Work

Hydrogen fuel production from CO2/CH4 mixture using a novel type of an atmospheric pressure microwave (2.45 GHz) plasma source

Year: 2025

Type: article

Abstract: We report the use of microwave plasma for the production of hydrogen-enriched gas by converting a mixture of CO₂ and CH₄. A novel type of compact and simple in design, waveguide-based, atmospheric pressure plasma source is used. It doesn’t contain a discharge tube, but involve a swirling gas flow and operates without a catalyst. The influence of the input parameters on the conversion process parameters is investigated. It is found that the power of microwaves benefits the concentration of H 2 , but the gas flow rate is found to be detrimental to the H 2 concentration. It is observed that the CO 2 /CH 4 flow rate ratio is another factor influencing the process parameters. The best results obtained of H 2 concentration and conversion rate of CH 4 are 33% and 46%, respectively, while in the terms of H 2 production rate and the energy yield of H 2 production are 118 g/h and 30 g/kWh, respectively.

Source: Scientific Reports

DOI: 10.1038/s41598-025-21309-7

Authors: Dariusz Czylkowski, Bartosz Hrycak, Robert Miotk, Mirosław Dors, Mariusz Jasiński

Institutions: Institute of Fluid Flow-Machinery, Polish Academy of Sciences

Language: English

Topic: Plasma Applications and Diagnostics

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: gold

Estimated APC paid: $2,690