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    Hydrogen Selective Catalytic Reduction of Nitrogen Oxide on Pt-and Pd-Based Catalysts for Lean-Burn Automobile Applications

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    Final manuscript 2020-01-2173.pdf
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    1.445Mb
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    Description:
    Accepted manuscript
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    Type
    Conference Paper
    Authors
    Alghamdi, Nawaf M.
    Restrepo Cano, Juan
    Anjum, Dalaver H.
    Im, Hong G. cc
    Kalamaras, Christos
    Gascon, Jorge cc
    Sarathy, Mani cc
    KAUST Department
    Chemical Engineering
    Chemical Engineering Program
    Clean Combustion Research Center
    Combustion and Pyrolysis Chemistry (CPC) Group
    Computational Reacting Flow Laboratory (CRFL)
    Electron Microscopy
    Imaging and Characterization Core Lab
    KAUST Catalysis Center (KCC)
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2020-09-15
    Embargo End Date
    2021-03-16
    Permanent link to this record
    http://hdl.handle.net/10754/665824
    
    Metadata
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    Abstract
    The utilization of H2 to catalytically treat NO emissions under lean-burn engine exhaust conditions was studied on Pt-and Pd-containing catalysts supported on CeO2 and MgO. The catalytic performance was examined using a fixed-bed reactor whose dry effluent gas stream was analyzed by an online FTIR analyzer. The catalysts NO conversion and N2 selectivity were measured in the range of 125-3000C with a feed gas composition of 0.05%NO/1%H2/10%O2/N2. The CeO2-based catalysts exhibited higher NO conversion, and the most effective catalyst was Pd/CeO2, with a conversion of 67% and selectivity of 70% near 2300C. The prepared solids were characterized using different techniques (BET, ICP-OES, CO pulse chemisorption, STEM, EELS and EDS) to correlate the structural and morphological properties of the metallic phase and the support with the catalytic activity. CeO2 is a more effective support as it yields higher metal dispersion and better facilitates the reduction of the Pt and Pd catalysts.
    Citation
    Alghamdi, N. M., Restrepo Cano, J., Anjum, D. H., Im, H. G., Kalamaras, C., Gascon, J., & Sarathy, S. M. (2020). Hydrogen Selective Catalytic Reduction of Nitrogen Oxide on Pt- and Pd-Based Catalysts for Lean-Burn Automobile Applications. SAE Technical Paper Series. doi:10.4271/2020-01-2173
    Publisher
    SAE International
    Conference/Event name
    SAE 2020 International Powertrains, Fuels and Lubricants Meeting, PFL 2020
    DOI
    10.4271/2020-01-2173
    Additional Links
    https://www.sae.org/content/2020-01-2173/
    ae974a485f413a2113503eed53cd6c53
    10.4271/2020-01-2173
    Scopus Count
    Collections
    Conference Papers; Imaging and Characterization Core Lab; Physical Science and Engineering (PSE) Division; Chemical Engineering Program; Mechanical Engineering Program; KAUST Catalysis Center (KCC); Clean Combustion Research Center

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