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2017 CLEERS Workshop

October 3 - October 5


CLEERS Workshops are annual meetings open to all those who are interested in understanding and simulating the performance of exhaust emission control devices under realistic operating conditions. The Workshops provide an informal, focused forum to:

  • share recent experimental and computational simulation experience with advanced aftertreatment technologies;
  • enhance emissions control research collaborations among industry, universities, and DOE national laboratories; and
  • identify the most pressing pre-competitive research priorities for emissions control.

CLEERS Workshops feature invited presentations by internationally prominent researchers and a moderated discussion with an invited panel of industry experts.

Workshop participants are encouraged to contribute oral presentations and posters.

Topic Areas


  • Passive NOx adsorbers (PNA)
  • Hydrocarbon traps
  • Selective catalytic reduction (SCR) of NOx by urea/ammonia
  • Oxidation catalysts (DOC, MOC, etc.)
  • Three-way catalysts (TWC)
  • Diesel and gasoline particulate filters (DPF, GPF)
  • Selective catalytic reduction of NOx by hydrocarbons (HC SCR)


  • Identification of reaction mechanisms (from micro-kinetic through global) and kinetic parameters
  • Modeling strategies for improved accuracy and/or reduced computation time
  • Drive cycle simulations of advanced vehicle/emissions control systems
  • Formulation, evaluation, and simulation of catalysts with lower operating temperatures
  • Multifunctional aftertreatment devices: catalyst coated filters, layered/zoned washcoats
  • Integration of engines and emissions controls
  • Durability
  • Reductant (urea or fuel) delivery: spray modeling, decomposition processes, deposit formation


Tuesday, October 3rd

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:05 a.m.Invited Talk: Palladium, zeolite, ceria based passive NOx adsorbersLouise Olsson, Chalmers University
8:55 a.m. An infrared and XAS study on NO adsorption on Pd/zeolite under complex gas feedDongxia Liu, Johnson Matthey
9:20 a.m. Low-Temperature Pd/Zeolite Passive NOx Adsorbers: Structure, Performance and Adsorption ChemistryJanos Szanyi, Pacific Northwest National Laboratory
9:45 a.m. Protocols for Low Temperature Catalyst Characterization and Performance EvaluationKen Rappe, Pacific Northwest National Laboratory
10:10 a.m.Coffee Break
10:40 a.m. Spatio-Temporal Features of the Hydrocarbon Trap: Spatial Nonuniformities and Sustained OscillationsMichael Harold, University of Houston
11:05 a.m. The impacts of Pd in BEA zeolite on decreasing cold start HC emission of an E85 vehicleLifeng Xu, Research and Innovation Center, Ford Motor Company
11:30 a.m. Approaching the 150°C Challenge with passive trapping materials and highly active oxidation catalystsAndrew Binder, Oak Ridge National Laboratory
11:55 a.m. HC Emissions and Diesel Oxidation Catalyst Characterization when Burning a Low RON Gasoline Fuel in a Compression Ignition EngineChristophe CHAILLOU, Aramco
12:20 p.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
1:20 p.m. Analysis of light-off features of DOC with an exhaust containing CO and different HCs.Rama Krishna Dadi, University of Houston
1:45 p.m. Robust and Efficient Low Temperature Diesel Oxidation over Noble Metal Supported TiO2 Nano-array Integrated Catalytic ConvertersPu-Xian Gao, University of Connecticut
2:10 p.m. Sulfur sorption and oxidation influences on methane combustion processes with bimetallic Pd/Pt catalystsMonique Shauntá Wilburn, University of Virginia; University of Houston
2:35 p.m. Update on California Low NOx Program Demonstration ResultsChristopher Sharp, Southwest Research Institute
3:00 p.m.Coffee Break
3:30 p.m.Panel Discussion: Emerging Modeling Needs for Low Temperature Emissions ControlMichael Cunningham (Cummins)
Michael Harold (University of Houston)
Wei Li (GM)
Manish Sharma (BASF)
TBD (Johnson Matthey)
5:30 p.m.End of first day sessions

