Methods and systems for improving ethylene yield from iso-pentane feed by reverse isomerization and separation

Abstract

Systems and methods for the higher yield production of ethylene from pentane hydrocarbon streams containing iso-pentane are provided. The methods may include supplying a pentane hydrocarbon stream containing iso-pentane to a first reverse isomerization unit to produce a first isomerized pentane stream containing n-pentane and iso-pentane. The method may further include separating, at a first separation unit, n-pentane from the first isomerized pentane stream to generate a first n-pentane stream and an iso-pentane rich stream. The method may also include supplying the iso-pentane rich stream to a second reverse isomerization unit to produce a second isomerized pentane stream containing n-pentane and iso-pentane and combining the second isomerized pentane stream and the first n-pentane stream to produce a n-pentane rich stream. The method may further include supplying the n-pentane rich stream to a steam cracker to produce a cracked product containing ethylene and propylene.

Dependencies are inferred from the claim text.