Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Journal articles
  4. Comparison and optimization of different fuel processing options for biogas-fed solid-oxide fuel cell plants
 
research article

Comparison and optimization of different fuel processing options for biogas-fed solid-oxide fuel cell plants

Ma, Shuai
•
Loreti, Gabriele
•
Wang, Ligang
Show more
January 1, 2022
International Journal Of Hydrogen Energy

The biogas needs to be reformed before electro-chemical conversion in the solid-oxide fuel cell, which can be promoted efficiently with wise thermal management and reforming conditions. To ensure the system safety and catalysts durability, additional mineral- bearing water and carbon deposition should be avoided. This paper conducted a detailed biogas-SOFC CHP system analysis considering four layouts, featuring hot and cold recirculation of the anode off-gas, partial oxidation and complete internal reforming. The process optimization and sensitivity analysis are performed with the design variables including the recirculation ratio, and external reformer temperature. The anode supported SOFC operates at 800 degrees C and 0.4 A/cm(2) current density. The results show that pre-reforming with hot recirculation and cold recirculation schemes achieve the highest system efficiency between 56% and 63%. The pre-reforming with hot recirculation scheme has a broader self-sufficient water range eliminating the carbon deposition risk at the recirculation ratio of 42-78% and reforming temperature of 400-650 degrees C. The no pre-reforming with hot recirculation scheme achieves maximum system efficiency of 58% due to the fuel dilution. Moreover, the partial oxidation with hot recirculation scheme maximum efficiency is limited to 58.9%, given that the partial oxidation reaction is less efficient than steam and dry reforming reactions. The proposed system layout could demonstrate the feasibility of biogas-SOFC with different reforming options especially on small scale with high efficiency and optimal thermal integration opportunities. (C) 2021 The Author(s). Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.

  • Details
  • Metrics
Type
research article
DOI
10.1016/j.ijhydene.2021.10.025
Web of Science ID

WOS:000735939000002

Author(s)
Ma, Shuai
Loreti, Gabriele
Wang, Ligang
Marechal, Francois  
Van Herle, Jan  
Dong, Changqing
Date Issued

2022-01-01

Publisher

PERGAMON-ELSEVIER SCIENCE LTD

Published in
International Journal Of Hydrogen Energy
Volume

47

Issue

1

Start page

551

End page

564

Subjects

Chemistry, Physical

•

Electrochemistry

•

Energy & Fuels

•

Chemistry

•

biogas reforming

•

solid oxide fuel cell

•

dry reforming

•

partial oxidation

•

carbon deposition

•

off-gas recirculation

•

power-to-methane

•

combined heat

•

sofc system

•

thermodynamic analysis

•

design

•

steam

•

co2

•

electrolysis

•

performance

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
SCI-STI-FM  
Available on Infoscience
January 31, 2022
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/184935
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés