Methanol Steam Reforming Using Multilayer Cup Structure for Catalyst Support

Ji, Hyunjin; Lee, Jung-Hun; Choi, Eunyeong; Yang, Sung-Ho

doi:10.7316/khnes.2020.31.2.202

“…The reaction kinetics of the methanol steam reforming process have been widely investigated. The following three processes are known to be the main reactions of the methanol steam reforming reaction [10][11][12][13][14][15][16]. The methanol steam reforming reaction is described by three elementary reactions: methanol steam reforming reaction (SR), methanol decomposition (MD), and water gas shift (WGS) reaction.…”

Section: Reaction Kineticsmentioning

confidence: 99%

“…On the other hand, Ji et al reported on the steam reforming of methanol using phase change heat transfer [9,10]. Since the methanol steam reforming temperature ranges from 200 to 300 °C, they had to select an appropriate phase change medium for the temperature range.…”

Section: Introductionmentioning

confidence: 99%

A Computational Analysis of a Methanol Steam Reformer Using Phase Change Heat Transfer

Song¹,

Kim²,

Yu³

et al. 2021

Advances in Energy Research

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A methanol steam reformer converts methanol and steam into a hydrogen-rich mixture through an endothermic reaction. The methanol reformer is divided into a reaction section and a heat supply section that transfers thermal energy from 200 to 300 °C. This study presents the behavior of the methanol steam reforming reaction using the latent heat of the steam. A numerical analysis was separately conducted for two different regimes assuming constant heat flux conditions. A methanol steam reformer is an annulus structure that has a phase change heat transfer from an outer tube to an inner tube. Different from the steam zone temperature in the tube, the latent heat of steam condensation decreases, and there is a gradual between-wall temperature decrease along the longitudinal direction. Since the latent heat of steam condensation is very sensitive to the requested heat from the reformer, it is necessary to consider a refined design of a methanol reformer to obtain a large enough amount of heat by steam condensation.

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A Computational Analysis of a Methanol Steam Reformer Using Phase Change Heat Transfer

Song

¹

,

Kim

²

,

Yu

³

et al. 2020

Energies

Self Cite

3

0

View full text Add to dashboard Cite

A methanol steam reformer converts methanol and steam into a hydrogen-rich mixture through an endothermic reaction. The methanol reformer is divided into a reaction section and a heat supply section that transfers thermal energy from 200 to 300 °C. This study presents the behavior of the methanol steam reforming reaction using the latent heat of the steam. A numerical analysis was separately conducted for two different regimes assuming constant heat flux conditions. A methanol steam reformer is an annulus structure that has a phase change heat transfer from an outer tube to an inner tube. Different from the steam zone temperature in the tube, the latent heat of steam condensation decreases, and there is a gradual between-wall temperature decrease along the longitudinal direction. Since the latent heat of steam condensation is very sensitive to the requested heat from the reformer, it is necessary to consider a refined design of a methanol reformer to obtain a large enough amount of heat by steam condensation.

show abstract

Computational Analysis for Improving Internal Flow of High Pressure Methanol Steam Reformer Pressure Vessel

Yu¹,

Ji²,

Yu³

2020

KHNES

1

0

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Methanol Steam Reforming Using Multilayer Cup Structure for Catalyst Support

Cited by 3 publications

References 8 publications

A Computational Analysis of a Methanol Steam Reformer Using Phase Change Heat Transfer

A Computational Analysis of a Methanol Steam Reformer Using Phase Change Heat Transfer

A Computational Analysis of a Methanol Steam Reformer Using Phase Change Heat Transfer

Computational Analysis for Improving Internal Flow of High Pressure Methanol Steam Reformer Pressure Vessel

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