Superlocal chemical reaction equilibrium in low temperature plasma
Superlocal chemical reaction equilibrium in low temperature plasma
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DOI：
10.1002/aic.16948
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发表时间：
2020-02
期刊：
影响因子：
3.7
通讯作者：
N. B. Uner;E. Thimsen
中科院分区：
文献类型：
--
作者：
N. B. Uner;E. Thimsen
低温等离子体（LTP）是一类独特的开放驱动系统，其中化学反应是不可预测的，使用既定的概念。在LTP中的化学反应的终端状态，被称为超局域平衡态，被假设为由一组建议的状态变量来定义。使用LTP反应器，其中的状态变量已被测量，它示出，CO2自发分裂和流出物的形态是独立的流入物的形态，如果状态变量保持不变，停留时间长。在长停留时间下的CO2转化率（从平衡热力学预计名义上为零）在LTP中可高达70%。所采用的低压等离子体反应器（P = 10毫巴）与大气压介电阻挡放电反应器相比具有相似的体积、生产率和能量效率，这归因于快3个数量级的反应速率。本文受版权保护。All rights reserved.这是作者手稿接受出版，并经过全面的同行评审，但尚未通过编辑，排版，分页和校对过程，这可能会导致此版本和记录版本之间的差异。请将此文章引用为doi：10.1002/aic.16948
Low temperature plasmas (LTP) are a unique class of open-driven systems in which chemical reactions are unpredictable using established concepts. The terminal state of chemical reactions in LTP, termed the superlocal equilibrium state, is hypothesized to be defined by a proposed set of state variables. Using a LTP reactor wherein the state variables have been measured, it is shown that CO2 spontaneously splits and the effluent speciation is independent of the influent speciation if the state variables are held constant and the residence time is long. CO2 conversion at long residence times, which is expected to be nominally zero from equilibrium thermodynamics, can be as high as 70% in the LTP. The employed low pressure plasma reactor (P = 10 mbar) had a similar volume, productivity and energy efficiency compared to an atmospheric pressure dielectric barrier discharge reactor, thanks to reaction rates that were 3 orders of magnitude faster. This article is protected by copyright. All rights reserved. This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1002/aic.16948