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DuPont wins repeat STRATCO alkylation technology contract

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Hydrocarbon Engineering,

DuPont Clean Technologies has been awarded the contract to supply Sinopec with a second STRATCO® alkylation unit. The unit is for the Sinopec Qilu Petrochemical Corp.

In order to comply with the China V standard of 10 ppm sulfur content for fuel, Sinopec commissioned DuPont for the license, engineering and equipment of a STRATCO alkylation unit with 400 kmta (10 300 bpsd) alkylate capacity.

The STRATCO alkylation unit will enable Sinopec Qilu to generate low-sulfur, high-octane, low-Rvp alkylate with zero olefins that meets the criteria of the China V standard. Startup is targeted for mid-2018.

“Due to extreme plot space limitations within the Sinopec Qilu refinery, DuPont has designed the STRATCO alkylation unit with the innovative Model 74 Contactor™ reactors. This is the first application of the Model 74 Contactor™ reactors, which were developed to reduce the number of reactors in an alkylation unit. This not only reduces the amount of plot space required, but also results in an overall lower capital cost while offering the extremely high reliability and on-stream time that refiners have come to expect from the STRATCO alkylation technology,” said Kevin Bockwinkel, Global Business Manager, STRATCO Alkylation Technology.

Fundamentally, the Model 74 Contactor reactor is the same as commercially operating Contactor reactors in service throughout the world. The Model 74 Contactor reactor includes the latest improvements and each has a volume of 68.1 m3 (18 000 gal.) while the standard size Contactor reactor (Model 63) has a volume of 43.5 m3 (11 500 gal.) per reactor. Both reactor models are commercially available from DuPont.

“Sinopec is driving gasoline and diesel production to new, lower-emission specifications at its refineries,” said Eli Ben-Shoshan, global business leader, DuPont Clean Technologies. “DuPont is pleased to be able to assist Sinopec with a custom-designed solution for its site to produce cleaner fuel.”

The Sinopec Tianjin Co. (TPCC) had previously awarded a contract to DuPont for a STRATCO alkylation unit at its oil refinery in the Tianjin Binhai New Area district in northern China. The Tianjin alkylation unit startup is scheduled for mid-2018.

Licensed and designed by DuPont, the STRATCO alkylation technology is the established global leader in the industry with over 90 units licensed worldwide and more than 850 000 bpsd (33 300 kmta) of installed capacity.

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