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A method for characterizing the high-pressure CO2 adsorption kinetics of potassium-modified hydrotalcite at elevated temperatures based on a modified static bed is proposed. The pressure drop of the adsorption tube with time was measured by a series of high-sensitivity pressure sensors to calculate the CO2 adsorption curves of the adsorbent. The concept of a hot/cold spot is introduced to eliminate...
Methane and carbon dioxide are two major components in many biomass-derived gases such as landfill gas and biogas, which are renewable and have potential fuel cell applications. Syngas production from non-catalytic and fuel-rich combustion using a two-layer porous media burner was studied experimentally and numerically with a range of CO2 content in the CH4 fuel. With an air flow rate of 5L/min, an...
The pure SnO2 and rare earth metal (Y and La)-doped SnO2 were synthesized using a co-precipitation method for the simultaneous removal of COS and H2S from hot syngas at 350°C. The pure SnO2 sorbent exhibited a poor catalytic hydrolysis effect for COS conversion at moderate temperatures of 300–400°C due to the formation of SnS during the desulfurization. SnS caused a decrease in the COS conversion...
The dielectric characteristics of the solid fuels have close relation with gasification process. Electrochemical impedance spectroscopy (EIS), is applied for measuring the dielectric characteristics of solid carbon fuels in catalytic and non-catalytic gasification systems. Compared with kinetic experiments at different gasification temperatures (775, 800 and 825°C) for both catalytic and non-catalytic...
A direct carbon solid oxide fuel cell (DC-SOFC) with liquid metallic antimony (Sb) anode was assembled. This type of DC-SOFC provides a new way to utilize coal in a both efficient and clean way. The intrinsic reaction kinetics of the liquid Sb anode was closely observed and analyzed without the presence of fuel, and a promotion of cell performance derived from cell discharging was discovered. Then...
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