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2011 CLEERS Workshop

2011-04-19 - 2011-04-21

Emphasized topic areas:

  • Diesel Particle Filters
  • Selective Catalytic Reduction
  • Lean NOx Traps
  • Oxidation and Reformer Catalysts
  • Hydrocarbon Traps
  • Emissions Control Systems Integration
  • On-Board Diagnostics


  • Share updates and experience on the latest developments for these technologies and corresponding simulation tools
  • Enhance emissions control collaboration among industry, government and universities
  • Update recognition of key research priorities


CLEERS workshops are intended as informal but tightly focused forums for sharing recent research results on understanding and simulating lean exhaust emissions control. Joint participation by researchers in government, universities, and industry is encouraged. This is the 14th workshop in a series sponsored by the DOE Office of Vehicle Technologies and the DOE Diesel Crosscut Team. The results of the workshop discussions will be documented for the DOE Office of Transportation Technology (OTT) for consideration in improving R&D priorities and technical focus in DOE-supported transportation programs.

About the 2011 Workshop

The 2011 CLEERS workshop will be hosted by University of Michigan at their Dearborn Campus in Detroit from April 19th through 21st, 2011. Diesel particulate filters (DPF), selective catalytic reduction (SCR), lean NOx traps (LNTs), oxidation and reformer catalysts, hydrocarbon traps and emissions control systems integration will be the major discussion themes. As with the previous CLEERS workshops, this will be a public meeting open to all who are interested in the most recent developments in understanding and simulating the performance of these devices under realistic conditions.

The workshop agenda will include invited presentations by internationally prominent researchers and an invited panel of experts in integrated vehicle systems simulation. Contributed presentations of 20-30 minutes are also invited from interested parties. Those who are interested in making such presentations should contact one of the following topical coordinators:

  • DPF technology – Mark Stewart, Pacific Northwest National Laboratory, email Mark.Stewart@pnl.gov, phone 509-375-2179 or Chris Rutland, University of Wisconsin, email rutland@engr.wisc.edu, phone 608-262-5853
  • SCR technology – Jong Lee, Pacific Northwest National Laboratory, email jong.lee@pnl.gov, phone 509-371-6265 or John Kirwan, Delphi, email john.e.kirwan@delphi.com, phone 248-836-1879
  • LNT technology, oxidation and reformer catalysts, hydrocarbon traps and system integration – Stuart Daw, Oak Ridge National Laboratory, email dawcs@ornl.gov, phone 865-946-1341 or Wei Li, General Motors, email wei.l.li@gm.com, phone 586-947-2262

Tuesday, April 19th, 2011

7:30 a.mRegistration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:15 a.m.Invited Talk: Urea/SCR Technology for Removing NOx from Diesel EngineIn-Sik Nam, POSTECH
9:15 a.m. SCR Deactivation Kinetics for Model-Based Control and Accelerated Aging Applications - Final UpdateGordon Bartley, Southwest Research Institute
9:45 a.m. Development of Cu SCR Model using CLEERS Transient SCR Reactor ProtocolMaruthi Devarakonda, Pacific Northwest National Laboratory
10:15 a.m.Coffee Break
10:30 a.m. Storage of NH3 and H2O over Fe-zeolite based SCR catalystsStavros Skarlis, IFP Energies Nouvelles
11:00 a.m. Simulating UWS Droplet Phase Change and Heat TransferMario F. Trujillo, UW-Madison
11:30 a.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
12:30 p.m.Invited Talk: Spatially-Resolving the SCR ReactionWilliam Epling, University of Waterloo
1:30 p.m. Remaining Challenges to the Commercialization of Hydrocarbon Selective ReductionRobbie Burch, Queen's University Belfast
2:00 p.m. A novel approach to the modeling of dual-layer ammonia slip catalystsMassimo Colombo, Laboratory of Applied Themodynamics, Aristotle University
2:30 p.m. The Effects of Propylene on Key SCR ReactionsJinyong Luo, University of Waterloo
3:00 p.m.Coffee Break
3:15 p.m. Impact of biodiesel-based Na on the selective catalytic reduction (SCR) of NOx using Cu-zeoliteTodd Toops, ORNL
3:45 p.m. Phosphorous Aging ModelPraveen Chavannavar, Caterpillar Inc.
4:15 p.m. Cu-SCR Catalyst Aging W.R.T. Transient Distributed PerformanceWilliam Partridge, ORNL
4:45 p.m. Self-Learning Identification and Stochastic Control for Autonomous Intelligent Propulsion SystemsAndreas Malikopoulos, Oak Ridge National Laboratory
5:15 p.m.End of first day sessions

