Effect of Argon in Nitrogen Gliding Arc Plasma for Ammonium Ions Enrichment in Water

Balakrishnan, I and Jayanarasimhan, A and Rao, L and Sinha, SK and Subramaniam, Y (2024) Effect of Argon in Nitrogen Gliding Arc Plasma for Ammonium Ions Enrichment in Water. In: Plasma Chemistry and Plasma Processing .

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Abstract

This work investigates the effect of Ar addition on N2 gliding arc plasma to enhance ammonium ions concentration in water. The concentration of ammonium ion increased by 50.2 when Ar gas was added upto 40 by volume to the N2 gliding arc plasma, thus indicating the significant contribution of Ar in synthesis. Adding 20 Ar in N2 resulted in a maximum concentration of 16.5 ppm and a production rate of 1.31 mg hr-1. While adding 40 Ar into N2 plasma, the highest energy efficiency of 0.036 g-KWh�1was obtained with a specific energy input of 742.5 J/L. The mechanisms of enrichment with Ar addition were investigated by studying the electrical properties, vibrational, rotational and electron temperature of the gliding arc plasma with respect to the addition of Ar concentration in N2 plasma. Results show that the addition of Ar raises the vibrational and electron temperatures, and decreases the rotational temperature of the gliding arc plasma. (As per the reviewer-2 suggestion, this line has been removed from the abstract). Particularly, the presence of 26.5 Ar by volume in N2 plasma results in a significant ion current, which generates high ionization of. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.

Item Type:	Journal Article
Publication:	Plasma Chemistry and Plasma Processing
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer.
Keywords:	Argon; Electric arcs; Electron temperature; Energy efficiency; Ionization of gases; Ions; Nitrogen; Nitrogen plasma, Ammonium ions; Excitation; Gliding arc; Gliding arc plasmas; High energy efficiency; Ion concentrations; Maximum concentrations; Production rates; Specific energy input; Vibrational temperature, Nitrogen fixation
Department/Centre:	Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA)
Date Deposited:	07 Aug 2024 11:09
Last Modified:	07 Aug 2024 11:09
URI:	http://eprints.iisc.ac.in/id/eprint/85260

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