Methane pyrolysis characteristics for the practical application of hydrogen production system using permalloy plate catalyst

Muto, Tomohiro; Asahara, Makoto; Miyasaka, Takeshi; Asato, Katsuo; Uehara, Takuma; Koshi, Mitsuo

doi:10.1016/j.ces.2022.117931

Cited by 11 publications

(2 citation statements)

References 47 publications

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“…In this analysis, Shimizu's detailed reaction model [39] was used for hydrogen combustion, and the Ranzi-based model [40] developed in our previous work [41] was used for methane pyrolysis.…”

Section: Numerical Analysismentioning

confidence: 99%

CO2-Free Hydrogen Production by Methane Pyrolysis Utilizing a Portion of the Produced Hydrogen for Combustion

Uehara,

Asahara,

Miyasaka

2024

Energies

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Air pollutants such as carbon dioxide and nitrogen oxides emitted by the combustion of fossil fuels have become the subject of increasing concern. Hydrogen has accordingly emerged as a promising low-emission alternative energy source. Among the various methods for hydrogen production, methane pyrolysis, which produces hydrogen without emitting carbon dioxide, has gained substantial attention. This study evaluated the self-sustainability of a new hydrogen production system based on methane pyrolysis, in which a portion of the hydrogen produced is used as combustion fuel rather than relying on catalysts and electrical heating. Coupled heat transfer and one-dimensional reaction simulations employing two plug-flow reactors of a counterflow double-pipe heat exchanger were conducted to investigate the feasibility and efficiency of the proposed system, as well as the influence of flow conditions on hydrogen production. The results confirmed system viability, informed the estimation of hydrogen production rates, and provided methane conversion rate data emphasizing the critical role of low-flow conditions and residence time in system efficiency. Additionally, the production of carbon constituted a significant aspect of system efficiency. These findings indicate that the proposed system can produce environmentally friendly hydrogen, contributing to its potential utilization as a sustainable energy source.

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Section: Numerical Analysismentioning

confidence: 99%

CO2-Free Hydrogen Production by Methane Pyrolysis Utilizing a Portion of the Produced Hydrogen for Combustion

Uehara,

Asahara,

Miyasaka

2024

Energies

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“…There are recent efforts to avoid carbon dioxide release, leading catalytic processes to the formation of elemental carbon (cf. the so-called turquoise hydrogen); they are the papers of Banu and Bicer [48] and Muto et al [49]. Metals of the iron group, as well as some noble metals, are tested as catalysts.…”

Section: Natural Gas Processingmentioning

confidence: 99%

Perspectives on the Development of Technologies for Hydrogen as a Carrier of Sustainable Energy

Beschkov,

Ganev

2023

Energies

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Hydrogen is a prospective energy carrier because there are practically no gaseous emissions of greenhouse gases in the atmosphere during its use as a fuel. The great benefit of hydrogen being a practically inexhaustible carbon-free fuel makes it an attractive alternative to fossil fuels. I.e., there is a circular process of energy recovery and use. Another big advantage of hydrogen as a fuel is its high energy content per unit mass compared to fossil fuels. Nowadays, hydrogen is broadly used as fuel in transport, including fuel cell applications, as a raw material in industry, and as an energy carrier for energy storage. The mass exploitation of hydrogen in energy production and industry poses some important challenges. First, there is a high price for its production compared to the price of most fossil fuels. Next, the adopted traditional methods for hydrogen production, like water splitting by electrolysis and methane reforming, lead to the additional charging of the atmosphere with carbon dioxide, which is a greenhouse gas. This fact prompts the use of renewable energy sources for electrolytic hydrogen production, like solar and wind energy, hydropower, etc. An important step in reducing the price of hydrogen as a fuel is the optimal design of supply chains for its production, distribution, and use. Another group of challenges hindering broad hydrogen utilization are storage and safety. We discuss some of the obstacles to broad hydrogen application and argue that they should be overcome by new production and storage technologies. The present review summarizes the new achievements in hydrogen application, production, and storage. The approach of optimization of supply chains for hydrogen production and distribution is considered, too.

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Unlocking the potential of solid carbon: synergistic production with hydrogen from oil and gas resources for innovative applications and a sustainable future

Shah,

Nasser,

Basha

et al. 2024

Adv Compos Hybrid Mater

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Methane pyrolysis characteristics for the practical application of hydrogen production system using permalloy plate catalyst

Cited by 11 publications

References 47 publications

CO2-Free Hydrogen Production by Methane Pyrolysis Utilizing a Portion of the Produced Hydrogen for Combustion

CO2-Free Hydrogen Production by Methane Pyrolysis Utilizing a Portion of the Produced Hydrogen for Combustion

Perspectives on the Development of Technologies for Hydrogen as a Carrier of Sustainable Energy

Unlocking the potential of solid carbon: synergistic production with hydrogen from oil and gas resources for innovative applications and a sustainable future

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