Patent ID: 7795488

Claim:
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 100 ppm (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 0.1 wt % carbon dioxide with reduced oxygenate content, wherein said treating comprises contacting the first gaseous stream with a first aqueous stream comprising at least 95 wt % water and with a first liquid hydrocarbon stream, and c) subsequently treating the second gaseous stream to remove the carbon dioxide therein, the majority of the carbon dioxide in the first gaseous stream being removed in step (c).