Preconcentration Modeling for the Optimization of a Micro Gas Preconcentrator Applied to Environmental Monitoring

El Hadji Malick Camara (1, 2, 3, 4) , Philippe Breuil (1, 2, 3) , Christophe Pijolat (1, 2, 3)

1 MICC-ENSMSE - Département Microsystèmes, Instrumentation et Capteurs Chimiques
2 SPIN-ENSMSE - Centre Sciences des Processus Industriels et Naturels
3 LPMG-EMSE - Laboratoire des Procédés en Milieux Granulaires
4 IMT - Institut de Microtechnique

This paper presents the complete modeling of the preconcentration cycle for the optimization of a Micro Gas Preconcentrator applied to atmospheric pollution monitoring. The particularity of this modeling is based on the fact that it includes all equations governing not only the adsorption and desorption phenomena but also the detection phase. Two different approaches based on kinetic equations were used to illustrate the behavior of the Micro Gas Preconcentrator for given experimental conditions. The need of a high adsorption flow and heating rate, a low desorption flow and detection volume is demonstrated through this paper.

Mots clés: Preconcentration modelling; Micro Gas Preconcentrator; Adsorption; Breakthrough time; desorption; detection

Domaines: Génie des procédés

El Hadji Malick Camara, Philippe Breuil, Christophe Pijolat. Preconcentration Modeling for the Optimization of a Micro Gas Preconcentrator Applied to Environmental Monitoring. Procedia Chemistry, 2009, 1 (1), pp.662-665. ⟨10.1016/j.proche.2009.07.165⟩. ⟨hal-00451764⟩