Aqueous-Phase Reforming in a Microreactor: The Role of Surface Bubbles

Renee M. Ripken, Jeffery A. Wood, Johannes G. E. Gardeniers, Severine Le Gac*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

In heterogeneous catalysis, the creation of gaseous products as bubbles in a liquid phase on the catalytic surface is associated with slip phenomena. In a microreactor, the slip length at the gas‐liquid interface is in the same order of magnitude as the reactor dimensions, which can affect fluid dynamics and transport phenomena. Here, the interplay of momentum, heat and mass transfer in a microreactor, when bubbles form on the catalytic surface, was investigated using two‐dimensional simulations. The effect of bubbles on the endothermic process of aqueous‐phase reforming of a glycerol solution was evaluated in terms of conversion and conversion and temperature in the reactor. Altogether, this study highlights the impact of bubbles, not only on the transport phenomena but also on the reactor performance.
Original languageEnglish
Pages (from-to)2179-2186
JournalChemical engineering and technology
Volume42
Issue number10
DOIs
Publication statusPublished - Oct 2019

Keywords

  • Bubbles
  • Heat and mass transport
  • Heterogeneous catalysis
  • Microfluidics
  • Slip velocity

Cite this

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title = "Aqueous-Phase Reforming in a Microreactor: The Role of Surface Bubbles",
abstract = "In heterogeneous catalysis, the creation of gaseous products as bubbles in a liquid phase on the catalytic surface is associated with slip phenomena. In a microreactor, the slip length at the gas‐liquid interface is in the same order of magnitude as the reactor dimensions, which can affect fluid dynamics and transport phenomena. Here, the interplay of momentum, heat and mass transfer in a microreactor, when bubbles form on the catalytic surface, was investigated using two‐dimensional simulations. The effect of bubbles on the endothermic process of aqueous‐phase reforming of a glycerol solution was evaluated in terms of conversion and conversion and temperature in the reactor. Altogether, this study highlights the impact of bubbles, not only on the transport phenomena but also on the reactor performance.",
keywords = "Bubbles, Heat and mass transport, Heterogeneous catalysis, Microfluidics, Slip velocity",
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Aqueous-Phase Reforming in a Microreactor : The Role of Surface Bubbles. / Ripken, Renee M.; Wood, Jeffery A.; Gardeniers, Johannes G. E.; Le Gac, Severine.

In: Chemical engineering and technology, Vol. 42, No. 10, 10.2019, p. 2179-2186.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Aqueous-Phase Reforming in a Microreactor

T2 - The Role of Surface Bubbles

AU - Ripken, Renee M.

AU - Wood, Jeffery A.

AU - Gardeniers, Johannes G. E.

AU - Le Gac, Severine

PY - 2019/10

Y1 - 2019/10

N2 - In heterogeneous catalysis, the creation of gaseous products as bubbles in a liquid phase on the catalytic surface is associated with slip phenomena. In a microreactor, the slip length at the gas‐liquid interface is in the same order of magnitude as the reactor dimensions, which can affect fluid dynamics and transport phenomena. Here, the interplay of momentum, heat and mass transfer in a microreactor, when bubbles form on the catalytic surface, was investigated using two‐dimensional simulations. The effect of bubbles on the endothermic process of aqueous‐phase reforming of a glycerol solution was evaluated in terms of conversion and conversion and temperature in the reactor. Altogether, this study highlights the impact of bubbles, not only on the transport phenomena but also on the reactor performance.

AB - In heterogeneous catalysis, the creation of gaseous products as bubbles in a liquid phase on the catalytic surface is associated with slip phenomena. In a microreactor, the slip length at the gas‐liquid interface is in the same order of magnitude as the reactor dimensions, which can affect fluid dynamics and transport phenomena. Here, the interplay of momentum, heat and mass transfer in a microreactor, when bubbles form on the catalytic surface, was investigated using two‐dimensional simulations. The effect of bubbles on the endothermic process of aqueous‐phase reforming of a glycerol solution was evaluated in terms of conversion and conversion and temperature in the reactor. Altogether, this study highlights the impact of bubbles, not only on the transport phenomena but also on the reactor performance.

KW - Bubbles

KW - Heat and mass transport

KW - Heterogeneous catalysis

KW - Microfluidics

KW - Slip velocity

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