Process for the removal of oxygenates from a gaseous stream

Details Process for the removal of oxygenates from a gaseous stream Process for the removal of oxygenates from a gaseous stream

C - Chemistry, Metallurgy

10

G

C10G 70/06 (2006.01) B01D 53/50 (2006.01) B01D 53/72 (2006.01)

Patent

CA 2632639

The present invention relates to a process for the removal of oxygenates from a gaseous stream also comprising carbon dioxide, said process comprising: a) providing a first gaseous stream comprising one or more mono-olefin(s), at least 100ppm (by weight) of one or more oxygenates and at least 0.1 wt% carbon dioxide, and b) treating the first gaseous stream to produce a second gaseous stream comprising one or more mono-olefin(s) and at least 01 wt% carbon dioxide with reduced oxygenate content, wherein said treating comprises contacting the first gaseous stream with a first aqueous stream and with a first liquid hydrocarbon stream, and c) subsequently treating the second gaseous stream to remove the carbon dioxide therein.

La présente invention concerne un procédé d~élimination d'oxygénates d'un courant gazeux comprenant également du dioxyde de carbone, ledit procédé comprenant les étapes suivantes : a) utiliser un premier courant gazeux comprenant une ou plusieurs mono-oléfines, au moins 100 ppm (en poids) d~un ou de plusieurs oxygénates et au moins 0,1 % en poids de dioxyde de carbone, b) traiter le premier courant gazeux afin d~obtenir un second courant gazeux comprenant une ou plusieurs mono-oléfines et au moins 0,1 % en poids de dioxyde de carbone avec une teneur réduite en oxygénates, ledit traitement comprenant la mise en contact du premier courant gazeux avec un premier courant aqueux et avec un premier courant d~hydrocarbures liquide et c) traiter ensuite le second courant gazeux afin d'éliminer le dioxyde de carbone qu~il contient.

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