Process for heating pet pellet feed to a solid stating...

Details Process for heating pet pellet feed to a solid stating... Process for heating pet pellet feed to a solid stating...

C - Chemistry, Metallurgy

08

G

C08G 63/02 (2006.01)

Patent

CA 2536296

Considerable energy savings may be realized by recovering heat from hot PET pellets exiting a solid state polymerization reactor, and using this heat to heat cool pellets entering the crystallizer or solid state polymerization reactor. The heat may be transferred from hot to cool pellets employing a heat exchanger.

Selon l'invention, des économies d'énergie considérables peuvent être réalisées par la récupération de pastilles chaudes de poly(éthylène téréphtalate) (PET) sortant d'un réacteur de polymérisation à l'état solide, et par l'utilisation de cette chaleur pour chauffer les pastilles froides pénétrant dans le cristalliseur ou dans le réacteur de polymérisation à l'état solide. La chaleur peut être transférée des pastilles chaudes aux pastilles froides au moyen d'un échangeur thermique.

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