Patent ID: 7902412

Claim:
A process for producing alkylate comprising: separating butenes from a process stream from an olefin cracking process, thereby creating a C5+ rich stream for recycle to the olefin cracking process and a butene stream; passing the butene stream to an alkylation unit; passing an alkane stream, comprising alkanes and olefins, wherein the alkane stream is a C4 rich stream from a cracking unit, to a selective hydrogenation unit to selectively hydrogenate butadienes and isomerizes butenes; passing the hydrogenated stream to an alkylation unit; reacting the butenes and alkanes in the alkylation unit at reaction conditions, thereby generating an alkylate product stream comprising branched alkanes with 5 to 12 carbon atoms; purging a heavy stream, comprising C4+ paraffinic hydrocarbon components from the olefin cracking process; and passing the purged heavy stream to a naphtha cracking unit.