Impact of Catalyst Geometry on Diffusion and Selective Catalytic Reduction Kinetics under Elevated Pressures.

Chem Ing Tech 2018 Jun 26;90(6):795-802. Epub 2018 Apr 26.

Paul Scherrer Institut (PSI) Bioenergy and Catalysis Laboratory 5232 Villigen Switzerland.

In marine diesel engine applications, selective catalytic reduction (SCR) upstream of the turbocharger may become the preferred technology when dealing with high sulfur fuels and low exhaust gas temperatures. The target nitrogen oxide reductions in combination with minimum ammonia slip and reduced gas diffusion rates under elevated pressures require understanding of the impact of catalyst geometry on the SCR kinetics. The extent, trends, and sources for this observation are elucidated in this work by systematic testing of catalysts with equal geometry and/or intrinsic activity.

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http://dx.doi.org/10.1002/cite.201700146DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6743712PMC
June 2018

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