文献类型：期刊文献

英文题名：CO2 Reduction by Multiple Low-Energy Electric Discharges in a Microstructured Reactor: Experiments and Modeling

作者：Miao, Yu[1];Kreider, Peter[4];Pommerenck, Justin[2];AuYeung, Nick Jun[2];von Jouanne, Annette[3];Jovanovic, Goran[2];Yokochi, Alexandre[3]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, Shanghai 200237, Peoples R China;[2]Oregon State Univ, Sch Chem Biol & Environm Engn, Corvallis, OR 97331 USA;[3]Baylor Univ, Sch Engn & Comp Sci, Waco, TX 76798 USA;[4]Australian Natl Univ, Res Sch Engn, Canberra, ACT 2601, Australia

年份：2022

卷号：61

期号：30

起止页码：10756

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20223212553522);WOS:【SCI-EXPANDED(收录号:WOS:000830345700001)】；

基金：? ACKNOWLEDGMENTS This work is financially supported by the Research and Technology Institute (RTI) of PTT Public Company Limited, Thailand, and the Advanced Research Projects Agency-Energy (ARPA-E) under the US Department of Energy [DE- 0000679] .

语种：英文

外文关键词：Atmospheric pressure - Energy efficiency - Glow discharges

摘要：The simple, robust, and energy-efficient reduction of CO2 to useful products is a significant goal of modern chemistry and chemical engineering. In this study, a novel CO2 reduction process was introduced by employing multiple low energy non-thermal electric glow discharges at the microscale. The process is neither dependent on limited lifetime catalysts nor consumable chemicals, enabling continuous operation over long periods, and operates at atmospheric pressure and temperature, thus simplifying process implementation. The influence of three parameters on the conversion of CO2 within the active volume and energy efficiency was studied, namely, the relative operational regimes on the V-I curve, the residence time of the reactant gas mixture in the plasma region, and the CO2 to water vapor molar ratio. High energy efficiencies of 80-95% and a CO2 conversion of 70-80% can be achieved in the active volume. A mathematical model reflecting geometry and flow conditions inside the microreactor was developed to simulate the chemical reaction process. Through an optimization process, the mathematical model parameters were determined to fit the experimental data and predict primary reaction constants for CO2 reduction.