Within the Fluid Catalytic Cracker (FCC)

Husky Lima Refinery is a world-scale refinery in Ohio, US. Established in 1886, the refinery has modified possession a number of times without ceasing operations. It is presently owned and operated by Husky Power, which acquired the refinery from Valero Vitality Company in 2007.

liquid ammonia tankThe refinery accounts for a quarter of the total gasoline consumption in Ohio. Designed to operate 24 hours a day, it produces nearly two billion gallons of refined petroleum yearly. It shuts just for upkeep each five years. Plans are being made to extend the refinery’s capability through an growth mission.

On 24 November 2009 a fireplace broke out in the refinery, damaging the isocracker. Repairs are being made.


The refinery is composed of a crude unit, a stabiliser, a vacuum tower, a delayed coker, a jet bender, a naphtha hydrotreater and a splitter.

It is also geared up with an isocracker, a catalytic reformer, a diesel hydrotreater, a hydrocracker, a fluid catalytic cracker unit, a gasoline desulphurisation unit, sulphur recovery items and an aromatics unit.


The refinery processes gasoline, diesel, jet gas, residual fuels and petrochemical feedstock. It processes almost 165,000 barrels (6,900,000 gallons) of crude oil per day. Conversion of crude oil into helpful merchandise on the refinery is carried out with 94% power effectivity.


Major products including gasoline and diesel are transported through a pipeline. Other merchandise are transported by truck or rail.

Refining course of

The refining process at Husky Lima begins from the crude unit at the south finish. Crude oil is first desalted to eradicate impurities.

It is then heated to nearly 700°F to separate it into boiling components of different ranges in atmospheric and vacuum distillation towers. From the crude unit, gentle material is delivered to the saturated gasoline plant, the place mild material is hydrotreated and separated into propane, butane, naphtha and refinery gasoline gas.

Light naphtha passes by means of a C5 / C6 isomerisation unit, where the extent of octane is increased. Heavy naphtha is directed to a cyclic catalytic reformer, the place it is transformed into a mix element with high octane. Hydrogen is produced as a co-product.

To supply benzene of chemical grade, aromatics recovery from mild reformate is carried out within the aromatics unit. Before clay therapy, jet gas from the crude unit is handled in a jet bender, which removes mercaptans.

Diesel from the crude and cracking units travels to the diesel hydrotreater, which operates at a strain of 1,250psi. The diesel hydrotreater produces extremely-low sulphur diesel with a most of eight parts per million of sulphur.

The isocracker, equipped with a two-stage design reactor, takes the heavy atmospheric gasoline oil and cracked diesel stocks. Operating at a pressure of 1,800psi, the isocracker produces naphtha and kerosene.

North side facility

Heavy oil from the vacuum tower is distributed to the north side of the refinery. Within the fluid catalytic cracker (FCC), heavy oil is damaged into naphtha and diesel. Light-finish merchandise produced within the FCC are sent to the unsaturated gasoline plant for purification. Decanted oil, additionally produced in the FCC, is bought in the number six heavy fuel oil market.

Hydrotreatment of FCC naphtha is carried out within the gasoline desulphurisation unit (GDU). The unit removes sulphur to lower than 30 elements per million by means of the prime-G 2 reactor course of, which additionally minimises octane loss.

In a two-drum coker operation, vacuum tower bottoms are thermally cracked within the coker unit. The unit makes light ends, naphtha, diesel and practically 600t of petroleum coke per day.

The sulphur recovery unit converts acid gas released from the hydrotreaters into elemental sulphur in Claus reactors. Water is treated within the boiler home, which removes hardness and supplies high-pressure steam for the refinery.

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