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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Main Authors: Seunghyun Cheon, Manhee Byun, Dongjun Lim, Hyunjun Lee, Hankwon Lim
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/19/6102
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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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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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