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10th CLEERS Workshop

2007-05-01 - 2007-05-03

Emphasized topic areas:

  • Diesel Particle Filters
  • Selective Catalytic Reduction
  • Lean NOx Traps
  • Oxidation and Reformer Catalysts
  • Emissions Control Systems Integration


  • Provide technical updates on the latest developments for these technologies and corresponding simulation tools
  • Enhance emissions control collaboration among industry, government and universities
  • Improve and update recognition of key research priorities


CLEERS workshops are intended as relatively 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 10th workshop in a series sponsored by the DOE Office of FreedomCAR and 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 Workshop 10

The 10th CLEERS workshop will be hosted by University of Michigan at their Dearborn Campus in Detroit from May 1st through 3rd, 2007. Diesel particulate filters (DPF), selective catalytic reduction (SCR), lean NOx traps (LNTs), oxidation and reformer catalysts 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.

It is expected that the workshop presentations will include invited presentations by internationally prominent researchers. 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 – George Muntean, Pacific Northwest National Laboratory, email George.Muntean@pnl.gov, phone 509-375-2224 or Chris Rutland, University of Wisconsin, email rutland@engr.wisc.edu, phone 608-262-5853
  • SCR technology – Darrell Herling, Pacific Northwest National Laboratory, email darrell.herling@pnl.gov, phone 509-375-6905 or Joe Bonadies, Delphi, email joseph.v.bonadies@delphi.com, phone 810-257-2074
  • LNT technology, Oxidation and Reformer Catalysts, and system integration – Stuart Daw, Oak Ridge National Laboratory, email dawcs@ornl.gov, phone 865-946-1341 or Dick Blint, General Motors, email richard.j.blint@gm.com, phone 586-596-4291

Tuesday, May 1st, 2007

7:30 a.m.Registration/Continental Breakfast
8:30 a.m.Welcome and Introduction
9:00 a.m.Invited Talk: 4-way Catalyst Modeling in Wall-Flow and Deep-bed SubstratesGrigorios Koltsakis, Aristotle University Thessaloniki
10:00 a.m.Coffee Break
10:15 a.m. Microreactor Investigations of the Oxidation of Diesel and Model SootsAndrea Strzelec, ORNL (UW-ERC)
10:45 a.m. Diesel Exhaust Particulate Measurements for Conventional and Low-Temperature CombustionDavid Foster, UW
11:15 a.m. EGR Catalyst Effects on EGR Cooler DepositsJohn Hoard, Ford Motor Company
11:45 a.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
1:00 p.m.Invited Talk: Simulating Integrated Engine-Emissions-DOC-DPF PerformanceChris Rutland, University of Wisconsin - Madison
2:00 p.m. System Level Modeling of Lean Exhaust Aftertreatment DevicesSyed Wahiduzzaman, Gamma Technologies Inc.
2:45 p.m.Coffee Break
3:00 p.m.Multifunctional Wall-Flow Monoliths: Advanced Coating Technologies and Efficient ComputationsSouzana Lorentzou, APT Lab. CPERI/CERTH
3:45 p.m.Micro-scale Simulations of Diesel Soot OxidationMark Stewart, PNNL
4:15 p.m.Invited Talk: Utilization of PSAT for Integrated Engine-Aftertreatment Performance SimulationsAymeric Rousseau, Argonne National Laboratory
5:15 p.m.DPF DurabilityReggie Zhan, Southwest Research Institute
5:45 p.m.End of first day sessions

Wednesday, May 2nd, 2007

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:15 a.m.Paths to Four-way Diesel Emissions SystemsJonathan Male, Pacific Northwest National Laboratory
8:45 a.m. Invited Talk: Modeling Needs for SIDI Lean NOx Aftertreatment SystemsNorman Brinkman, General Motors R&D
9:45 a.m. Fundamental Studies of NOx Adsorber Materials at PNNLCharles H. F. Peden, Pacific Northwest National Laboratory
10:30 a.m.Coffee Break
10:45 a.m. DRIFTS Studies of LNT KineticsJosh Pihl, Oak Ridge National Laboratory
11:15 a.m. Mechanism Development for the Simulation of LNT Lean/Rich CyclingRichard Larson, Sandia National Laboratories
11:45 a.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
1:00 p.m.Effect of Length on LNT PerformanceVitaly Prikhodko, University Of Tennessee/Oak Ridge National Laboratory
1:30 p.m. Rapid Thermal Aging of Lean NOx TrapsTodd Toops, ORNL (UW-ERC)
2:00 p.m. Bench Reactor LNT Sulfation StudiesBill Partridge, ORNL (UW-ERC)
2:30 p.m. The Advantages of Cavity Ring-Down Spectroscopy in the Analysis of Diesel Engine EmissionsKathleen Hartnett, Picarro, Inc.
3:00 p.m.Coffee Break
3:15 p.m. Comparison of LNT catalyst performance with in-cylinder regeneration techniquesJim Parks, Oak Ridge National Laboratory
3:45 p.m. The Effect of CeO2 on the Performance of Lean NOx Trap CatalystsMark Crocker, University of Kentucky
4:15 p.m. Effectiveness of Desulfation Protocols on Dynamometer Aged LNT-SCR SystemsRachel Snow, Ford Motor Company
4:45 p.m. Discovery of New NOx Reduction, Hydrocarbon SCR Catalysts using High Throughput TechnologiesRichard Blint, GM R & D
5:15 p.m. The Effects of Regeneration Conditions on NOX Release from, and Reduction to N2 on, NOX Storage/Reduction CatalystsWilliam Epling, University of Waterloo
5:45 p.m.End of second day sessions
6:30 p.m.No-Host Dinner

Thursday, May 3rd, 2007

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:45 a.m. Invited Talk: Urea SCR- The Volvo WayAnn Grant, Volvo Technology AB
9:30 a.m.Performance Characterization of Cu/Zeolite and Fe/Zeolite Catalysts for the SCR of NOxGiovanni Cavataio, Ford Motor Company
10:00 a.m.Coffee Break
10:15 a.m. Diesel Aftertreatment System Analyses with DOC and SCR ModelsSanthoji Katare, Ford Motor Company
10:45 a.m. Invited Talk: Catalytic mechanism, detailed kinetics and converter model for NH3-SCR of NOx emissions from vehicleEnrico Tronconi, Politecnico di Milano
11:45 a.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
12:45 p.m.Choice of Urea-Spray Models in CFD Simulations of Urea-SCR SystemsAndreas Lundstrom, Chalmers University of Technology
1:15 p.m.A Numerical Investigation of the Performance Analysis of Ammonia based SCR Aftertreatment SystemsTariq Shamim, University of Michigan - Dearborn
1:45 p.m.NH3 SCR for Hydrogen IC EnginesKalyana Chakravarthy, ORNL
2:15 p.m. Varied Ammonia:NOx Ratio and Ammonia Slip Catalysts for Urea SCR SystemsJames Girard, Ford Motor Company
2:45 p.m. Application of a NH3 SCR Global Reaction Mechanism to Reactor Experiments on Zeolite CatalystsAshok Gopinath, General Motors R&D
3:15 p.m. Progress in DOC, DPF and SCR SimulationRoland Wanker, AVL
3:00 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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