Improved separation process for olefin production

Details Improved separation process for olefin production Improved separation process for olefin production

C - Chemistry, Metallurgy

07

C

C07C 7/00 (2006.01) C10L 3/10 (2006.01)

Patent

CA 2717895

Improved processes for the separation of olefins from paraffins, such as propylene from propane are provided. Two product splitters are used in parallel to separate propylene from propane. One of the product splitters operates at a lower pressure, while the second product splitter operates at a higher pressure. The use of the two splitters in parallel provides a process for recovery of a high purity propylene product with lower energy consumption compared to prior art processes.

L'invention porte sur des procédés améliorés permettant de séparer les oléfines des paraffines, par exemple le propylène du propane. On utilise deux colonnes de fractionnement en parallèle afin de séparer le propylène du propane. L'une des colonnes de fractionnement fonctionne à une pression inférieure, tandis que la seconde colonne fonctionne à une pression supérieure. L'utilisation de deux colonnes de fractionnement en parallèle permet la mise en oeuvre d'un procédé de récupération d'un produit propylène de haute pureté avec une moindre consommation d'énergie, par comparaison avec les procédés de l'état antérieur de la technique.

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