Application: The Snamprogetti dimerization/hydrogenation technology is used to produce isooctene/isooctane—high-octane compounds (rich in C8 )…
Butene-1 Recovery Process by Snamprogetti
Application: The Snamprogetti butene-1 recovery technology allows extracting a C4 cut as a very high-purity butene-1 stream that is suitable as a comonomer for polyethylene production.
Feed: Olefinic C4 streams from steam cracker or fluid catalytic cracking (FCC) unit can be used as feedstock for the recovery of butene-1.
Description: The Snamprogetti process for butene-1 is based on proprietary binary interaction parameters that are specifically optimized after experimental work to minimize investment cost and utilities consumption. The plant is a super-fractionation unit composed of two fractionation towers provided with traditional trays.
Depending on the C4 feed composition, Snamprogetti offers different possible processing schemes. In a typical configuration, the C4 feed is sent to the first column (1) where the heavy hydrocarbons (mainly n-butane and butenes-2) are removed as bottom stream. In the second column (2), the butene-1 is recovered at the bottom and the light-ends (mainly isobutane) are removed as overhead stream.
This plant covers a wide range of product specifications including the more challenging level of butene-1 purities (99.3 wt%–99.6 wt%).
Licensor: Snamprogetti, a company of Saipem.
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