Interdiffusion measurements in thermally controlled microchannel using infrared spectroscopic imaging - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Chemical Engineering Science Année : 2023

Interdiffusion measurements in thermally controlled microchannel using infrared spectroscopic imaging

Résumé

many applications, knowledge of the mass diffusivity coefficient is mandatory to optimize the design and operating conditions of microfluidic devices and chemical reactions. The literature reports few values due to limited techniques, and the impact of the fluid temperature is rarely taken into account when the diffusivity is measured. In this study, we present an imaging method to investigate and quantify the interdiffusion of two fluids in a microchannel under controlled temperatures. The experimental setup combines a thermally controlled microfluidic chip and a microscale infrared (IR) spectroscopy imaging technique. The mass diffusivity of formic acid (HCOOH) in sulfuric acid (H2SO4) was measured from room temperature to 50 ◦C to demonstrate the performance of the setup. This work offers a rapid tool and a methodology for accurate contactless interdiffusion measurements in thermally controlled T-shape reactors applicable a large set of chemicals.
Fichier principal
Vignette du fichier
I2M-CES-Garcia-2023.pdf (2.89 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04469990 , version 1 (21-02-2024)

Identifiants

Citer

Marine Garcia, Alain Sommier, Thomas Lafargue-Tallet, Gérald Clisson, Jean-Christophe Batsale, et al.. Interdiffusion measurements in thermally controlled microchannel using infrared spectroscopic imaging. Chemical Engineering Science, 2023, 282, pp.119136. ⟨10.1016/j.ces.2023.119136⟩. ⟨hal-04469990⟩
1 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More