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

Bin Chen, Haoran Xu, Meng Ni

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 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 languageEnglish
Pages (from-to)814-824
Number of pages11
JournalApplied Energy
Volume185
DOIs
Publication statusPublished - 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
  • Energy(all)
  • Mechanical Engineering
  • Management, Monitoring, Policy and Law

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