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Crude oil is heated in a series of heat exchangers by exchanging heat with products and column pumparounds. Final heating is done by a fire heater before entering the atmospheric column. The overhead product is offgas and light naphtha. Heavier cuts are taken as sidedraws and may include heavy naphtha, jet (kerosene), diesel, and atmospheric gas oil. These products are stabilized in sidestrippers using either reboilers or stripping steam. The naphtha, kerosene, and diesel products are processed further in downstream units such as reformers and hydrotreaters. The atmospheric gas oil is usually combined with the light vacuum gas oil and heavy vacuum gas oil (see paragraph below) and sent to an Fluidized Catalytic Cracking Unit (FCCU). It may or may not be sent to a hydrotreater prior to being sent to the FCCU. The bottoms of the atmospheric column is heated further and sent to a vacuum column, which allows the heavier molecules to vaporize at a temperature lower than it would if it was at atmospheric pressue. This is to avoild cracking due to high temperatures. The side products are the light vacuum gas oil and heavy vacuum gas oil mentioned above. The bottoms of the vacuum column (resid) is usually sent to a coker where it is thermally cracked to lighter products.
What else can I help you with?
List four pre-planting activities and explain each of them?
LIst 4 pre-planting operation.
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Put the word unit in a sentence?
The surgeon needs one more unit of blood to complete the operation. Currently, our condominium complex has only one empty unit. I liked math until we got to the geometry unit. After suffering injuries in battle, the soldier was reassigned to a noncombat unit. Grandpa suffered a severe heart attack and is now in the intensive care unit at the hospital.
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Explain construction operation of de Sauty bridge?
explain construction & operation of de sauty bridge
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A unit officer(from the Special Operations unit) will go to the Join Forces commander and explain his units capabilities and why they can be of importance to the commander, and to the operation.
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Explain barangay as a unit of society?
the barangay of a unit of society
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its impossible
What is difference between unit operation and unit process?
process is a set of operation for example in a sugar mill the processing involve 1. bringing out juice from sugarcane. 2. heat them. 3.refine them.etc. here process is the combination of all of the above stated tasks (1,2,3,). on the contrary, each of the tasks of a process is operation for example the task 1,2,3, each are operation.
Is the crude sour or wet service?
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Explain Error handling during file operations?
explain error handling during file operation?
Is weight a fundamental unit?
Is weight a fundamental unit? Please explain Regards
Explain the difference between molecule and formula unit?
The formula unit is the representation of a molecule.
