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2010 CLEERS Workshop

2010-04-20 - 2010-04-22

Emphasized topic areas:

  • Diesel Particle Filters
  • Selective Catalytic Reduction
  • Lean NOx Traps
  • Oxidation and Reformer Catalysts
  • 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 13th 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 2010 Workshop

The 2010 CLEERS workshop will be hosted by University of Michigan at their Dearborn Campus in Detroit from April 20th through 22nd, 2010. 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.

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 – Darrell Herling, Pacific Northwest National Laboratory, email Darrell.Herling@pnl.gov, phone 509-375-6905 or John Kirwan, Delphi, email john.e.kirwan@delphi.com, phone 248-836-1879
  • LNT technology, Oxidation and Reformer Catalysts, 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 20th, 2010

7:30 a.mRegistration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:15 a.m.Invited Talk: Synthetic gas bench study of a 4-way catalytic converter: Catalytic oxidation, NOx storage/reductionPatrick Da Costa, Université Pierre et Marie Curie
9:15 a.m. SCR Deactivation Kinetics for Control, Aging and OBD Applications - Part 1Gordon Bartley, Southwest Research Institute
9:45 a.m. SCR Deactivation Kinetics for Control, Aging and OBD Applications - Part 2Gordon Bartley, Southwest Research Institute
10:15 a.m.Coffee Break
10:30 a.m. Spatially Resolving NH3-Selective Catalytic Reduction ReactionsWilliam Epling, University of Waterloo
11:00 a.m. The use of microcalorimetry for measuring the heat of adsorption for NH3, NO2 and NO on Cu-BetaLouise Olsson, Chalmers University
11:30 a.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
12:30 p.m.Invited Talk: Total System Simulation of Modern Powertrain Concepts - From an Industrial PerspectiveRuediger Steiner, Daimler AG
1:30 p.m. Modeling Competitive Adsorption in Urea-SCR Catalysts for Enhanced Low Temperature NOx ControlJong Lee, Pacific Northwest National Laboratory
2:00 p.m. Development of a CLEERS transient experimental protocol for urea/ammonia SCRJosh Pihl, Oak Ridge National Laboratory
2:30 p.m. Kinetics Studies of NOx Reduction on Iron-Based Zeolite Monolith CatalystsMichael Harold, University of Houston
3:00 p.m.Coffee Break
3:15 p.m. Fe-based SCR model development and applicationsJianguo Dai, Johnson Matthey
3:45 p.m. Spatial Temperature and Concentration Profile Chanages Following Heterogeneous Thermal Aging in a Model Diesel Oxidation CatalystApril Russell, University of Waterloo
4:15 p.m. Advanced Sensors for Next Generation Diesel Particulate Filter SystemsAlexander Sappok, Filter Sensing Technologies, Inc.
4:45 p.m. Effect of H2O on NH3 Storage in an Fe-SCR catalystMichael Smith, University of Michigan
5:15 p.m.End of first day sessions
6:00 p.m.No-Host Dinner at Mexican Fiesta Restaurant

Wednesday, April 21st, 2010

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:15a.m.Invited Talk: Investigations of Soot Nanostructure and ReactivityAndre Boehman, Penn State University
9:15 a.m.Experimental procedures for efficient after-treatment model calibrationMaria Kalogirou, Exothermia
9:45 a.m.Hot zones formation in Diesel Particulate Filters (DPFs)Dan Luss, Univesity of Houston
10:15 a.m.Coffee Break
10:30 a.m.3D Modelling of a Diesel Particle Filter: Kinetic AspectsKirsten Leistner, IFP / University of Paris VI
11:00 a.m.Coupling 1-D Aftertreatment Models with 3-D Flow and Solid Heat Conduction Simulations in STAR-CDMike Weaver, CD-adapco
11:30 a.m.Effects of Fuel Type on Lean NOx Aftertreatment by Dual SCR (HC-SCR + NH3-SCR)Galen Fisher, University of Michigan
12:00 noonOn-Site Working Lunch (with discussions and Q&A on morning presentations)
1:00 p.m.Particulate Oxidation Kinetics: Surface Area DependenceAndrea Strzelec, Oak Ridge National Laboratory
1:30 p.m.SIDI Particles: Legislation, current levels, and controlJohn Kasab, Ricardo
2:00 p.m.Coffee Break
2:30 p.m.25 Years of DPF Simulation: the Standard Model RevisitedAthanasios Konstandopoulos, APT Lab, CPERI/CERTH
3:00 p.m.Panel Discussion: Integrated Systems and Full Vehicle SimulationPaul Laing, Ford
Ruediger Steiner, Daimler
Gary Salemme, Cummins
Yongsheng He, GM
Chris Rutland, UW-Madison
4:00 p.m.Open panel discussion and question and answers regarding OBDAll
5:30 p.m.End of second day sessions

Thursday, April 22nd, 2010

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:15 a.m.Invited Talk: Aftertreatment Models in Full System Simulations for System IntegrationNeal Currier, Cummins Inc.
9:15 a.m.Development of Clean Diesel NOx After-Treatment System with Sulfur Trap CatalystHiromasa Nishioka, Toyota Motor Corporation
9:45 a.m.Factors affecting LNT NH3 selectivityJae-Soon Choi, Oak Ridge National Laboratory
10:15 a.m.Coffee Break
10:30 a.m.Studies of LNT Sulfation and Desulfation at PNNLCharles Peden, Pacific Northwest National Laboratory
11:00 a.m.Detailed kinetic modeling study of NOx oxidation and storage over Pt/Ba/Al2O3 catalystsNikola Rankovic, IFP
11:30 a.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
12:30 p.m.Nitrate and Sulfate Storage and Stability on Common Lean NOx Trap ComponentsTodd Toops, Oak Ridge National Laboratory
1:00 p.m.Systems level simulation of hybrid vehicles with various aftertreatment optionsKalyana Chakravarthy, Oak Ridge National Laboratory
1:30 p.m.Update on Microkinetic Modeling of Lean NOx Trap ChemistryRichard Larson, Sandia National Laboratories
2:00 p.m.Modeling of a combined exhaust gas aftertreatment system: NOx storage and reduction + NH3-SCRPetr Koci, Institute of Chemical Technology, Prague
2:30 p.m.Development of Pt –free, Perovskite based Lean NOx Trap (LNT) CatalystsWei Li, GM Global R&D
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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