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Plasma catalysis of diesel exhaust for NOX removal: a case study with industrial wastes

Nishanth, K and Rajanikanth, BS (2021) Plasma catalysis of diesel exhaust for NOX removal: a case study with industrial wastes. In: International Journal of Environmental Studies .

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Official URL: https://doi.org/10.1080/00207233.2021.1971463


In the current work, a novel combination of discharge plasma and industrial wastes has been proposed to explore the possibility of treating the oxides of nitrogen (NOX) in diesel exhaust through plasma-activation of abundant and freely available industrial wastes. Five industrial wastes have been selected for testing as potential catalysts, namely fly ash, foundry sand, bagasse, mulberry residue, and oyster shells. The diesel exhaust was treated using plasma catalysis, by allowing it to flow through a dielectric barrier discharge plasma reactor packed with industrial waste pellets, at ambient temperature and atmospheric pressure. An increase in NOX removal during plasma catalysis, in comparison to plasma-only treatment, was observed through experiments conducted using the pellets. Maximum removal of NOX (70) was obtained during plasma catalysis using oyster shell pellets. The results have been discussed in detail along with the possible reaction pathways and explanations for the NOX removal during plasma catalysis. © 2021 Informa UK Limited, trading as Taylor & Francis Group.

Item Type: Journal Article
Publication: International Journal of Environmental Studies
Publisher: Routledge
Additional Information: The copyright for this article belongs to Routledge
Keywords: Ashes; Atmospheric movements; Atmospheric pressure; Catalysis; Dielectric materials; Diesel engines; Fly ash; Foundry sand; Molluscs; Nitrogen plasma; Pelletizing; Plasma applications; Plasma theory; Shellfish, Dielectric barrier discharge plasmas; Diesel exhausts; Discharge plasma; Oxides of nitrogen; Oyster shell; Plasma activation; Plasma catalysis; Reaction pathways, Electric discharges
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 03 Dec 2021 07:03
Last Modified: 03 Dec 2021 07:03
URI: http://eprints.iisc.ac.in/id/eprint/70115

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