Jump to main content
Jump to site search
SCHEDULED MAINTENANCE Close the message box

Maintenance work is planned for Monday 16 August 2021 from 07:00 to 23:59 (BST).

Website performance may be temporarily affected and you may not be able to access some PDFs or images. If this does happen, refreshing your web browser should resolve the issue. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 4, 2021

NOx production in a rotating gliding arc plasma: potential avenue for sustainable nitrogen fixation

Author affiliations

Abstract

The fast growing world population demands food to survive, and nitrogen-based fertilizers are essential to ensure sufficient food production. Today, fertilizers are mainly produced from non-sustainable fossil fuels via the Haber–Bosch process, leading to serious environmental problems. We propose here a novel rotating gliding arc plasma, operating in air, for direct NOx production, which can yield high nitrogen content organic fertilizers without pollution associated with ammonia emission. We explored the efficiency of NOx production in a wide range of feed gas ratios, and for two arc modes: rotating and steady. When the arc is in steady mode, record-value NOx concentrations up to 5.5% are achieved which are 1.7 times higher than the maximum concentration obtained by the rotating arc mode, and with an energy consumption of 2.5 MJ mol−1 (or ca. 50 kW h kN−1); i.e. the lowest value so far achieved by atmospheric pressure plasma reactors. Computer modelling, using a combination of five different complementary approaches, provides a comprehensive picture of NOx formation in both arc modes; in particular, the higher NOx production in the steady arc mode is due to the combined thermal and vibrationally-promoted Zeldovich mechanisms.

Graphical abstract: NOx production in a rotating gliding arc plasma: potential avenue for sustainable nitrogen fixation

Supplementary files

Article information


Submitted
18 Oct 2020
Accepted
27 Jan 2021
First published
28 Jan 2021

Green Chem., 2021,23, 1748-1757
Article type
Paper

NOx production in a rotating gliding arc plasma: potential avenue for sustainable nitrogen fixation

F. Jardali, S. Van Alphen, J. Creel, H. Ahmadi Eshtehardi, M. Axelsson, R. Ingels, R. Snyders and A. Bogaerts, Green Chem., 2021, 23, 1748 DOI: 10.1039/D0GC03521A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements