Patent ID: 8338656
Filing Date: 2012-12-25
Classification: C07C

Abstract:
1. A process for making and separating an olefin stream comprising a mixture of olefins into at least two olefin streams, the process comprising the steps of: (a) providing an olefin stream to be separated comprising at least about 20 wt % of an olefin selected from the group consisting of ethylene, propylene and combinations thereof and not greater than about 3.0 wt % dienes based on the total weight of the olefin stream; (b) compressing the olefin stream in a compressor system having a first stage and a second stage to obtain a compressed olefin stream; and (c) separating the compressed olefin stream into at least two olefin streams, wherein the olefin stream being compressed in step b) is treated between the first stage and the second stage to remove acid gases prior to separating the compressed olefin stream into at least two olefin streams.