MODELING AND SIMULATION OF A BENZENE RECOVERY PROCESS BY EXTRACTIVE DISTILLATION
| Autor: | Guilherme Braganholo Flôres, Rafael de Pelegrini Soares, Lauren Batista Brondani |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Activity coefficient
Benzeno business.industry Chemistry General Chemical Engineering lcsh:TP155-156 NFM Benzene Reboiler Dilution Process simulation Simulação [Processos químicos] Scientific method Extractive distillation Non-random two-liquid model Modelagem [Processos químicos] N-formylmorpholine Sensitivity (control systems) lcsh:Chemical engineering Process engineering business Destilação extrativa UNIFAC |
| Zdroj: | Brazilian Journal of Chemical Engineering v.32 n.1 2015 Brazilian Journal of Chemical Engineering Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ Brazilian Journal of Chemical Engineering, Volume: 32, Issue: 1, Pages: 283-291, Published: MAR 2015 Brazilian Journal of Chemical Engineering, Vol 32, Iss 1, Pp 283-291 (2015) Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
| ISSN: | 0104-6632 |
| DOI: | 10.1590/0104-6632.20150321s00002825 |
| Popis: | Extractive distillation processes with N-formylmorpholine (NFM) are used industrially to separate benzene from six carbon non-aromatics. In the process studied in this work, the stream of interest consists of nearly 20 different hydrocarbons. A new set of NRTL parameters was correlated based on literature experimental data. Both vapor-liquid equilibrium as well as infinite dilution activity coefficient data were taken into account; missing parameters were estimated with the UNIFAC group contribution model. The extractive distillation process was simulated using ASPEN Plus®. Very good agreement with plant data was obtained. The influences of the main operational parameters, solvent to feed ratio and solvent temperature, were studied. Theoretical optimum operating values were obtained and can be implemented to improve the industrial process. Extreme static sensitivity with respect to reboiler heat was observed, indicating that this can be the source of instabilities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|