Numerical investigation on characteristics of CH/HO/COreforming reaction in presence of Oin micro-annular chamber

YAN Yun-fei; ZHANG Li; NIU Li-xiang; RAN Jing-yu; TU Wei-feng

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Numerical investigation on characteristics of CH/HO/COreforming reaction in presence of Oin micro-annular chamber

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- Numerical investigation on characteristics of CH/HO/COreforming reaction in presence of Oin micro-annular chamber
- Vol. 27, Issue 3, Pages: 551-559(2012)
- 作者机构：
  
  1. 重庆大学低品位能源利用技术及系统教育部重点实验室,重庆,400030
  2. 重庆大学动力工程学院,重庆,400030
- 作者简介：
- 基金信息：
- DOI：
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- Published：2012
- 稿件说明：
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闫云飞, 张力, 牛立祥, 冉景煜, 涂维峰. 微环形腔内有氧条件下CH4/H2O/CO2催化重整反应特性数值研究[J]. 航空动力学报, 2012, 27(3): 551-559.

YAN Yun-fei, ZHANG Li, NIU Li-xiang, et al. Numerical investigation on characteristics of CH/HO/COreforming reaction in presence of Oin micro-annular chamber[J]. 2012, 27(3): 551-559.
闫云飞, 张力, 牛立祥, 冉景煜, 涂维峰. 微环形腔内有氧条件下CH4/H2O/CO2催化重整反应特性数值研究[J]. 航空动力学报, 2012, 27(3): 551-559. DOI：

YAN Yun-fei, ZHANG Li, NIU Li-xiang, et al. Numerical investigation on characteristics of CH/HO/COreforming reaction in presence of Oin micro-annular chamber[J]. 2012, 27(3): 551-559. DOI：

摘要

基于表面反应详细机理

数值研究了微环形腔内有氧条件下

组分、温度、质量流量对甲烷/水/二氧化碳催化重整反应特性的影响.结果表明:低温下

增大水的含量可提高产氢量

而增大二氧化碳含量对产氢量无明显影响.增大二氧化碳或水的含量

可提高甲烷转化率.低温下二氧化碳、水等组分的改变对甲烷重整反应的影响较小

高温下组分的影响增强.质量流量增大

出口氢气、一氧化碳质量分数和甲烷转化率明显降低.高流量下加入水或二氧化碳对甲烷转化率的影响已不再明显.当水(二氧化碳)作为产物时

质量流量的增大对其影响并不大;而做为反应物时

质量流量增大

使出口处水(二氧化碳)的质量分数升高.

Abstract

The effect of component

temperature and flow on characteristic of methane/steam/carbon dioxide reforming reaction in the presence of oxygen in micro-annular chamber was numerically simulated using the surface elementary reaction mechanism.The results indicate that the effect of steam on the yields of H2 is obvious but the effect of carbon dioxide is inconspicuous at low temperature.Increasing the content of steam (carbon dioxide) can improve the conversion efficiency of methane.As the temperature rises

the effect of steam (carbon dioxide) component on the characteristic of reforming reaction becomes more obvious.The content of hydrogen (carbon monoxide) and the conversion efficiency of methane at outlets obviously decrease with increasing flow rate.The effect of steam (carbon dioxide) on the conversion efficiency of methane becomes is no longer obvious at high flow rate.As a product of the reaction

the content of steam (carbon dioxide) at outlets maintains unchanged with increasing flow rate.On the contrary

as a reactant of the reaction

the content of steam (carbon dioxide) at outlets increases with increasing flow rate.

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