Overview of SOFC Anode Interactions with Coal Gas Impurities

Journal Article · Tue Aug 11 00:00:00 EDT 2009 · ECS Transactions, 26(1):363-370

DOI:https://doi.org/10.1149/1.3429009· OSTI ID:989042

Marina, Olga A; Pederson, Larry R; Gemmen, Randall; Gerdes, Kirk; Finklea, Harry; Celik, Ismail B

Efficiencies greater than 50 percent (higher heating value) have been projected for solid oxide fuel cell (SOFC) systems fueled with gasified coal, even with carbon sequestration. Multiple minor and trace components are present in coal that could affect fuel cell performance, however, which vary widely depending on coal origin and type. Minor and trace components have been classified into three groups: elements with low volatility that are likely to remain in the ash, elements that will partition between solid and gas phases, and highly volatile elements that are unlikely to condense. Those in the second group are of most concern. In the following, an overview of the results of SOFC anode interactions with phosphorus, arsenic, selenium, sulfur, antimony, and hydrogen chloride as single contaminants or in combinations is discussed. Tests were performed using both anode- and electrolyte-supported cells in synthetic coal gas. The ultimate purpose of this work is to establish maximum permissible concentrations for impurities in coal gas, to aid in the selection of appropriate coal gas clean-up technologies.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 989042
• Report Number(s): PNNL-SA-67821; AA2530000; TRN: US201019%%251
• Journal Information: ECS Transactions, 26(1):363-370, Vol. 26, Issue 1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
30 DIRECT ENERGY CONVERSION
36 MATERIALS SCIENCE
ANODES
ANTIMONY
ARSENIC
CARBON SEQUESTRATION
COAL
COAL GAS
FUEL CELLS
HEATING
HYDROCHLORIC ACID
IMPURITIES
MAXIMUM PERMISSIBLE CONCENTRATION
ORIGIN
PERFORMANCE
PHOSPHORUS
SELENIUM
SOLID OXIDE FUEL CELLS
SULFUR
VOLATILITY
fuel cell
SOFC
coal gas
impurities
contaminants