CO2 reduction using adsorption followed by nonthermal plasma treatment

Electrostatics 2015

物理学;数学

Nakajima, Kenji^1 ; Takahashi, Kazuya^1 ; Tanaka, Masanari^1 ; Kuroki, Tomoyuki^1 ; Okubo, Masaaki^1

Department of Mechanical Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai

599-8531, Japan^1

关键词: CO concentrations;    CO2 reduction;    Non-thermal plasma treatment;    Nonthermal plasma;    Physical adsorption;    Plasma reactors;    Plasma reduction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/646/1/012056/pdf
DOI  :  10.1088/1742-6596/646/1/012056

来源: IOP

【 摘 要 】

Carbon dioxide (CO2) is one of the main substances linked to global warming, and its emission should be reduced. In this study, a CO2reduction treatment using an adsorbent and a nonthermal plasma flow is investigated. This treatment comprises a physical adsorption process and nitrogen (N2) plasma reduction process. In the physical adsorption process, CO2is adsorbed by the adsorbent. In the N2plasma reduction process, the adsorbed CO2is reduced to CO by a nonthermal plasma flow that is generated by a plasma reactor with a circulating N2plasma flow. The generated CO can be reused as a fuel. We estimate this experimental results by calculating conversion efficiency of CO2to CO. In the N2plasma reduction process, the CO concentration reaches approximately 1%, regardless of the number of experiments, and conversion efficiency reaches at most 5.3%.