotive applications

Selective Catalytic Reduction (SCR) catalysts coated on diesel particulate Filter, SCR-F, have been introduced for automotive applications in the last years due to the capability of reducing NOx and PM simultaneously below the limits imposed by emission regulations. In this context, the performance of a commercial silicon carbide Cu/zeolite SCR-F for controlling NOx emissions in an automotive diesel engine was analyzed both experimentally and numerically for different soot loading levels with the aim to investigate its catalytic properties and to build a simulation model of the aftertreament device capable of predicting NOx conversion efficiency, NH3 storage capacity and soot conversion due to passive regeneration.

[1]  M. Kubicek,et al.  Modelling of soot oxidation by NO2 in various types of diesel particulate filters , 2010 .

[2]  P. Lacava,et al.  Strategies for emission control in diesel engine to meet Euro VI , 2013 .

[3]  Maya R. Ravenscroft,et al.  Development, validation and application of a model for an SCR catalyst coated diesel particulate filter , 2012 .

[4]  E. Tronconi,et al.  Diesel NOx aftertreatment catalytic technologies: Analogies in LNT and SCR catalytic chemistry , 2010 .

[5]  J. Lemaire,et al.  Investigations of SDPF -Diesel Particle Filter with SCR Coating for HD-Applications , 2015 .

[6]  E. Tronconi,et al.  Role of Nitrate Species in the “NO2-SCR” Mechanism over a Commercial Fe-zeolite Catalyst for SCR Mobile Applications , 2009 .

[7]  Grigorios C. Koltsakis,et al.  A Modeling Study of Soot and De-NOx Reaction Phenomena in SCRF Systems , 2011 .

[8]  Thomas Körfer.  Potential of Advanced, Combined Aftertreatment Systems for Light-Duty Diesel Engines to Meet Upcoming EU and US Emission Regulation , 2013 .

[9]  B. Maletic,et al.  Interaction of NOx Reduction and Soot Oxidation in a DPF with Cu-Zeolite SCR Coating , 2015, Emission Control Science and Technology.

[10]  Zhiming Liu,et al.  Recent Advances in Catalytic DeNOX Science and Technology , 2006 .

[11]  E. Tronconi,et al.  Reactivity of NO/NO2–NH3 SCR system for diesel exhaust aftertreatment: Identification of the reaction network as a function of temperature and NO2 feed content , 2007 .

[12]  Paul Joseph Andersen,et al.  Evaluation of SCR Catalyst Technology on Diesel Particulate Filters , 2009 .

[13]  Christine Kay Lambert,et al.  Laboratory Studies and Mathematical Modeling of Urea SCR Catalyst Performance , 2007 .

[14]  Sougato Chatterjee,et al.  Development of SCR on Diesel Particulate Filter System for Heavy Duty Applications , 2011 .

[15]  E. Tronconi,et al.  Experimental study of the interaction between soot combustion and NH3-SCR reactivity over a Cu–Zeolite SDPF catalyst , 2016 .

[16]  Changhee Lee,et al.  Modeling urea-selective catalyst reduction with vanadium catalyst based on NH3 temperature programming desorption experiment , 2016 .

[17]  Enrico Tronconi,et al.  Study of a Fe–zeolite-based system as NH3-SCR catalyst for diesel exhaust aftertreatment , 2008 .

[18]  Steven J. Schmieg,et al.  The Development of Advanced 2-Way SCR/DPF Systems to Meet Future Heavy-Duty Diesel Emissions , 2011 .

[19]  Lothar Mussmann,et al.  Investigation of the selective catalytic reduction of NO by NH3 on Fe-ZSM5 monolith catalysts , 2006 .

[20]  E. Tronconi,et al.  NH3-NO/NO2 SCR for diesel exhausts after treatment: mechanism and modelling of a catalytic converter , 2007 .

[21]  M. Elsener,et al.  Reaction Pathways in the Selective Catalytic Reduction Process with NO and NO2 at Low Temperatures , 2001 .

[22]  Lothar Mussmann,et al.  Influence of NO2 on the selective catalytic reduction of NO with ammonia over Fe-ZSM5 , 2006 .

[23]  M. Elsener,et al.  Selective catalytic reduction of NO and NO2 at low temperatures , 2002 .

[24]  Kay Langeheinecke,et al.  Physico-Chemical Modeling of an Integrated SCR on DPF (SCR/DPF) System , 2012 .