Steam reforming of methane in metal-foam filled reactor

Du, Y, Zhao, C and Zhu, Y 2014, 'Steam reforming of methane in metal-foam filled reactor', in Harun Chowdhury, Firoz Alam (ed.) Proceedings of the 19th Australasian Fluid Mechanics Conference 2014 Australasian Fluid Mechanics Society (AFMS 2014), Melbourne, Australia, 8-11 December 2014, pp. 1-4.


Document type: Conference Paper
Collection: Conference Papers

Title Steam reforming of methane in metal-foam filled reactor
Author(s) Du, Y
Zhao, C
Zhu, Y
Year 2014
Conference name Australasian Fluid Mechanics Conference 2014 Australasian Fluid Mechanics Society (AFMS 2014)
Conference location Melbourne, Australia
Conference dates 8-11 December 2014
Proceedings title Proceedings of the 19th Australasian Fluid Mechanics Conference 2014 Australasian Fluid Mechanics Society (AFMS 2014)
Editor(s) Harun Chowdhury, Firoz Alam
Publisher Australasian Fluid Mechanics Society (AFMS)
Place of publication Melbourne, Australia
Start page 1
End page 4
Total pages 4
Abstract As a unique porous media, open-cell metal foams with high porosity, high specific surface area and strong heat transfer capability is highly potential to be used to increase the conversion rate of methane to hydrogen. Steam reforming of methane in metal-foam filled reactor was studied in this paper. An innovative chemistry model was developed in which the reactive rate J and volume expanding rate δ were associated with partial pressure, density and concentration in the chemical reactions. While reactive heat addition and mass diffusion were considered as inner thermal sources in the temperature equation for fluid. The methane conversion rate and distribution of fluid temperature were investigated. It was found that metal foams improved the conversion by its higher thermal conductivity of solid matrix, bigger cell size and smaller cell ligament diameter. It was demonstrated that higher average temperature along the flow direction is caused by metal foams. The peak sectionaverage temperature of fluid appeared close to the entrance of the reactor and increased simultaneously with the increasing of conversion of methane to hydrogen. It is explained that moving of the chemical equilibrium of steam reforming was due to better endothermic reaction and longer contacting time of amount of substance with metal-foam filled in the reactor.
Subjects Mechanical Engineering not elsewhere classified
Keyword(s) Diffusion in liquids
Fluid mechanics
Foams
Heat transfer
Metals
Methane
Porous materials
Reforming reactions
Thermal conductivity
Copyright notice © AFMS 2014
ISBN 9780646596952
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