An Experimental Investigation on Enhancing Nitrogen Oxides Reduction of Non-Thermal Plasma (NTP) Aftertreatment System with Silver-Base Catalyst with NTP Downstream SCR Catalyst Configuration

Abstract:

This paper delves into the understanding of how dielectric barrier discharge (DBD) non-thermal plasma (NTP) system affects the flue gas compositions and the synergistic effects of DBD-NTP and SCR systems using NTP-downstream-SCR configuration on nitric oxide reduction through the experimental investigation. Simple gas feeds were used to observe the interaction between gases when high voltage discharge was applied. Overall, DBD-NTP was effective in oxidising NO and NH₃ into NO₂ while also reducing NO in the presence of NH₃. When DBD-NTP was installed downstream the SCR catalyst, it demonstrated substantial additional deNOx and reduction of NH₃ slippage. This proposed SCR+DBD-NTP configuration showed a potential to help mitigate low deNOx performance at low temperatures.

• Periodical: Materials Science Forum (Volume 1132)
• Pages: 109-118
• DOI: https://doi.org/10.4028/p-CcFD5C
• Online since: November 2024
• Authors: Warirat Temwutthikun, Panya Promhuad, Teerapong Iamcheerangkoon, Boonlue Sawatmongkon, Kampanart Theinnoi, Sak Sittichompoo*
• Keywords: Catalyst, Dielectric Barrier, Emission Controls, NO Reduction, Non-Thermal Plasma

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