Paraffin alkylation process

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 2/56 (2006.01) C07C 7/04 (2006.01)

Patent

CA 2648783

A process for the alkylation of isobutane is disclosed wherein isobutane is fed to two separate alkylation systems. The effluent from the first alkylation system is fed to an interim debutanizer where the C4's are separated from the alkylate product. The overhead C4 product is then fed to the second alkylation system to provide the isobutane. The effluent from the second alkylation system is fed to a traditional deisobutanizer to prevent any build up of normal butanes in the system.

L'invention concerne un procédé d'alkylation d'isobutane selon lequel de l'isobutane est introduit dans deux systèmes d'alkylation séparés. L'effluent du premier système d'alkylation est introduit dans un débutaniseur intermédiaire dans lequel les C4sont séparés de l'alkylat. Le produit C4 de tête est alors introduit dans le deuxième système d'alkylation pour obtenir de l'isobutane. L'effluent du deuxième système d'alkylation est introduit dans un déisobutaniseur classique pour éviter toute formation de butanes normaux dans le système.

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