
- This event has passed.
11th CLEERS Workshop
2008-05-13 - 2008-05-15
Emphasized topic areas:
- Diesel Particle Filters
- Selective Catalytic Reduction
- Lean NOx Traps
- Oxidation and Reformer Catalysts
- Emissions Control Systems Integration
Objectives:
- 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
Purpose
- 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 11th 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 Workshop 11
- The 11th CLEERS workshop will be hosted by University of Michigan at their Dearborn Campus in Detroit from May 13th through 15th, 2008. 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 – Jonathan L. Male, Pacific Northwest National Laboratory, email jonathan.male@pnl.gov, phone 509-372-6358 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 13th, 2008
7:30 a.m. | Registration/Continental Breakfast | |
8:15 a.m. | Welcome and Introduction | |
8:45 a.m. | Invited Talk: Strategies for Improving Sulfur Tolerance in Diesel LNT Systems | Friedemann Rohr, Umicore |
9:45 a.m. | Impact of PCCI on LNT performance | Vitaly Prikhodko, Oak Ridge National Laboratory |
10:15 a.m. | Coffee Break | |
10:30 a.m. | Sulfation/desulfation study on Umicore LNT catalyst | Jae-Soon Choi, Oak Ridge National Laboratory |
11:00 a.m. | Ammonia Formation and Utilization in Lean NOx Trap Catalysts | Bill Partridge, Oak Ridge National Laboratory |
11:30 a.m. | NO Oxidation Rate as a Function of LNT Loading | Robert Middleton, University of Michigan |
12:00 noon | On-Site Working Lunch (with discussions and Q&A on morning presentations) | |
1:00 p.m. | Invited Talk: Aftertreatment Options and Challenges for Lean-Burn Gasoline Engines | Robert McCabe, Ford Motor Company |
2:00 p.m. | Detailed kinetic modeling of NOx storage and reduction with hydrogen-NH3 formation | Louise Olsson, Chalmers University of Technology |
2:30 p.m. | Microkinetic Modeling of LNT Storage and Regeneration | Richard Larson, Sandia National Laboratories |
3:00 p.m. | Coffee Break | |
3:15 p.m. | Temperature and Concentration Gradients During NOX Storage and Reduction Cycling | William Epling, University of Waterloo |
3:45 p.m. | Effect of Ceria on the Sulfation and Desulfation Characteristics of Lean NOx Trap Catalysts | Mark Crocker, University of Kentucky |
4:15 p.m. | Spatio-Temporal Behavior of NOx Storage and Reduction Monolith Catalysts | Michael Harold, University of Houston |
4:45 p.m. | Fundamental Studies of NOx Adsorber Materials at PNNL | Charles Peden, Pacific Northwest National Laboratory |
5:15 p.m. | End of first day sessions |
Wednesday, May 14, 2008
Thursday, May 15, 2008
7:30 a.m. | Registration/Continental Breakfast | |
8:00 a.m. | Welcome and Introduction | |
8:15 a.m. | X-Ray inspection of Diesel Particulate Filters | Jan Zandhuis, 3DX-Ray Ltd |
8:45 a.m. | Accelerated Aging of Emission Control Devices | Todd Toops, Oak Ridge National Laboratory |
9:15 a.m. | Invited Talk: SCR modeling and simulation | Daniel Chatterjee, Daimler AG |
10:15 a.m. | Coffee Break | |
10:30 a.m. | Thermal Transient Effects on the Performance of Catalysts for SCR of NOx | Jonathan Male, Pacific Northwest National Laboratory |
11:00 a.m. | Simulation Based Control System Analysis of a Urea-SCR Aftertreatment System Based on NH3 Sensing | Maruthi N. Devarakonda, Michigan Tech University |
11:30 a.m. | Effect of Mass Transfer on the Performance of SCR Systems | Nimrod Kapas, University of Michigan - Dearborn |
12:00 noon | On-Site Working Lunch (with discussions and Q&A on morning presentations) | |
1:00 p.m. | Invited Talk: Mechanistic Studies of the Reduction of NOx by Oxygenates | Eric Weitz, Northwestern University |
2:00 p.m. | Kinetic models for NH3 SCR over Cu-ZSM-5 | Louise Olsson, Chalmers University of Technology |
2:30 p.m. | 1D/3D Simulation in the Development of DeNOx Aftertreatment Systems for US10 Heavy Duty Application | Johann Christian Wurzenberger, AVL List GmbH |
3:00 p.m. | End of third day sessions |