Szczegóły publikacji

Opis bibliograficzny

Autorzy (10)

• AGHDudek Magdalena
• AGHAdamczyk Bartosz
• AGHSitarz Maciej
• Śliwa Michał
• AGHLach Radosław
• Skrzypkiewicz Marek
• AGHRaźniak Andrzej
• AGHZiąbka Magdalena
• Zuwała Jarosław
• AGHGrzywacz Przemysław

Słowa kluczowe

Dane bibliometryczne

ID BaDAP	116799
Data dodania do BaDAP	2018-09-27
Tekst źródłowy	URL
DOI	10.1016/j.biombioe.2018.09.026
Rok publikacji	2018
Typ publikacji	artykuł w czasopiśmie
Otwarty dostęp
Czasopismo/seria	Biomass & Bioenergy

Abstract

Raw and charred walnut shells were investigated as solid fuels in direct carbon solid fuel cells operating within the temperature range 600–850 °C. Char was prepared by means of thermal processing of pulverised shells in a quartz reactor within a temperature range of 400–850 °C. Elemental analysis identified high carbon and marginally low sulphur contents in char obtained from biomass-derived solid waste. With increased temperatures, a greater degree of carbonisation of raw material was observed in the char, along with reduced sulphur and hydrogen contents. XRD and Raman spectroscopy investigations showed that the char samples were characterised by a disordered carbon structure. The particles were characterised by the presence of smaller isometric particles as well as a porous structure. Thermogravimetric analysis performed in a pure CO2 gas atmosphere within a temperature range of 25–850 °C demonstrated a substantial loss of mass due to CO production via the Boudouard reaction. Tests showed that DC-SOFCs supplied by char obtained from walnut shells were characterised by stable operation with reasonably satisfactory levels of current and power density. A significant improvement was noted in the performance of a DC-SOFC supplied by all forms of char when CO2, as opposed to N2, was used as the shielding gas in the anode chamber.

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