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Non-Thermal Plasma Technology for CO2 Conversion-An Overview of the Most Relevant Experimental Results and Kinetic Models

期刊

ENERGIES
卷 15, 期 20, 页码 -

出版社

MDPI
DOI: 10.3390/en15207790

关键词

CO2 capture; hydrogen; biomass gasification; plasma reactor; kinetic models; NTP

资金

  1. European Union [101006656]

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Global warming and increasing global energy demands have driven the need for a sustainable and low-carbon energy economy. One potential strategy to mitigate climate change is the capture/conversion and recycling of CO2, in addition to renewable energy technologies. Non-thermal plasma technology has received much interest due to its ability to work at low temperatures and atmospheric pressure, without the need for high temperature and electricity consumption. This paper provides an overview of non-thermal plasma technologies, kinetic models, and economic studies in CO2 conversion, aiming to optimize this promising technology.
Global warming, along with increasing global energy demands, has led to the need for a sustainable and low-carbon-based energy economy. In addition to renewable energy technologies, such as biomass, solar, hydro, and wind, another possible strategy to mitigate climate change is the capture/conversion and recycling of CO2. In recent years, many methods for both CO2 capture (mainly adsorption, absorption, and membrane) and conversion (many electrolysis, catalyst, and plasma) have been investigated. Conversion technology is less studied but seems to be very promising. Within that, non-thermal plasma technology has received much interest because it works at low temperatures and atmospheric pressure, and there is no need for high temperature and high electricity consumption, which are typical of the catalyst and electrolysis conversion processes, respectively. Therefore, in order to optimize this emerging technology, simulative kinetic models have been developed with the aim of maximizing both energy efficiency and CO2 conversion. In the present paper, an overview of the most common non-thermal plasma technologies was carried out to highlight the advantages and disadvantages of each method. Then, an overview of the most significant kinetic models available in literature was carried out to point out the main reactions occurring during CO2 conversion and also the parameters that most affect the performance of a plasma reactor during CO2 conversion. Then, a brief recap of the literature available on economic studies of the plasma process is given.

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