Wednesday, October 4th

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:05 a.m.Invited Talk: Dynamic multinuclear sites formed by mobilized copper ions in NOx selective catalytic reductionWilliam Schneider, University of Notre Dame
9:20 a.m.NOx abatement - 1D/3D simulation of urea dosing and selective catalytic reductionJohann Wurzenberger, AVL List GmbH
9:45 a.m.Development and Validation of a Multi-Site Kinetic Model for NH3-SCR over Cu-SSZ-13Rohil Daya, Isuzu Technical Center of America
10:10 a.m.Coffee Break
10:40 a.m.Low temperature performance and characterization of solid-state ion-exchanged Cu-CHA for ammonia SCR applicationsHanna Härelind, Competence Centre for Catalysis, Chalmers University of Technology
11:05 a.m.Insights into the deactivation of Cu/SAPO-34 by low- and high-temperature hydrothermal treatmentFeng Gao, PNNL
11:30 a.m.Elucidating the origin and nature of SCR-onset conversion inflections over commercial Cu-chabazite SCR catalysts via spatiotemporal measurements and modelingWilliam Partridge, Oak Ridge National Laboratory
11:55 a.m.Production of Ammonia from Diesel Exhaust Fluid for Low Temperature Diesel Emissions ControlRandal Goffe, PACCAR Technical Center
12:20 p.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
1:20 p.m.Sulfur poisoning of Cu-SSZ-13 for NH3-SCR: kinetic model developmentYasser Jangjou, University of Virginia
1:45 p.m.Deactivation of a Cu-CHA NH3-SCR catalyst by SO2 and SO3Peter Sams Hammershøi, Haldor Topsøe A/S and DTU
2:10 p.m.On-cycle emissions and fuel economy for MY2025John Kasab, AVL Powertrain Engineering Inc.
2:35 p.m.Carbon Canister and Evaporative Emission Control System (EVAP) ModelingJonathan Brown, Gamma Technologies
3:00 p.m.Coffee Break
3:30 p.m.Poster Session
Mechanistic study of Pd-BEA as a model catalyst for PNA+DOC integrationYuntao Gu, University of Virginia
Evaluation of Zeolites as Hydrocarbon Traps for Cold Start ApplicationsAnnalisa Tosti, University of Virginia
Oxidative Reactivity Differences of E0 and E30 Gasoline Direct Injection Particulate MatterAndrea Strzelec, Texas A&M University
Filtration and Pressure Drop Behavior of High Porosity Gasoline Particulate FiltersAndrea Strzelec, Texas A&M University
Measurement and modeling of adsorption/desorption phenomena on traps for low temperature exhaust emissions controlJosh Pihl, Oak Ridge National Laboratory
Nature and Consequences of Al - Al Pairing in SSZ-13 ZeoliteWilliam Schneider, University of Notre Dame
Use of Transition Metals to Reduce Cold Start HC EmissionsKevin Guo, Ford Motor Company
Methane oxidation over, and regeneration of, sulfur-treated bimetallic Pd/Pt catalystsMonique Shauntá Wilburn, University of Virginia; University of Houston
Sulfur desorption characteristics as a function of Pd:Pt mole ratio for low-temperature methane combustion bimetallic Pd/Pt catalystsMonique Shauntá Wilburn, University of Virginia; University of Houston
Active site requirements in oxidation and reduction halves of the Cu redox cycle during Standard NH3-Selective Catalytic Reduction of NOx on Cu-SSZ-13Ishant Khurana, Purdue University
Nature of SO2 poisoned Cu-SSZ-13 Catalysts under Ammonia Selective Catalytic Reduction (NH3-SCR) ConditionsArthur J. Shih, Purdue University
Hydrocarbon and NO trap/release characteristics of Pd/ and Ag/zeolites with US-DRIVE ProtocolAndrew Binder, Oak Ridge National Laboratory
Investigation of a series of CeO2 supported Co3O4 catalysts for NO reduction by COTaejin Kim, Stony Brook University
Enhanced hydrothermal stability of Cu-SSZ-13 catalysts with phosphorus modificationYongdan Li, Tianjin University and Aalto University
Multi-Instrument Comparison of Exhaust Species from a GDI EngineJason Gaudet, University of Michigan
Impact of soot mass on the durability of the SCR washcoat on DPF (SDPF) catalystAnand Lolap, Umicore Autocat USA Inc.
Real-Time Catalyst Monitoring and Diagnostics using Radio Frequency SensorsPaul Ragaller, CTS Corporation, Boston Innovation Office
Impact of Fuel Injector Design and Operating Pressure on PM Emissions from a PFI EngineYan Chang, University of Michigan-Ann Arbor
Impact of Novel Bio-fuel Components on the Performance of Three-Way Catalysts for Control of SI Engine EmissionsSreshtha Sinha Majumdar, Oak Ridge National Laboratory
Soot Sensor Technology for OBD, Particulate Filter Load Estimation and PEMS ApplicationsAthanasios Konstandopoulos, CERTH
Mechanistic study of ethanol SCR of NOx over Ag/Al2O3 with a spatial distribution of productsGalen Fisher, University of Michigan
5:30 p.m.End of second day sessions
6:30 p.m.No-Host Dinner in the Grande Ballroom at the Sheraton Ann Arbor. The cost to attend the dinner is $45 and prepayment to attend is required. The workshop registration form has an option to add the dinner to your registration.

