Development of paper-structured catalyst for application to direct internal reforming solid oxide fuel cell fueled by biogas

Nguyen, Thi Giang Huong; Sakamoto, Mio; Uchida, Tomomi; Doan, Tin Chanh Duc; Dang, Chien Mau; Tu, Phuc Hoan; Sasaki, Kazunari; Shiratori, Yusuke

doi:10.1016/j.ijhydene.2019.02.134

Cited by 23 publications

(8 citation statements)

References 45 publications

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“…That is, even though the H2 concentration in the reformed mixture decreases, when the steam to carbon ratio increases, the hydrogen production is higher because more hydrogen is added to the process in the form of steam (H2O) [8], [24]. The author confirmed the results of the experiment by analyzing the amount of hydrogen produced in relation to the amount of methane consumed in the fuel reforming process [25]. The results of this experiment can be seen in Table 1.…”

Section: Introductionmentioning

confidence: 60%

“…The internal steam reforming process in this paper aims to produce the largest amount of hydrogen (H2) for the fuel cell electrochemical reaction. According to literature [25], [26], it was shown in an experiment that the larger the steam to carbon (S/C) ratio, the larger the mass flow rate of hydrogen present in the reformed fuel for the same mass flow rate of methane introduced in the process. Several publications [7], [17], [21]- [26] recommend the use of a steam to carbon ratio of 1.5 to 5 to avoid carbon deposits.…”

Section: Steam To Carbon Ratementioning

confidence: 99%

“…The variation of Gibbs free energy can be calculated from the enthalpies of formation and entropies at a given temperature, as shown in (24). The electrochemical reactions of the variation of enthalpies of formation are described in (25) and (26), while the variation of entropies is shown in ( 27) and (28). Enthalpy, (29), and entropy, (30), vary with temperature.…”

Section: Fuel Cell Performancementioning

confidence: 99%

“…In the literature, several authors recommend the use of a steam to carbon ratio of 1.5 to 5 to avoid carbon deposits. In a study [24], [25] to analyze the molar fractions of biogas steam reforming products at three different steams to carbon ratios (S/C=2, 3, and 4), it was found that the H2 concentration is inversely proportional to the steam to carbon ratio, while the mass flow rate is directly proportional to the steam to carbon ratio. That is, even though the H2 concentration in the reformed mixture decreases, when the steam to carbon ratio increases, the hydrogen production is higher because more hydrogen is added to the process in the form of steam (H2O) [8], [24].…”

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling of a solid oxide fuel cell operating on biogas

2021

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Solid oxide fuel cells (SOFC) are the most efficient devices for directly converting the chemical energy of a fuel into electrical energy. This is one of the main reasons why these fuel cells have received a lot of attention from the scientific community and from several developers who have invested in the use of this technology in various applications. Biogas is one of the products of anaerobic decomposition (absence of gaseous oxygen) of organic matter, which occurs due to the action of certain types of bacteria. Biogas is mainly composed of methane (CH4) and carbon dioxide (CO2) and its use in solid oxide fuel cells has been investigated since Biogas is a renewable biofuel. The aim of this paper was to perform mathematical modeling of a solid oxide fuel cell operating on biogas. The results confirmed that the overall efficiency of the system is above 94% and the largest irreversibilities of the system are related to heat exchangers.

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Section: Introductionmentioning

confidence: 60%

Section: Steam To Carbon Ratementioning

confidence: 99%

Section: Fuel Cell Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Mathematical modeling of a solid oxide fuel cell operating on biogas

2021

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“…Methane can be effectively reformed into hydrogen and CO in situ with catalysis of the catalyst layer loaded on the anode. Proton conducting materials [148], perovskites [146], transition metals [154] and transition metal oxides [156] are selected to catalyze the direct inner dry reform process. In addition, adding a certain amount of N 2 into the fuel gas can obviously improve the stability of the SOFC [149] .…”

Section: Solid Oxide Fuel Cellmentioning

confidence: 99%

Lignocellulosic biomass as sustainable feedstock and materials for power generation and energy storage

Wang

Ouyang

Zhou

et al. 2021

Journal of Energy Chemistry

265

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Paper‐structured catalyst with a dispersion of ceria‐based oxide support for improving the performance of an SOFC fed with simulated biogas

Tu,

Sakamoto,

Dinh

et al. 2024

Fuel Cells

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Solid oxide fuel cells (SOFCs) can accept a direct feed of biogas for power generation; however, carbon deposition is a major obstacle to their practical application. When a paper‐structured catalyst (PSC) with a dispersion of Ni‐loaded flowerlike Ce0.5Zr0.5O2 (Ni/CZ(F)) was applied to the anode of an electrolyte‐supported cell (ESC), the open‐circuit voltage of the cell directly fed simulated biogas was increased from 0.87 to 0.98 V at 750°C. The rates of cell‐voltage degradation and coke formation of the ESC with the Ni/CZ(F)‐PSC during 100 h of operation were 4.3% kh−1 and 0.43 mg‐C g‐PSC−1 h−1, respectively, which were lower than those of an ESC with a Ni‐loaded PSC without the CZ(F) dispersion (10.4% kh−1 and 8.1 mg‐C g‐PSC−1 h−1, respectively). This performance improvement is attributed to the unique porous morphology and high oxygen storage capacity of CZ(F), which can contribute to the prevention of Ni agglomeration and the removal of coke from the catalyst surface, respectively. Thus, the Ni/CZ(F)‐PSC can function as a practically applicable reforming domain for an internal‐reforming biogas‐fueled SOFC.

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Development of paper-structured catalyst for application to direct internal reforming solid oxide fuel cell fueled by biogas

Cited by 23 publications

References 45 publications

Mathematical modeling of a solid oxide fuel cell operating on biogas

Mathematical modeling of a solid oxide fuel cell operating on biogas

Lignocellulosic biomass as sustainable feedstock and materials for power generation and energy storage

Paper‐structured catalyst with a dispersion of ceria‐based oxide support for improving the performance of an SOFC fed with simulated biogas

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