Challenges in emission control of natural gas and hydrogen engines Prof. Olaf Deutschmann Karlsruhe Institute of Technology Abstract: Lean-operated internal combustion engines fueled by natural gas (NG) or hydrogen have attracted a lot of interest recently due to their potential to reduce or avoid emissions of greenhouse gases. Since the fuel is burnt by air ...

Laser-based Ammonia Imaging and Prospects for other Applications of Absorption Spectroscopy in Aftertreatment Systems Prof. Scott Sanders University of Wisconsin Abstract: First, this talk will describe ammonia imaging experiments performed at Cummins Emission Solutions.  In that work, we used a 10.4 um laser to image ammonia concentration in a diesel aftertreatment system.  Optical access through ...

Computational Modeling of Condition and Particle Size Effects on the Interconversion between Nanoparticles and Cations in Pd-exchanged SSZ-13 Zeolites Prof. Chris Paolucci University of Virginia Abstract: Metal-exchanged zeolites, though often exhibiting enhanced resistance to reduction and sintering in comparison to other supported metal cation counterparts, may gradually lose their potency in reducing environments. Optimization of ...

Coupled Uptake and Conversion of NOx and Reductants on Pd/SSZ-13: Experiments and Modeling Prof. Mike Harold University of Houston Abstract: The trapping of NO in the presence of various reductants (CO, H2, C2H4, and C12H26) and H2O over a Pd/SSZ-13 washcoated Passive NOx Adsorber (PNA) monolith is examined through a combination of experiments, molecular and ...