Influence of gas expansion on process parameters in non-thermal plasma plug-flow reactors: A study applied to dry reforming of methane
Influence of gas expansion on process parameters in non-thermal plasma plug-flow reactors: A study applied to dry reforming of methane
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DOI：
10.1016/j.ijhydene.2016.04.148
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发表时间：
2016-06-15
影响因子：
7.2
通讯作者：
Neves, J.
中科院分区：
文献类型：
--
作者：
Pinhao, N.;Moura, A.;Neves, J.
在非热等离子体推流式反应器中发生的化学反应可以改变颗粒的数量、体积流量和物质的浓度，即使它们本身不参与化学反应。然而，这些变化在计算表征化学过程的参数时经常被忽略，从而在诸如转化率、选择性、产率、效率、停留时间、碳平衡和能量效率的参数中引入系统误差。我们讨论了这种忽视所产生的错误，目前使用的方法来考虑这些因素，并提出了一个简单的程序来获得正确的值，基于内标。该程序适用于甲烷转化与CH 4/CO 2或He/CH 4/CO 2的混合物，我们发现，忽略体积通量的变化引入误差高达20%的过程参数。(C)2016年氢能出版有限责任公司。由爱思唯尔有限公司出版。保留所有权利。
The chemical reactions that take place in non-thermal plasma plug-flow type reactors can change the number of particles, the volumetric flow rate and the concentration of species, even if they do not take part in chemical reactions themselves. These changes, however, are frequently neglected in the computation of parameters characterizing the chemical process thus introducing a systematic error in parameters such as conversion, selectivity, yield, efficiency, residence time, carbon balance and energy efficiency. We discuss errors arising from this neglect, the methods currently used to take these factors into account and propose a simple procedure to obtain correct values, based on an internal standard. This procedure is applied on methane conversion with CH4/CO2 or He/CH4/CO2 mixtures where we found that neglecting the volumetric flux change introduces errors of up to 20% on process parameters. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.