| Titre : | Two-stripper/decanter flowsheet for methanol recovery in the TAME reactive-distillation process (2010) |
| Auteurs : | Yi Chang Wu, Auteur ; Chien, I-Lung, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 23, Décembre 2009) |
| Article en page(s) : | pp. 10532–10540 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Two-Stripper/Decanter--Flowsheet--Methanol--Recovery--TAME--Reactive-Distillation--Process |
| Résumé : | The process to produce TAME via reactive distillation requires a methanol-recovery section because the presence of C5/methanol azeotropes means that a significant amount of methanol is present in the distillate from the reactive column. The use of pressure-swing azeotropic distillation and extractive distillation were studied in a previous paper in which both the steady-state design and the plantwide control of the entire process were developed. This paper considers a third alternative flowsheet for the separation of the C5/methanol azeotropes that takes advantage of the heterogeneity of the azeotrope. Two stripping columns and a decanter are used. The total annual cost of this flowsheet is a factor of 4 less than that of the pressure-swing system. The system is demonstrated to be easy to control by controlling a tray temperature in each stripping column. |
| ISSN : | 0888-5885 |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie900670f |