Wednesday, April 20th, 2011

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:15a.m.Invited Talk: System Simulation of Modern Powertrain Concepts - From an Industrial PerspectiveBernd Krutzsch, Daimler AG
9:15 a.m.Simulation of NH3-Slip CatalystsMartin Votsmeier, Umicore
9:45 a.m.Hydrocarbon fouling of Cu- and Fe-zeolite SCR catalysts in conventional and advanced diesel combustion modesVitaly Prikhodko, Oak Ridge National Laboratory
10:15 a.m.Coffee Break
10:30 a.m.Development and validation of model for blended 2-way DPF/SCRSoo-Youl Park, University of Wisconsin, Madison
11:00 a.m.Catalysed Diesel particulate filter: study of the reactivity of soot arising from biofuel combustionNora Lamharess, IFP Energies nouvelles -Lyon
11:30 a.m.Particle Emissions Reduction by In-Cylinder Blending of Gasoline and Diesel FuelTeresa Barone, Oak Ridge National Laboratory
12:00 noonOn-Site Working Lunch (with discussions and Q&A on morning presentations)
1:00 p.m.Kinetic Modelling of Soot Oxidation: The Effect of Soot StructureKirsten Leistner, University of Paris Pierre et Marie Curie / IFP
1:30 p.m.Advances in Multifunctional Filtration-Reactor SystemsAthanasios Konstandopoulos, APT Lab, CPERI/CERTH
2:00 p.m.Impact of Rail Pressure on Soot Morphology and NanostructurePeng Ye, The Pennsylvania State University
2:30 p.m.Spatio-temporal Features of Periodic Oxidation of H2 and CO On Pt/CeO2/Al2O3Mike Harold, University of Houston
3:00 p.m.Coffee Break
3:15 p.m.Panel Discussion: Estimating kinetic parameters for aftertreatment components, lab versus dynamometer measurementsBernd Krutzsch, Daimler
Karthik Ramanathan, GM
Lars Henrichsen, Cummins
Jeff Hepburn, Ford
5:15 p.m.End of second day sessions
6:30 p.m.No-Host Dinner: Pizza Papalis, 22022 Michigan Ave., Dearborn, MI
Stuart Daw will review results from the CLEERS 2011 Priority Summary

Thursday, April 21st, 2011

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:15 a.m.Special Announcement: Preview of BMW Series 1 GDI Data in CLEERS DatabaseVitaly Prikhodko, Oak Ridge National Laboratory
8:30 a.m.Invited Talk: Modeling the DOCRichard Blint, N2Kinetics Research, LLC
9:30 a.m.Kinetic modeling study of CO oxidation in the presence of H2 over Pt/Rh/Al2O3 catalystsNikola Rankovic, IFP Energies Nouvelles -Lyon
10:00 a.m.The beneficial effect of SO2 on platinum migration and NO oxidation over diesel oxidation catalystsLouise Olsson, KCK, Chalmers
10:30 a.m.Coffee Break
10:45 a.m.NOx storage-reduction catalysts: Similarities and differences between Ba and KCharles Peden, Pacific Northwest National Laboratory
11:15 a.m.Comprehensive Microkinetic Modeling of LNT ChemistryRichard Larson, Sandia National Laboratories
11:45 a.m.Correlation between LNT NH3 and N2O selectivities under fast cycling conditionsJae-Soon Choi, Oak Ridge National Laboratory
12:15 p.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
1:15 p.m.N2O Formation During the Regeneration of Lean NOx TrapsPetr Koci, University of Chemistry and Technology, Prague
1:45 p.m.Preliminary Evaluation of Perovskite LNT CatalystCrystle Constantinou, University of Waterloo
2:15 p.m.Non-NH3 SCR perrformance in an LNT/SCR lean exhaust SystemMark Dearth, Ford-RIC
2:45 p.m.End of third day sessions


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University Of Michigan – Deaborn
4901 Evergreen Road
Dearborn, MI 48128 United States
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