Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis
As many countries have tried to construct a hydrogen (H<sub>2</sub>) society to escape the conventional energy paradigm by using fossil fuels, methane pyrolysis (MP) has received a lot of attention owing to its ability to produce H<sub>2</sub> with no CO<sub>2</sub&g...
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2021-09-01
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author | Seunghyun Cheon Manhee Byun Dongjun Lim Hyunjun Lee Hankwon Lim |
author_facet | Seunghyun Cheon Manhee Byun Dongjun Lim Hyunjun Lee Hankwon Lim |
author_sort | Seunghyun Cheon |
collection | DOAJ |
description | As many countries have tried to construct a hydrogen (H<sub>2</sub>) society to escape the conventional energy paradigm by using fossil fuels, methane pyrolysis (MP) has received a lot of attention owing to its ability to produce H<sub>2</sub> with no CO<sub>2</sub> emission. In this study, a techno-economic analysis including a process simulation, itemized cost estimation, and sensitivity and scenario analysis was conducted for the system of thermal-based and catalyst-based MP (TMP-S1 and CMP-S2), and the system with the additional H<sub>2</sub> production processes of carbon (C) gasification and water–gas shift (WGS) reaction (TMPG-S3 and CMPG-S4). Based on the technical performance expressed by H<sub>2</sub> and C production rate, the ratio of H<sub>2</sub> combusted to supply the heat required and the ratio of reactants for the gasifier (C, Air, and water (H<sub>2</sub>O)), unit H<sub>2</sub> production costs of USD 2.14, 3.66, 3.53, and 3.82 kgH<sub>2</sub><sup>−1</sup> from TMP-S1, CMP-S2, TMPG-S3, and CMPG-S4, respectively, were obtained at 40% H<sub>2</sub> combusted and a reactants ratio for C-Air-H<sub>2</sub>O of 1:1:2. Moreover, trends of unit H<sub>2</sub> production cost were obtained and key economic parameters of the MP reactor, reactant, and C selling price were represented by sensitivity analysis. In particular, economic competitiveness compared with commercialized H<sub>2</sub> production methods was reported in the scenario analysis for the H<sub>2</sub> production scale and C selling price. |
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series | Energies |
spelling | doaj.art-67f43e33b275401a8cdc1beaa4b46d622023-11-22T15:59:19ZengMDPI AGEnergies1996-10732021-09-011419610210.3390/en14196102Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario AnalysisSeunghyun Cheon0Manhee Byun1Dongjun Lim2Hyunjun Lee3Hankwon Lim4School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, KoreaSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, KoreaSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, KoreaSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, KoreaSchool of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Eonyang-eup, Ulju-gun, Ulsan 44919, KoreaAs many countries have tried to construct a hydrogen (H<sub>2</sub>) society to escape the conventional energy paradigm by using fossil fuels, methane pyrolysis (MP) has received a lot of attention owing to its ability to produce H<sub>2</sub> with no CO<sub>2</sub> emission. In this study, a techno-economic analysis including a process simulation, itemized cost estimation, and sensitivity and scenario analysis was conducted for the system of thermal-based and catalyst-based MP (TMP-S1 and CMP-S2), and the system with the additional H<sub>2</sub> production processes of carbon (C) gasification and water–gas shift (WGS) reaction (TMPG-S3 and CMPG-S4). Based on the technical performance expressed by H<sub>2</sub> and C production rate, the ratio of H<sub>2</sub> combusted to supply the heat required and the ratio of reactants for the gasifier (C, Air, and water (H<sub>2</sub>O)), unit H<sub>2</sub> production costs of USD 2.14, 3.66, 3.53, and 3.82 kgH<sub>2</sub><sup>−1</sup> from TMP-S1, CMP-S2, TMPG-S3, and CMPG-S4, respectively, were obtained at 40% H<sub>2</sub> combusted and a reactants ratio for C-Air-H<sub>2</sub>O of 1:1:2. Moreover, trends of unit H<sub>2</sub> production cost were obtained and key economic parameters of the MP reactor, reactant, and C selling price were represented by sensitivity analysis. In particular, economic competitiveness compared with commercialized H<sub>2</sub> production methods was reported in the scenario analysis for the H<sub>2</sub> production scale and C selling price.https://www.mdpi.com/1996-1073/14/19/6102thermal methane pyrolysiscatalytic methane pyrolysisH<sub>2</sub> productionprocess simulationeconomic analysisunit H<sub>2</sub> production cost |
spellingShingle | Seunghyun Cheon Manhee Byun Dongjun Lim Hyunjun Lee Hankwon Lim Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis Energies thermal methane pyrolysis catalytic methane pyrolysis H<sub>2</sub> production process simulation economic analysis unit H<sub>2</sub> production cost |
title | Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis |
title_full | Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis |
title_fullStr | Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis |
title_full_unstemmed | Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis |
title_short | Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis |
title_sort | parametric study for thermal and catalytic methane pyrolysis for hydrogen production techno economic and scenario analysis |
topic | thermal methane pyrolysis catalytic methane pyrolysis H<sub>2</sub> production process simulation economic analysis unit H<sub>2</sub> production cost |
url | https://www.mdpi.com/1996-1073/14/19/6102 |
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