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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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The power of molten salt in methane dry reforming: Conceptual design with a CFD study

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Title
The power of molten salt in methane dry reforming: Conceptual design with a CFD study
Author
Lee, SunggeunLim, Hankwon
Issue Date
2021-02
Publisher
ELSEVIER SCIENCE SA
Citation
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, v.159, pp.108230
Abstract
A numerical study of the dry reforming of methane is discussed by applying molten salt as the heat source. A tortuous array of reactors, a reactor with frustum shape and a change in the number of reformer beds immersed in the molten salt are studied. The first observation is that the temperature of the heat source does not drop significantly between the inlet and outlet. This property naturally leads to a methane conversion that is proportional to the length when the catalyst volume is fixed. For a tortuous shape with 12 reactors in series, 0.4 m long each, neither the molten salt temperature nor the methane conversion differed significantly between the first and last reactors. Compared to the gas-type heat source, the molten salt turns out to be a very powerful energy carrier. In addition, we briefly discuss the frustum reactor and the variation in the number of reformer beds immersed in molten salt keeping the amount of catalyst fixed. In general, for the frustum reactor the conversion increases as the radius of the feed input becomes smaller. Finally, the CH4 conversion decreases as the number of reformer bed increases for the variation of the number of reformer beds.
URI
https://scholarworks.unist.ac.kr/handle/201301/50162
URL
https://www.sciencedirect.com/science/article/abs/pii/S0255270120306929?via%3Dihub
DOI
10.1016/j.cep.2020.108230
ISSN
0255-2701
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