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Details van artikel 14 van 21 gevonden artikelen
| Titel: |
PILOT PLANT STUDIES AND MODELLING OF A SEMI-BATCH POLYESTERIFICATION PROCESS |
| Auteur: |
Dairanieh, Issam S. Rasoul, Firas Khraishi, Nadia |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 96 (1990) nr. 1 pagina's 57-68 |
| Jaar: |
1990 |
| Inhoud: |
A novel unsaturated polyester formulation was developed recently in our laboratories. The polyester resin, which was designed as a green-house glazing material, exhibited excellent optical properties and superior resistance to weathering conditions. This study describes the scale-up procedure followed in preparing the resin in a 200 L pilot plant reactor starting from its preparation in a 1 L reactor. The paper analyzes the major variables affecting the polyesterification process and presents a semi-empirical model capable of predicting the pilot plant kinetic data from laboratory reactor data. The model is based on a recently developed third order kinetic equation for the reaction of non-stoichiometric amounts of hydroxyl and carboxylic groups. The model quantifies the effects of reaction temperature and inert gas flow rate on reaction rate and provides a basis for the polyesterification process scale-up. The reaction temperature dependence is assumed Arrhenius, whereas the gas flow rate dependence is empirically determined as a function of the molar ratio of reactants to inert gas. Application of the model to commercial sized reactors will be highlighted. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 14 van 21 gevonden artikelen
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