Alkylene oxide recovery systems

Details Alkylene oxide recovery systems Alkylene oxide recovery systems

B - Operations, Transporting

01

D

B01D 3/14 (2006.01) B01D 5/00 (2006.01) C07D 301/32 (2006.01)

Patent

CA 2731936

The application relates to a process for recovery of alkylene oxide comprising: Introducing a feed stream containing alkylene oxide to a stripping section of an alkylene oxide recovery column; stripping alkylene oxide from the feed stream to form a first gaseous portion, wherein the first gaseous portion flows from the stripping section to the reabsorption region of the alkylene oxide recovery column, and wherein the reabsorption region further comprises a first reabsorption section and a second reabsorption section; partially condensing the first gaseous portion into a liquid reflux stream and an alkylene oxide rich vapor stream, wherein the liquid reflux stream is in physical communication with the stripping section; reabsorbing a first fraction of the alkylene oxide rich vapor stream in a first water stream and reabsorbing a second fraction of the alkylene oxide rich vapor stream in a second water stream to form a second agueous solution in the second reabsorption section.

Systèmes et procédés améliorés d'extraction d'oxyde d'alkylène à partir de charges contenant cette substance dans une colonne d'extraction d'oxyde d'alkylène.

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