Numbering up and sizing up gliding arc reactors to enhance the plasma-based synthesis of NO x .

Autor: van Raak T; Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology De Rondom 70 Eindhoven 5612 AP The Netherlands s.li1@tue.nl., van den Bogaard H; Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology De Rondom 70 Eindhoven 5612 AP The Netherlands s.li1@tue.nl., De Felice G; Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology De Rondom 70 Eindhoven 5612 AP The Netherlands s.li1@tue.nl., Emmery D; Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology De Rondom 70 Eindhoven 5612 AP The Netherlands s.li1@tue.nl., Gallucci F; Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology De Rondom 70 Eindhoven 5612 AP The Netherlands s.li1@tue.nl.; Eindhoven Institute for Renewable Energy Systems (EIRES), Eindhoven University of Technology PO Box 513 Eindhoven 5600 MB The Netherlands., Li S; Sustainable Process Engineering, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology De Rondom 70 Eindhoven 5612 AP The Netherlands s.li1@tue.nl.
Jazyk: angličtina
Zdroj: Catalysis science & technology [Catal Sci Technol] 2024 Jul 29; Vol. 14 (18), pp. 5405-5421. Date of Electronic Publication: 2024 Jul 29 (Print Publication: 2024).
DOI: 10.1039/d4cy00655k
Abstrakt: Non-thermal plasma-based NO x synthesis from ambient air is receiving an increasing amount of interest for its potential in small-scale, sustainable fertilizer production. Nevertheless, most reported research focuses on lab-scale systems and a single reactor with limited production. In this work, two gliding arc reactors (GARs) with 2 mm discharge gaps were connected in series or in parallel to explore strategies for scaling up the productivity. A single GAR with an enlarged discharge gap of 4 mm was also investigated for comparison. Operation parameters such as flow rate, discharge power & mode, and effective residence time were tested. The NO x concentration increased for all configurations with an increase in specific energy input (SEI), and effective residence time. The case of reactors connected in series outperformed all other configurations. The energy consumptions and NO x productions achieved were 2.29-2.42 MJ mol N -1 and 124.6-158.3 mmol N h -1 , respectively. The NO 2 selectivity could be enhanced by prolonging the post-plasma oxidation time while consuming the excess O 2 in the feed and utilizing the low temperatures at the reactor(s) outlet. By using this connection strategy, NO x production can be doubled with a 20.9% improvement in energy consumption compared to a single reactor.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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