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Hydrogen Selective Catalytic Reduction of Nitrogen Oxide on Pt- and Pd-based Catalysts for Lean-Burn Automobile Applications Clean Combustion Research Center, KAUST
- Format:
- Book
- Conference/Event
- Author/Creator:
- Alghamdi, Nawaf M., author.
- Conference Name:
- SAE Powertrains, Fuels & Lubricants Meeting (2020-09-22 : Krakow, Poland)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2020
- Summary:
- The utilization of H2 to catalytically treat NO emissions under lean-burn 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 an NO conversion of 67% and an N2 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. Compared to MgO, CeO2 is a more effective support as it yields higher metal dispersion and better facilitates the reduction of Pt and Pd
- Notes:
- Vendor supplied data
- Publisher Number:
- 2020-01-2173
- Access Restriction:
- Restricted for use by site license
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