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A new perspective on vegetable oil epoxidation modeling: reaction and mass transfer in a liquid-liquid-solid system
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  • Tapio Salmi,
  • Vincenzo Russo,
  • Adriana Aguilera,
  • Pasi Tolvanen,
  • Johan Wärnå,
  • Martino Di Serio,
  • Riccardo Tesser,
  • Tommaso Cogliano,
  • Sebastien Leveneur,
  • Kari Eränen
Tapio Salmi
Abo Akademi
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Vincenzo Russo
University of Naples Federico II
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Adriana Aguilera
Abo Akademi
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Pasi Tolvanen
Abo Akademi
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Johan Wärnå
Abo Akademi
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Martino Di Serio
University of Naples Federico II
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Riccardo Tesser
University of Naples Federico II
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Tommaso Cogliano
University of Naples Federico II
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Sebastien Leveneur
INSA de Rouen-LSPC
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Kari Eränen
Abo Akademi
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Abstract

A rigorous mathematical model was developed for a complex liquid-liquid-solid system in a batch reactor. The approach is general but particularly well applicable for the indirect epoxidation of vegetable oils according to the concept of N. Prileschajew. The model considers intra- and interfacial mass transfer effects coupled to the reaction kinetics. The liquid phases were described with chemical approach (aqueous phase) and a reaction-diffusion approach (oil phase). The oil droplets were treated as rigid spheres, in which the overall reaction rate is influenced by chemical reactions and molecular diffusion phenomena. The model was tested with a generic example, where two reactions proceeded simultaneously in the aqueous and oil phases. The example (i.e. fatty acid epoxidation à la Prileschajew) illustrated the power of the real multiphase model in epoxidation processes. The proposed modelling concept can be used for optimization purposes for many applications, which comprise a complex water-oil-solid catalyst system.

Peer review status:IN REVISION

23 Jun 2021Submitted to AIChE Journal
28 Jun 2021Assigned to Editor
28 Jun 2021Submission Checks Completed
11 Jul 2021Reviewer(s) Assigned
22 Sep 2021Editorial Decision: Revise Major