Intermediate-temperature solid oxide fuel cell employing reformed effective biogas: Power generation and inhibition of carbon deposition

Michihiro Miyake, Makoto Iwami, Kenta Goto, Kazuhito Iwamoto, Koki Morimoto, Makoto Shiraishi, Kenji Takatori, Mizue Takeuchi, Shunsuke Nishimoto, Yoshikazu Kameshima

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A power generation system consisting of an intermediate-temperature solid oxide fuel cell (IT-SOFC) and an external reformer for biogas is developed, and its performance is investigated for advanced use of effective biogas. The IT-SOFC is fueled with syngas produced via biogas reforming, and is successfully operated at 600 and 700 °C using Ni0.8Cu0.2 alloy/gadolinia-doped ceria electrolyte (Ni0.8Cu0.2/GDC) cermet anodes and a LaAlO3 supported-Ni (Ni/LaAlO3) catalyst. The Ni/LaAlO3 catalyst stably exhibits high reforming performance for effective biogas at 800 °C for 27 h, and carbon deposition on the catalyst is prevented. The electrochemical performance of the Ni0.8Cu0.2/GDC cermet anode using syngas fuel possessing a H2:CO ratio of approximately 3:1 is comparable to the performance achieved with H2 fuel; the anode remains stable after 24 h of operation at 700 °C without interruption and is unaffected by carbon deposition.

Original languageEnglish
Pages (from-to)319-324
Number of pages6
JournalJournal of Power Sources
Volume340
DOIs
Publication statusPublished - Feb 1 2017

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Keywords

  • Carbon deposition
  • Effective biogas
  • Intermediate-temperature solid oxide fuel cell
  • Ni-Cu alloy/electrolyte cermet anode
  • Reforming catalyst

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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