Adsorption of octamethylcyclotetrasiloxane (D4) on silica gel (SG): Retention mechanism - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Microporous and Mesoporous Materials Année : 2015

Adsorption of octamethylcyclotetrasiloxane (D4) on silica gel (SG): Retention mechanism

Léa Sigot
  • Fonction : Auteur
  • PersonId : 774017
  • IdRef : 185160875
Gaëlle Ducom
Patrick Germain

Résumé

Silica gel (SG) is an efficient adsorbent for the removal of octamethylcyclotetrasiloxane (D4) - a volatile organic silicon compound present in biogas. Complementary physicochemical characterizations of SG before and after D4 adsorption were performed: specific surface area, porosity, pH measurements, infrared spectroscopy, thermodesorption, thermogravimetry and differential scanning calorimetry. A retention mechanism, based on a combination of hydrogen bonding (at low uptake) and polymerization (at higher uptake) is proposed. This mechanism is able to explain the difficulties of siloxane thermal desorption.
Fichier non déposé

Dates et versions

hal-01743285 , version 1 (26-03-2018)

Identifiants

Citer

Léa Sigot, Gaëlle Ducom, Patrick Germain. Adsorption of octamethylcyclotetrasiloxane (D4) on silica gel (SG): Retention mechanism. Microporous and Mesoporous Materials, 2015, 213, pp.118 - 124. ⟨10.1016/j.micromeso.2015.04.016⟩. ⟨hal-01743285⟩
89 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More