Effects of low hydrocarbons on the solid oxide fuel cell anode

Title
Effects of low hydrocarbons on the solid oxide fuel cell anode
Authors
윤상호김용민김선영배중면
Keywords
Solid oxide fuel cell (SOFC); Carbon deposition; Diesel reformate; Ethylene (C2H4); Post-reforming
Issue Date
2010-10
Publisher
Journal of solid state electrochemistry
Citation
VOL 14, NO 10, 1793-1800
Abstract
In this work, the effects of ethylene on the solid oxide fuel cell (SOFC) anode were investigated both for an SOFC single cell and an SOFC stack. Two fuels were used to observe the effects that low hydrocarbons (over C1- hydrocarbons) in the reformate gas stream have on the SOFC anode. Methane or ethylene was supplied to the electrolyte-supported SOFC anode. Using ethylene as a fuel, catastrophic degradation of SOFC performance was observed due to ethylene-induced carbon deposition onto the SOFC anode. Thus, a new methodology, termed “postreforming,” is introduced for the removal of low hydrocarbons (over C1-hydrocarbons) from the reformate gas stream. The CGO-Ru catalyst was selected as the postreforming catalyst because of its high selectivity for removing low hydrocarbons (over C1-hydrocarbons) and for its long-term stability. The diesel reformer and postreformer were continuously operated for ∼250 h in coupledoperation mode. The reforming performance was not degraded, and low hydrocarbons (over C1-hydrocarbons) in the diesel reformate were completely removed.
URI
http://pubs.kist.re.kr/handle/201004/41884
ISSN
1432-8488
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KIST Publication > Article
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