| Autor: |
Roshi Dahal, Petri Uusi-Kyyny, Juha-Pekka Pokki, Taina Ohra-aho, Ville Alopaeus |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Chemical Engineering Research and Design. |
| ISSN: |
0263-8762 |
| DOI: |
10.1016/j.cherd.2023.05.039 |
| Popis: |
This study presents experiments and modeling of batch distillation for the separation of styrene monomer from polystyrene pyrolysis oil. The bottoms obtained from the batch distillation was further fractionated applying a short-path distillation unit to study the separation efficiency of styrene from the polystyrene pyrolysis oil. GC-FID and GCMS were applied for the composition analysis of the polystyrene pyrolysis oil, distillate, and bottom fractions. Styrene monomer was obtained with a purity of 99.9 wt% from the batch distillation. The batch distillation was modeled employing the NRTL–RK thermodynamic model. A good agreement was achieved for the purity of styrene between the experimental analysis and model prediction. Additionally, a continuous distillation column was modeled for the scale-up of the process. Furthermore, viscosities and densities of the bottoms fraction were measured at the temperature range of 298–348 K. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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