Application of microwave plasma technology to convert carbon dioxide (CO2) into high value products: A review. (15th February 2022)

• Record Type: Journal Article
• Authors: Ong, M.Y.; Nomanbhay, S.; Kusumo, F.; Show, P.L.
• Is Part Of: Journal of cleaner production. Volume 336(2022)
• Publication Date: 2022-02-15
• Subjects: Microwave plasma -- CCU -- CO2 conversion -- Syngas -- Application -- Low carbon; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2022.130447
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: The most important challenge faced by mankind in the 21st century is the global warming issues associated with the global energy demand. A sustainable and low carbon-based energy economy must be developed to reduce the dependency on non-renewable fossil fuels. Other than exploring renewable energy technology, such as solar, hydro, and wind, recycling and utilization of carbon dioxide (CO2 ) in synthesizing of high value-added products is also an alternative solution to mitigate climate change. As a potential technology, the plasma-based decomposition of CO2 has received a lot of interest, especially microwave discharge due to its outstanding ability to produce non-equilibrium plasma with high ionization power, to convert CO2 in an energy-efficient manner, and others. Hence, this paper is written to provide an overview of the microwave plasma technology on CO2 conversion. The basic theory of plasma technology has also been discussed to brief the readers, particularly the non-specialist, on the technical background. The parameters that affect the performance of the CO2 conversion process under microwave discharge such as pressure, microwave power supply, gas flow rate/pattern, co-reactant, and catalyst, are also highlighted. To sum up, the prospects and challenges for the commercialization of CO2 utilization, such as methane(CH4 ) with CO2 reforming in syngas production, using microwave plasma technology have also been emphasized. Highlight: Carbon Capture and Utilization is the promising method to mitigate climate change. CO2 can be converted into various valuable products, e.g.: syngas, acetic acid, and organic and inorganic carbonates. Non-thermal plasma technology allows the conversion of CO2 to be conducted at mild condition. Microwave plasma could reach the CO2 conversion efficiency of 60% easily under non-equilibrium conditions. Pressure, microwave (MW) power, gas flow rate/pattern, co-reactant and catalyst can affect the MW plasma-CO2 conversion.