Plasma Catalysis of Diesel Exhaust for NOXAbatement: A Feasibility Study with Red Mud Industrial Waste

Nishanth, K and Rajanikanth, BS (2021) Plasma Catalysis of Diesel Exhaust for NOXAbatement: A Feasibility Study with Red Mud Industrial Waste. In: IEEE Transactions on Plasma Science, 49 (8). pp. 2340-2349.

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Abstract

Electrical discharge-based nonthermal plasma is being used for the past three decades at laboratory level to treat the oxides of nitrogen (NOX) present in diesel exhaust. To improve the NOX abatement, commercially available expensive catalysts and adsorbents are usually used in combination with plasma. In this article, a new line of experiments was initiated to explore plasma activation of the red mud, a cheap and abundant waste from aluminum industry. The dominance of plasma catalysis associated with plasma activation of red mud at room temperature has been discussed. At about 60 J/L, the plasma catalysis gave 91 NOX removal, when compared to 2 with plasma and 7 with plasma-cascaded red mud. The possible reaction mechanisms were identified in light of plasma activated red mud and the studies were carried out at different engine loads. The results have been discussed at length emphasizing the advantages of NOX removal through activation of red mud by electrical discharge plasma. © 1973-2012 IEEE.

Item Type:	Journal Article
Publication:	IEEE Transactions on Plasma Science
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Catalysis; Chemical activation; Diesel engines; Nitrogen plasma, Activated red muds; Aluminum industry; Electrical discharges; Feasibility studies; Nonthermal plasma; Oxides of nitrogen; Plasma activation; Reaction mechanism, Electric discharges
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	18 Oct 2021 10:12
Last Modified:	18 Oct 2021 10:12
URI:	http://eprints.iisc.ac.in/id/eprint/69824

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