Use of predehydration towers in an ethane oxidation to...

Details Use of predehydration towers in an ethane oxidation to... Use of predehydration towers in an ethane oxidation to...

C - Chemistry, Metallurgy

07

C

C07C 51/16 (2006.01)

Patent

CA 2640681

Described herein is a process in which acetic acid is produced by ethane oxidation. One byproduct of the ethane oxidation is water, which is commonly removed from the process in the same stream as the acetic acid process. As described herein, the ethane oxidation reactor effluent is processed in a predehydration tower so as to separately recover water, acetic acid, and a gas stream for recycle back to the ethane oxidation reactor.

L'invention concerne un procédé dans lequel de l'acide acétique est produit par oxydation d'éthane. De l'eau est générée en tant que sous-produit de l'oxydation d'éthane, et est généralement éliminée du procédé dans le même flux que celui du procédé de production d'acide acétique. Selon le procédé de l'invention, l'effluent du réacteur d'oxydation d'éthane est traité dans une tour de prédéshydratation de façon à récupérer séparément l'eau, l'acide acétique, et un flux gazeux à recycler dans le réacteur d'oxydation d'éthane.

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