Adsorbed CO2 Dissociation Using Argon and Helium Nonthermal Plasma Flows
Adsorbed CO2 Dissociation Using Argon and Helium Nonthermal Plasma Flows
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DOI：
10.1109/tia.2020.3019766
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发表时间：
2020-08
影响因子：
4.4
通讯作者：
H. Yamasaki;S. Kamei;T. Kuroki;M. Okubo
中科院分区：
文献类型：
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作者：
H. Yamasaki;S. Kamei;T. Kuroki;M. Okubo
近年来，全球变暖已成为一个世界性的问题。二氧化碳（CO2）是造成全球变暖的主要物质之一，应减少其排放。一种有前景的技术是使用等离子体处理将CO2转化为一氧化碳（CO），使得CO本身或其转化为甲烷可以用作内燃机的燃料。在这篇文章中，使用吸附剂和非热等离子体（NTP）流的CO2解离或还原处理系统进行了研究。为了提高转换效率，对Ar或He等离子体的转换效率进行了评估。在物理吸附过程中，制备流量为10 L/min的10%~ 10%的CO2气体，然后将其引入流路中; CO2被吸附剂吸附。在吸附过程之后，设置循环流动通道，然后，用鼓风机产生Ar或He NTP流。结果，吸附的CO2被解吸，其中CO2浓度分别为20%和23%的Ar NTP流和He NTP流。在使用Ar和He NTP流的情况下，CO2转化效率达到21%，并且能量效率分别达到13%和10%。关于CO的能量效率在Ar等离子体的情况下更好，但是使用He等离子体可以产生更多的原子碳。
In recent years, global warming has become a worldwide problem. Carbon dioxide (CO2) is one of the primary substances causing global warming, and its emission should be reduced. A promising technology is the conversion of CO2 to carbon monoxide (CO) using plasma treatment, so that the CO itself or its conversion to methane can be used as fuel for combustion engines. In this article, a CO2 dissociation or reduction treatment system using an adsorbent and nonthermal plasma (NTP) flow is investigated. To improve the conversion efficiency, the conversion efficiency for Ar or He plasma is evaluated. In the physical adsorption process, ∼10% CO2 gas with a flow rate of 10 L/min is prepared, and then, it is introduced into the flow channel; CO2 is adsorbed by the adsorbent. After the adsorption process, the circulation flow channel is set, and then, the Ar or He NTP flow is generated with a blower. As a result, the adsorbed CO2 is desorbed with CO2 concentrations of 20% and 23% by the Ar NTP flow and the He NTP flow, respectively. The CO2 conversion efficiency reaches 21%, and the energy efficiencies reach 13% and 10% with plasma in the cases using the Ar and He NTP flows, respectively. The energy efficiency with regard to CO is better with the Ar plasma, but more atomic carbon can be generated using the He plasma.