The impact of physicochemical properties of coal on direct carbon solid oxide fuel cells
PBN-AR
Instytucja
Wydział Inżynierii Materiałowej i Ceramiki (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
International Journal of Hydrogen Energy
ISSN
0360-3199
EISSN
1879-3487
Wydawca
Pergamon-Elsevier Science Ltd.
DOI
Rok publikacji
2016
Numer zeszytu
41
Strony od-do
18872--18883
Numer tomu
41
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.85
Autorzy
(liczba autorów: 6)
Pozostali autorzy
+ 4
Autorzy przekładu
(liczba autorów przekładu: 0)
Słowa kluczowe
EN
coal
solid oxide fuel cell
kaolinite
silica
Streszczenia
Język
EN
Treść
Two different coals were investigated, both before and after purification with inorganic acids, as solid fuels in a direct carbon solid oxide fuel cell (DC-SOFC). Prior to electrochemical investigations, elemental and technical analyses of both raw and purified coal samples were performed. It was found that the applied purification process considerably reduced the total amount of sulphur and mineral matter in the investigated coals. The phase composition of mineral matter in ash was also analysed, using the X-ray diffraction method as well as infrared spectroscopy. The reactivity of these coals in a CO2 atmosphere was investigated. It was found that the purified coal samples exhibited greater chemical reactivity than pure carbon black samples. The electrochemical oxidation of the raw and purified coal samples was investigated at a temperature range of 600e850 C on the surface of an 8YSZ electrolyte. Lower values of current density and power were acquired from a DC-SOFC supplied with powdered coal containing higher amounts (8 wt.%) of mineral matter compared to coal with 4 wt.%. It was found that negative impact of silica and kaolinite contained in the former sample exceeded that expected from a sample containing 6 wt% of mineral matter on the process of electrochemical oxidation on the 8YSZ and NiYSZ surface. An improvement was observed in the performance of a DC-SOFC with a Ni-YSZ anode due to the presence of additional CO from the gasification of coals within the DC-SOFC. © 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:101591
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