Journal
RENEWABLE ENERGY
Volume 158, Issue -, Pages 410-420Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.renene.2020.05.082
Keywords
Carbon fuel; Direct carbon solid oxide fuel cell; Efficient use; Waste carton
Funding
- National Natural Science Foundation of China [21773048, 51872067]
- National Program on Key Research and Development Project of China [2018YFB1502202]
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The rapid development of express logistics industry has yielded more carton wastes, how to utilize them as resources has become an important issue in recent years. In this paper, effective and multifunctional applications of waste carton are explored to obtain products of solid carbon fuel and tar via pyrolysis process. Solid carbon derived from waste carton is utilized as fuel for direct carbon solid oxide fuel cells (DC-SOFCs) with the symmetric perovskite La0.3Sr0.7Fe0.7Ti0.3O3-delta electrodes and scandium stabilized zirconia electrolyte for power generation. The maximum output performance of this DC-SOFC is up to 307.8 mW cm-2 at 850 degrees C. The cell fueled by 0.2 g carbonated waste carton is operated at constant resistance discharging mode of 20 Omega, and 5.8 h discharging with a capacity of 658 C is represented. Ash of the carton fuel is collected after operation. Infrared spectrum and surface-enhanced Raman spectrum are employed to characterize tar from pyrolysis, and they show that tar contains many organic matters with a potential to be used as chemical raw materials. Energy dispersive spectroscopy and X-ray diffraction results show various inorganic salts and oxides in the ash, it means that the ash may be a promising candidate for fertilizer. (C) 2020 Elsevier Ltd. All rights reserved.
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