Effect of K, Na and Ca-based catalysts on the steam gasification reactions of coal. Part II: Composition and amount of multi-component catalysts

The comprehensive results regarding the physicochemical properties of carbonaceous materials that are obtained from pistachio shells support their usage as solid fuels to supply direct carbon solid oxide fuel cells (DC-SOFCs). The influence of preparation conditions on variations in the chemical composition, morphology of the biochar powders, and degree of graphitization of carbonaceous materials were investigated. Based on structural investigations (X-ray diffraction analysis and Raman spectroscopy), it was observed that disordered carbon particles developed during the application of thermal treatments. The use of X-ray fluorescence enabled a comparative analysis of the chemical composition of the inorganic matter in biocarbon-based samples. Additionally, the gasification of carbonaceous-based samples vs. time at a temperature of 850 °C was investigated in a H2O or CO2 gas atmosphere. The analysis demonstrated the conversion rate of biochar obtained from pistachio shells to H2, CH4 and CO during steam gasification. The electrochemical investigations of the DC-SOFCs that were supplied with biochars obtained from pistachio shells were characterized by satisfactory values for the current and power densities at a temperature range of 700–850 °C. However, a higher power output of the DC-SOFCs was observed when CO2 was introduced to the anode chamber. Therefore, the impact of the Boudouard reaction on the performance of DC-SOFCs was confirmed. The chars that were prepared from pistachio shells were adequate for solid fuels for utilization in DC–SOFCs.

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“…This method was previously used to study the gasification of coal samples. The description of the apparatus was described in papers [30][31][32].…”

Section: Thermal Behaviour Of Pistachio Shells Investigated Using a Thermal Analysismentioning

confidence: 99%

The Utilisation of Solid Fuels Derived from Waste Pistachio Shells in Direct Carbon Solid Oxide Fuel Cells

et al. 2021

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Molten salt-modified CaO catalyzed CO2 gasification of biochar: reactivity and structural evolution

Chen,

Ma,

Zhang

et al. 2024

Biomass Conv. Bioref.

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Recent progress in the gasification reaction behavior of coal char under unconventional combustion modes

Zhang

Zhao

Zhang

2023

Applied Thermal Engineering

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Effect of K, Na and Ca-based catalysts on the steam gasification reactions of coal. Part II: Composition and amount of multi-component catalysts

Cited by 12 publications

References 39 publications

The Utilisation of Solid Fuels Derived from Waste Pistachio Shells in Direct Carbon Solid Oxide Fuel Cells

The Utilisation of Solid Fuels Derived from Waste Pistachio Shells in Direct Carbon Solid Oxide Fuel Cells

Molten salt-modified CaO catalyzed CO2 gasification of biochar: reactivity and structural evolution

Recent progress in the gasification reaction behavior of coal char under unconventional combustion modes

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