, le coke s'accumule localement, et la désactivation est une simple fonction de la quantité déposée (Forzatti et Lietti, 1999.

. Gascón, le dépôt de coke s'effectue par une combinaison de monocouches et multicouches, 1999.

. Rodríguez, 3. la surface catalytique est hétérogène, et le dépôt de coke s'effectue sur certains types de sites uniquement, 1995.
URL : https://hal.archives-ouvertes.fr/in2p3-00311839

. Deleplanque, Les schémas réactionnels de déshydratation du glycérol ont fait l'objet de nombreusesétudes, 2010.

. Nimlos, , 2006.

. Suprun, , 2009.

, Après 21 heures, il y a plus de coke dans la zone proche de l'entrée du réacteur que vers la sortie. -La formation du coke est une réaction en plusieursétapes, et de nombreux sous-produits peuvent former le coke. Suprun et al. (2009) montrent que le dépôt de coke est formé par condensations secondaires de C 2 -et C 3 -aldéhydes et/ou de dérivés du furanne. -Les concentrations en eau et en oxygène influencent les réactions. -Le rendement et la sélectivité de l'acroléine diminuent avec la formation du coke, Afin de choisir un modèle cinétique adapté, nous avons tout d'abord analysé les mesures expérimentales, et les phénomènes suivants ontété observés : -Avec une alimentation composée de glycérol

. De-oliveira, il est presque impossible de décrire quantitativement toutes les réactionsà partir de données expéri-mentales limitées car plus d'une réaction secondaire conduisentà des oxydes de carbone, coke et autres produits. En accord avec les mesures expérimentales età partir desétudes bibliographiques, un schéma réactionnel avec les sous-produits principaux, 2009.

, CH 2 OH-CHOH-CH 2 OH ?? Sous-produit

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