Modelling of SOEC-FT reactor: Pressure effects on methanation process

Bin Chen; Haoran Xu; Meng Ni

doi:10.1016/j.apenergy.2016.10.095

Modelling of SOEC-FT reactor: Pressure effects on methanation process

Bin Chen, Haoran Xu, Meng Ni

Research output: Journal article publication › Journal article › Academic research › peer-review

77 Citations (Scopus)

Abstract

Governing equations for mass, momentum, charge transport are solved with Finite Element Method. The chemical reaction kinetics of reversible water gas shift reaction and reversible methanation reaction in Ni/YSZ cathode are fully considered. The model is validated by comparing simulation results with experimental data. Parametric simulations are conducted to understand the physical-chemical processes in the reactor with a focus on the pressure effect. It is predicted that the optimal operating pressure is around 3 bar, beyond which the CH4conversion ratio (2.5 times enhanced than 1 bar operating) cannot be further increased. It is also found that it is feasible to operate the pressurized SOEC at a lower temperature for CH4production with improved catalyst activity.

Original language	English
Pages (from-to)	814-824
Number of pages	11
Journal	Applied Energy
Volume	185
DOIs	https://doi.org/10.1016/j.apenergy.2016.10.095
Publication status	Published - 1 Jan 2017

Keywords

Fischer-Tropsch process
Methane synthesis
Pressurized reactor
Solid oxide electrolysis cell
Solid oxide fuel cell

ASJC Scopus subject areas

Civil and Structural Engineering
Building and Construction
General Energy
Mechanical Engineering
Management, Monitoring, Policy and Law

More information

10.1016/j.apenergy.2016.10.095

http://hdl.handle.net/10397/95912

Cite this

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title = "Modelling of SOEC-FT reactor: Pressure effects on methanation process",

abstract = "Governing equations for mass, momentum, charge transport are solved with Finite Element Method. The chemical reaction kinetics of reversible water gas shift reaction and reversible methanation reaction in Ni/YSZ cathode are fully considered. The model is validated by comparing simulation results with experimental data. Parametric simulations are conducted to understand the physical-chemical processes in the reactor with a focus on the pressure effect. It is predicted that the optimal operating pressure is around 3 bar, beyond which the CH4conversion ratio (2.5 times enhanced than 1 bar operating) cannot be further increased. It is also found that it is feasible to operate the pressurized SOEC at a lower temperature for CH4production with improved catalyst activity.",

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AU - Xu, Haoran

AU - Ni, Meng

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N2 - Governing equations for mass, momentum, charge transport are solved with Finite Element Method. The chemical reaction kinetics of reversible water gas shift reaction and reversible methanation reaction in Ni/YSZ cathode are fully considered. The model is validated by comparing simulation results with experimental data. Parametric simulations are conducted to understand the physical-chemical processes in the reactor with a focus on the pressure effect. It is predicted that the optimal operating pressure is around 3 bar, beyond which the CH4conversion ratio (2.5 times enhanced than 1 bar operating) cannot be further increased. It is also found that it is feasible to operate the pressurized SOEC at a lower temperature for CH4production with improved catalyst activity.

AB - Governing equations for mass, momentum, charge transport are solved with Finite Element Method. The chemical reaction kinetics of reversible water gas shift reaction and reversible methanation reaction in Ni/YSZ cathode are fully considered. The model is validated by comparing simulation results with experimental data. Parametric simulations are conducted to understand the physical-chemical processes in the reactor with a focus on the pressure effect. It is predicted that the optimal operating pressure is around 3 bar, beyond which the CH4conversion ratio (2.5 times enhanced than 1 bar operating) cannot be further increased. It is also found that it is feasible to operate the pressurized SOEC at a lower temperature for CH4production with improved catalyst activity.

KW - Fischer-Tropsch process

KW - Methane synthesis

KW - Pressurized reactor

KW - Solid oxide electrolysis cell

KW - Solid oxide fuel cell

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DO - 10.1016/j.apenergy.2016.10.095

M3 - Journal article

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VL - 185

SP - 814

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JO - Applied Energy

JF - Applied Energy

ER -

Modelling of SOEC-FT reactor: Pressure effects on methanation process

Abstract

Keywords

ASJC Scopus subject areas

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