Investigation of solid oxide fuel cell operation with synthetic biomass gasification product gases as a basis for enhancing its performance

G. Pongratz*, V. Subotić, H. Schroettner, B. Stoeckl, C. Hochenauer, A. Anca-Couce, R. Scharler

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikel

Abstract

Solid oxide fuel cells represent a promising technology to increase the electrical efficiency of biomass-based combined-heat-power systems in comparison to state-of-the-art gas engines, additionally providing high temperature heat. To identify favorable fuel gas compositions for an efficient coupling with gasifiers at low degradation risk is of major importance to ensure stability, reliability, and durability of the systems used, thus increasing attractiveness of electricity production from biomass. Therefore, this study presents a comprehensive analysis on the influence of main gas components from biomass gasification on the performance and efficiency of a cell relevant for real application. An industrial-size electrolyte supported single cell with nickel/gadolinium-doped ceria anode was selected showing high potential for gasifier-solid oxide fuel cell systems. Beneficial gas component ratios enhancing the power output and electric efficiency are proposed based on the experimental study performed. Furthermore, the degradation stability of a SOFC fueled with a synthetic product gas representing steam gasification of woody biomass was investigated. After 500 h of operation under load at a steam-to-carbon ratio of 2.25 in the fuel gas, no performance or anode degradation could be detected.
Originalspracheenglisch
Seiten (von - bis)121-139
Seitenumfang19
FachzeitschriftBiomass Conversion and Biorefinery
Jahrgang11
Ausgabenummer1
Frühes Online-Datum16 Apr 2020
DOIs
PublikationsstatusVeröffentlicht - Feb 2021

ASJC Scopus subject areas

  • !!Renewable Energy, Sustainability and the Environment

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