Advertisement DuPont Clean Technologies has been awarded the contract to supply ORLEN Lietuva with licensing, engineering, and technical services for a STRATCO ® alkylation unit and a MECS ® spent acid regeneration (SAR) unit at the Mažeikiai refinery in Mažeikiai, Lithuania. The Mažeikiai refinery processes an average of 8 million tpy of crude with capacity of up to 10 million tpy of crude. In order to increase refinery complexity and flexibility of the Mažeikiai refinery, ORLEN commissioned DuPont for a STRATCO alkylation unit with 240 000 tpy (6000 bpd) alkylate capacity. The alkylation unit will utilise LPG in the conversion to alkylate, and therefore upgrade refinery profitability. The 75 tpd MECS SAR unit, also under license from DuPont, will provide the refinery with a consistent supply of sulfuric acid, which is utilised as the catalyst for the alkylation unit, while ensuring compliance with the region’s stringent emission regulations.