Purified high-sulfur coal as a fuel for direct carbon solid oxide fuel cells
MetadataShow full item record
© 2018 John Wiley & Sons, Ltd. The use of low-rank coal in a clean and efficient manner is a major challenge facing the current coal technology. A high-sulfur coal with 4.5 wt% sulfur is chosen to examine the compatibility of the pristine coal and the purified contrast with a solid oxide fuel cell (SOFC) with nickel cermet anodes. Desulfurization of the pristine coal is performed by molten caustic leaching method with a removal ratio of 80%. Analyses of the physicochemical properties of coal samples indicate that the purified coal has a more favorable structure and higher Boudouard reactivity, which is suitable as a fuel for fuel cells. The assessment of electrochemical performance reveals that the purification treatment not only makes the peak power density of SOFCs improve from 115 to 221 mW cm -2 at 900°C but also extends their durability from 1.7 to 11.2 hours under a current density of 50 mA cm -2 at 850°C with a fuel availability increasing from 6.25% to 40%. The postmortem analyses show that far less deposited carbon and nickel sulfide are observed on the anode surface. The fuel-based investigation reveals that the purified coal is a promising fuel for direct carbon fuel cells.
Showing items related by title, author, creator and subject.
Structurally modified coal char as a fuel for solid oxide-based carbon fuel cells with improved performanceJiao, Y.; Zhao, J.; An, W.; Zhang, L.; Sha, Y.; Yang, G.; Shao, Zongping; Zhu, Z.; Li, S. (2015)Solid oxide-based carbon fuel cells (SO-CFCs) are promising devices for power generation from solid carbon with high efficiency and low emissions. Coal char is one of the most important carbon-based fuels with high ...
In situ catalyzed Boudouard reaction of coal char for solid oxide-based carbon fuel cells with improved performanceJiao, Y.; Tian, W.; Chen, H.; Shi, H.; Yang, B.; Li, C.; Shao, Zongping; Zhu, Z.; Li, S. (2015)© 2014 Elsevier Ltd. The use of industrial coal char as a fuel source for an anode-supported solid oxide-based carbon fuel cell (SO-CFC) with a yttrium-stabilized zirconia electrolyte and La0.8Sr0.2MnO3 cathode was ...
Abdullah, Hanisom binti (2010)Mallee biomass is considered to be a second-generation renewable feedstock in Australia and will play an important role in bioenergy development in Australia. Its production is of large-scale, low cost, small carbon ...