全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
化工进展  2015 

甲烷二氧化碳重整制合成气中积炭效应的数值模拟

DOI: 10.16085/j.issn.1000-6613.2015.10.017

Keywords: 甲烷二氧化碳重整,积炭,孔隙率,数值模拟

Full-Text   Cite this paper   Add to My Lib

Abstract:

通过建立包含动量、质量传递以及化学反应动力学方程的多物理场耦合数值模型,对以Ni为催化剂的甲烷二氧化碳重整制合成气过程中的积炭效应展开了计算。计算结果阐明了包含多孔介质催化剂段的反应通道中的速度场及压力分布,以及在通道中随气体流动以及沉积在催化剂表面的碳颗粒的浓度分布,分析了积炭对催化剂孔隙率和渗透率的影响,并进一步讨论了甲烷浓度以及温度对积炭产生的影响,最后提出了消减积炭的方法。本文的结论对于进一步研究Ni基催化剂在CH4-CO2重整制合成气反应中积炭效应的消减有一定的指导意义。

References

[1]  Sun Y,Ritchie T,McEvoy S,et al. Thermodynamic analysis of mixed and dry reforming of methane for solar thermal applications[J]. Journal of Natural Gas Chemistry,2011,20:568-576.
[2]  Godinia H R,Xiao S,Kim M,et al. Dual-membrane reactor for methane oxidative coupling and dry methane reforming:Reactor integration and process intensification[J]. Chemical Engineering and Processing:Process Intensification,2013,74:153- 164.
[3]  Farniaei M,Abbasi M,Rahnama H,et al. Syngas production in a novel methane dry reformer by utilizing of tri-reforming process for energy supplying:Modeling and simulation[J]. Journal of Natural Gas Science and Engineering,2014,20:99-108.
[4]  Al-Ali K,Kodama S,Sekiguchi H. Modeling and simulation of methane dry reforming in direct-contact bubble reactor[J]. Solar Energy,2014,102:45-55.
[5]  Wood D A,Nwaoha C,Towler B F. Gas-to-liquids (GTL):A review of an industry offering several routes for monetizing natural gas[J]. Journal of Natural Gas Science and Engineering,2012,9:196-208.
[6]  Akbari M H,Ardakani A H S,Tadbir M A. A micro-reactor modeling analysis and optimization for methane autothermal reforming in fuel cell applications[J]. Chemical Engineering Journal,2011,166:1116-1125.
[7]  Walker D M,Pettit S L,Wolan J T,et al. Synthesis gas production to desired hydrogen to carbon monoxide ratios by tri-reforming of methane using Ni-MgO-(Ce,Zr)O2 catalysts[J]. Applied Catalysis A:General,2012,445-446:61-68.
[8]  Behroozsarand A,Pour A N. Modeling of microreactor for methane dry reforming:Comparison of Langmuir-Hinshelwood kinetic and microkinetic models[J]. Journal of Natural Gas Science and Engineering,2014,20:99-108.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133