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

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

闫云飞^1,2,
张力^1,2,
牛立祥³,
冉景煜^1,2,
涂维峰³

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
3.
重庆大学动力工程学院, 重庆 400030

基金项目: 国家自然科学基金(50906103;50876118)

计量
- 文章访问数: 1590
- HTML浏览量: 72
- PDF量: 444
- 被引次数: 0
出版历程
- 收稿日期: 2011-04-30
- 修回日期: 2011-08-29
- 刊出日期: 2012-03-28

Numerical investigation on characteristics of CH₄/H₂O/CO₂ reforming reaction in presence of O₂ in micro-annular chamber

1.
Key Laboratory of Low-grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education, Chongqing 400030, China
2.
College of Power Engineering, Chongqing University, Chongqing 400030, China
3.
College of Power Engineering, Chongqing University, Chongqing 400030, China

摘要

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.
- 微环形腔 /
- 表面反应 /
- 甲烷 /
- 二氧化碳 /
- 水 /
- 重整特性
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.
- micro-annular chamber /
- surface elementary reaction /
- methane /
- carbon dioxide /
- steam /
- reforming reaction characteristics

HTML

参考文献(14)

[1]	Kuwana K,Tagami N,Mizuno S,et al.Extinction of laminar jet diffusion micro flames[J].Proceedings of the Combustion Institute,2009,32(2):3115- 3121.
[2]	陈俊杰,王谦.氢气/空气预混合微尺度催化燃烧[J].燃烧科学与技术,2010,16(1):51-56. CHEN Junjie,WANG Qian.Catalytic combustion of hydrogen/air mixture inside micro-tube[J].Journal of Combustion Science and Technology,2010,16(1):51-56.(in Chinese)
[3]	CHEN Guanbang,CHAO Yeichin,CHEN Chihpeng.Enhancement of hydrogen reaction in a micro channel by catalyst segmentation[J].International Journal of Hydrogen Energy,2008,33(10):2586-2595.
[4]	张力,闫云飞,李丽仙,等.微型燃烧器内甲烷预混催化燃烧的数值研究[J].化工学报,2009,60(3):627-633. ZHANG Li,YAN Yunfei,LI Lixian,et al.Numerical investigation of premixed catalytic combustion of methane in micro-combustor[J].Journal of Chemical Industry and Engineering,2009,60(3):627-633.(in Chinese)
[5]	Ryi S K,Park J S,Kim D K,et al.Methane steam reforming with a novel catalytic nickel membrane for effective hydrogen production[J].Journal of Membrane Science,2009,339(1-2):189-194.
[6]	周俊虎,汪洋,杨卫娟,等.燃烧器材料的热物理性质对微尺度催化燃烧的影响[J].中国电机工程学报,2010,30(5):11-16. ZHOU Junhu,WANG Yang,YANG Weijuan,et al.Effect of thermal property of materials on micro-scale catalytic combustion for the micro combustor[J].Proceedings of the CSEE,2010,30(5):11-16.(in Chinese)
[7]	蒲舸,牛立祥,冉景煜,等.微细腔内CO₂对CH₄/H₂O重整反应特性研究[J].工程热物理学报,2010,31(2):335-338. PU Ge,NIU Lixiang,RAN Jingyu,et al.Numerical simulation on the characteristics of CH₄-vapor reforming reaction occurring CO₂ in the micro-chamber[J].Journal of Engineering Thermophysics,2010,31(2):335-338.(in Chinese)
[8]	Connor A M,Ross J R H.The effect of O₂ addition on the carbon dioxide reforming of methane over Pt/ZrO₂ catalysts[J].Catal Today,1998,46(2-3):203-210.
[9]	Tomishige K,Kanazawa S,Suzuki K.Effective heat supply from combustion to reforming in methane reforming with CO₂ and O₂:comparison between Ni and Pt catalysts[J].Applied Catalysis A:General,2002,233(1-2):35-44.
[10]	Hoang D L,Chan S H,Ding O L.Kinetic and modeling study of methane steam reforming over sulfide nickel catalyst on a gamma alumina support[J].Chemical Engineering Journal,2005,112:1-11.
[11]	LI Baitao,Watanabe R,Maruyama K.High combustion activity of methane induced by reforming gas over Ni/Al₂O₃ catalysts[J].Applied Catalysis A:General,2005,290:36-45.
[12]	章梓雄,董曾南.黏性流体力学[M].北京:清华大学出版社,1998.
[13]	Janardhanan V M,Deutschmann O.CFD analysis of a solid oxide fuel cell with internal reforming:coupled interactions of transport,heterogeneous catalysis and electrochemical processes[J].Journal of Power Sources,2006,162(2):1192-1202.
[14]	蔡秀兰,林维明.工艺条件对Ni/Al₂O₃和Ni/CeO₂-Al₂O₃催化剂在甲烷自热重整制氢反应中催化性能的影响[J].工业催化,2008,16(5):42-48. CAI Xiulan,LIN Weiming.Effect of process conditions on performance of Ni/Al₂O₃ and Ni/CeO₂-Al₂O₃ catalysts for autothermal reforming of methane[J].Industrial Catalysis,2008,16(5):42-48.(in Chinese)

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 1590
HTML浏览量: 72
PDF量: 444
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

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

计量

Numerical investigation on characteristics of CH₄/H₂O/CO₂ reforming reaction in presence of O₂ in micro-annular chamber

计量

目录

留言板

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

计量

出版历程

Numerical investigation on characteristics of CH4/H2O/CO2 reforming reaction in presence of O2 in micro-annular chamber

计量

出版历程

目录

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

Numerical investigation on characteristics of CH₄/H₂O/CO₂ reforming reaction in presence of O₂ in micro-annular chamber