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Lim, Hankwon
Sustainable Process Analysis, Design, and Engineering (SPADE)
Research Interests
  • Process analysis, Process design, Techno-economic analysis, Separation process, Reaction engineering, Computational fluid dynamics, Membrane reactor, H2 energy, Water electrolysis, Vanadium redox flow battery, Greenhouse gas reduction

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Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis

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Title
Parametric Study for Thermal and Catalytic Methane Pyrolysis for Hydrogen Production: Techno-Economic and Scenario Analysis
Author
Cheon, SeunghyunByun, ManheeLim, DongjunLee, HyunjunLim, Hankwon
Issue Date
2021-10
Publisher
MDPI
Citation
ENERGIES, v.14, no.19, pp.6102
Abstract
As many countries have tried to construct a hydrogen (H-2) 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-2 with no CO2 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-2 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-2 and C production rate, the ratio of H-2 combusted to supply the heat required and the ratio of reactants for the gasifier (C, Air, and water (H2O)), unit H-2 production costs of USD 2.14, 3.66, 3.53, and 3.82 kgH(2)(-1) from TMP-S1, CMP-S2, TMPG-S3, and CMPG-S4, respectively, were obtained at 40% H-2 combusted and a reactants ratio for C-Air-H2O of 1:1:2. Moreover, trends of unit H-2 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-2 production methods was reported in the scenario analysis for the H-2 production scale and C selling price.</p>
URI
https://scholarworks.unist.ac.kr/handle/201301/54890
URL
https://www.mdpi.com/1996-1073/14/19/6102
DOI
10.3390/en14196102
ISSN
1996-1073
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