Phoenix Equipment has for sale this 21,000 BPD Alkylation Unit (HF Alky) with Alkylation Feed Hydrotreater (AFHT) capable of 15,100 BPD capacity. The main purpose of the Alkylation Unit is to produce a highly branched iso-paraffin known as Alkylate. This is achieved by reacting light olefins with isobutane using HF (hydrofluoric acid) as a catalyst. The alkylation unit process can be divided into two main phases, reaction and separation. The second unit, the Alkylation Feed Hydrotreater (AFHT) removes diolefins from the Alkylation Unit feed and isomerises certain olefins using a Palladium catalyst. Its function is to reduce acid soluble oil production in the Alkylation Unit, and thus significantly improve throughput. This also results in a higher octane product Alkylate.