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S-OIL produces ‘K-SAF‘ for first time in Korea 04.04 ● S-OIL acquired three types of green certifications on sustainable and low-carbon products. - As it obtained ISCC CORSIA in the aviatio...

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Production Process

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SPM Single Point Mooring: Buoys anchored offshore serve as a mooring point for tankers to unload crude oil. The unloaded crude oil is then sent to onshore storage tanks through underwater pipelines.

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Crude Oil Storage Tanks

Crude Oil Storage Tanks: One tank has a capacity of 750,000 barrels and the capacity of three tanks is equivalent to crude oil consumption per day in Korea. The huge cylinder-shaped tank is 85 meters in diameter and 22 meters in height. It is equipped with a floating roof in order to prevent hydrocarbon vapor leaks.

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CDU Crude Distillation Unit: Through distillation, crude oil is separated into major oil fractions such as LPG, naphtha, kerosene, diesel, etc.

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MDU Middle Distillate Hydrodesulfurizing Unit: The sulfur content is removed from kerosene and diesel at high pressure and temperature.

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Kerosene Sweetening Unit

Kerosene Sweetening Unit: Odors and corrosive substance are removed from kerosene fraction to produce jet fuel.

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Naphtha Reforming Unit

Naphtha Reforming Unit: The naphtha separated from the CDU is reformed into an aromatics structure.

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BTX Extraction Unit

BTX Extraction Unit: Benzene, Toluene, and Xylene are extracted from the reformed naphtha.

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Xylene Center: High-value para-xylene is produced from mixed Xylene, Toluene, and heavy aromatics.

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LPG Recovery Unit

LPG Recovery Unit: The LPG separated from the CDU is further separated into propane and butane.

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VDU Vacuum Distillation Unit: Under reduced pressure, the residue from the CDU is separated into light and heavy oil fractions.

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RHDS Residue Hydrodesulfurization Unit [HYVAHL]: Sulfur, nitrogen, and asphalt contents are removed from CDU & VDU’s residue to produce ultra-low-sulfur bunker-C or feedstock for the RFCC(Residue Fluidized Catalytic Cracker).

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MHC MILD HYDROCARACKER: The Light oil fractions from the VDU are desulfurized to produce feedstock for the RFCC(Residue Fluidized Catalytic Cracker Unit) or the gasoil fraction from the CDU is desulfurized to produce ULSD(Ultra-Low-Sulfur Diesel).

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RFCC Residue Fluidized Catalytic Cracker: Desulfurized feedstock from the RHDS and MHC is cracked at high temperature to produce highvalue products like gasoline, propylene, etc by utilizing continuously regenerated catalyst.

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SDASolvent Deasphalting Unit: Deasphalted oil and asphalt are produced from residues from the VDU. Deasphalted oil is used to produce lube base oils.

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Lube Base Oil Production Unit

Lube Base Oil Production Unit: Light oil fractions from the VDU and deasphalted oil from the SDA are processed to produce high-quality lube base oils, which is used as a blending stock for manufacturing lubricants.

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HYC Hydrocracker: Under high pressure and temperature, the light oil fractions from the V여 are hydro-cracked into high-value products such as naphtha, ultra-low-sulfur kerosene/diesel, and lube base oils.

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Shipment Facility

Shipment Facility: Products are sent out via ships, tank trucks, rail tank cars, and pipelines.

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