Abstract
The paper presents a mathematical model of a molten carbonate fuel cell with a catalyst in the anode channel. The modeled system is fueled by methane. The system includes a model of the steam reforming process occurring in the anode channel of the MCFC fuel cell and the model of the cell itself. A reduced order model was used to describe the operation of the molten carbonate fuel cell, whereas a kinetic model describes the methane steam reforming. The calculations of the reforming were done in Aspen HYSYS software. Four values of the steam-to-carbon ratio (2.0, 2.5, 3.0, and 3.5) were used to analyze the performance of the reforming process. In the first phase, the reaction kinetics model was based on data from the literature.
Highlights
The authors of the article have previously conducted work related to modeling the reforming process
Reaction rate k and temperature are related by the Arrhenius equation: The chemical reaction kinetics coefficients used in the Aspen HY
The chemical reaction kinetics coefficients used in the Aspen HYSYS program to build Chemical
Summary
The authors of the article have previously conducted work related to modeling the reforming process. Methanol is the simplest alcohol, containing only one carbon element; its reforming occurs at around 200–300 ◦ C, while sufficient steam-to-carbon ratio begins at 2:1 [23], and its effectiveness depends strongly on the temperature and the catalyst applied [24]. Compounds containing more carbon elements, like propanol [29,30,31,32], butanol [33,34,35], glycerol [36,37,38,39,40,41], etc., during steam reforming are broken down to simpler structures (ethanol, methanol, methane, carbon oxide, carbon dioxide), and after that the same processes occur as long as the final form is hydrogen and carbon dioxide. The reforming process of the catalyst located in the anode channel of the fuel cell has not been described
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