Thursday, October 5th

7:30 a.m.Registration/Continental Breakfast
8:00 a.m.Welcome and Introduction
8:05 a.m.Invited Talk: The Challenges of Low Temperature Aftertreatment for Efficient Light Duty (LD) Combustion Engines – Broad Based Approaches and FCA EffortsCraig DiMaggio, FCA US LLC
8:55 a.m.Ammonia Generation over TWC with NOX Storage Component for Passive SCR NOX Control in Lean Gasoline EnginesVitaly Prikhodko, Oak Ridge National Laboratory
9:20 a.m.Case History – LNT Catalysis at Ford Motor CompanyChristine Lambert, Ford Motor Company
9:45 a.m.Experimental and Modeling Studies of Cycle Frequency, Reductant Type and Non-Isothermal Effect on the Performance of a Lean NOx TrapAllen Wei-Lun Ting, University of Houston
10:10 a.m.Coffee Break
10:40 a.m.Operating Regimes with Rapidly Pulsed Reductants in Diesel NOx Reduction with Lean NOx Traps: Experiment and ModelingAmin Reihani, University of Michigan
11:05 a.m.Sensitivity of Alkane Light-off to Variations in Lambda in Model TWCsAndrew (Bean) Getsoian, Ford Motor Company
11:30 a.m.Kinetic Modeling Dynamic Oxygen Storage Capacity in Fresh and Aged Three-way Catalysts: Surface and Subsurface Oxygen StorageJian Gong, Cummins Inc.
11:55 a.m.Fuel and lubricant impacts on GDI cold-start particulate matterMelanie Moses-DeBusk, NTRC - Oak Ridge National Laboratory
12:20 p.m.On-Site Working Lunch (with discussions and Q&A on morning presentations)
1:20 p.m.Invited Talk: Lubricant-derived ash and the diesel particulate filter: from fundamental, nanoscale measurements to system-level considerationsCarl Justin Kamp, Massachusetts Institute of Technology (MIT)
2:10 p.m.Filter wall-scale experiments to evaluate the impact of particle morphology on capture efficiency in a ceramic particulate filterSandeep Viswanathan, University of Wisconsin-Madison
2:35 p.m.GPF Modeling and Multi-Objective Optimization InvestigationPengze Yang, Texas A&M University
3:00 p.m.Coffee Break
3:30 p.m.Soot filtration simulation in diesel particulate filter with GeoDictMehdi Azimian, Math2Market GmbH
3:55 p.m.Experimental Study and Numerical Interpretation on the Temperature Field of DPF during Active Regeneration with Hydrocarbon InjectionJun Zhang, Tsinghua University
4:20 p.m.Development of a MPF Model with a Kalman Filter State Estimator for Simulation and Control of Particulate Matter Distribution of a CPF for Aftertreatment System Control ApplicationsBoopathi Singalandapuram Mahadevan, Michigan Technological University
4:45 p.m.Coating distribution in a commercial SCR-filterMark Stewart, PNNL
5:10 p.m.End of third day sessions

The 2017 CLEERS Workshop will be held October 3-5, 2017 at the Sheraton Ann Arbor

Conference Hotel

Sheraton Ann Arbor
3200 Broadwalk Street
Ann Arbor, MI 48108-1774


We have a block of rooms reserved at conference hotel at a special rate.  You can book, modify, or cancel a reservation from January 13, 2017 to October 6, 2017 on Sheraton Ann Arbor Website (OR copy and paste the following link into a web browser https://www.starwoodmeeting.com/events/start.action?id=1701133541&key=B4ABE5F)

Workshop Dates:October 3-5, 2017
Deadline to submit contributed presentation & poster abstracts:June 16, 2017
Extended deadline to submit contributed presentation & poster abstracts:June 30, 2017
Deadline for reduced fee registration:August 15, 2017
Deadline for full fee registration:September 26, 2017
Deadline to register for no-host dinner:September 26, 2017
Author Resources

Abstract Submission Deadline extended to June 30, 2017

Submit Abstract

Workshop Registration

Workshop Registration

$225 Reduced Registration Fee Deadline: August 15, 2017

$300 Full Registration Fee Deadline: September 26, 2017

$45 No-host Dinner Fee Deadline: September 26, 2017

$50 cancelation fee, no refunds after September 26, 2017



October 3
October 5
Event Category:


Sheraton Ann Arbor
3200 Boardwalk Drive
Ann Arbor, MI 48108 United States
+ Google Map
(734) 996-0600

Key Dates

Abstracts Due:
June 16, 2017
Deadline for reduced fee registration:
August 15, 2017
Deadline for full fee registration:
September 26, 2017
Deadline to register for no-host dinner:
September 26, 2017