Regime mapping and the role of the intermediate region in wall-coated microreactors

J.P. Lopes, M.A. Alves, Monica Oliveira, S.S.S. Cardoso, A.E. Rodrigues

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Operation of a wall-coated microreactor can occur in several mass transfer-reaction regimes. We define these regimes analytically in several planes of a multi-parametric map, taking into account the different degrees of concentration profile development, as well as the influence of non-unity orders of reaction and reactant inhibition in the kinetic law. It was found that the regions where conversion can be calculated from simplified mass transfer models are not discriminated by common results for entrance-length. We also illustrate the trade-offs that exist across this operating map concerning the catalyst design (costs associated with loading and volume) and overall system performance (evaluated in terms of reactant conversion, flow efficiency and microreactor effectiveness). It is shown that under certain conditions, the existence of moderate mass transfer resistance can be advantageous (even if internal limitations cannot be avoided), clarifying the role of the intermediate transport-reaction region.
LanguageEnglish
Pages166-184
JournalChemical Engineering Science
Volume94
Early online date26 Feb 2013
DOIs
Publication statusPublished - May 2013

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Mass transfer
Catalysts
Kinetics
Costs

Keywords

  • microreactor
  • regime mapping
  • development length
  • mass transfer
  • reaction engineering
  • catalysis

Cite this

Lopes, J.P. ; Alves, M.A. ; Oliveira, Monica ; Cardoso, S.S.S. ; Rodrigues, A.E. / Regime mapping and the role of the intermediate region in wall-coated microreactors. In: Chemical Engineering Science . 2013 ; Vol. 94. pp. 166-184.
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Regime mapping and the role of the intermediate region in wall-coated microreactors. / Lopes, J.P.; Alves, M.A.; Oliveira, Monica; Cardoso, S.S.S.; Rodrigues, A.E.

In: Chemical Engineering Science , Vol. 94, 05.2013, p. 166-184.

Research output: Contribution to journalArticle

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