Firstly the long chains of molecules are broken down in a process known as cracking, this is when the crude oil is passed over a catalist and broken down into smaller more usable substances. These are then heated and distilled into fractions and are separated into catergories of volatility. This is known as fractional distilation. It is also known as cracking.
Petroleum gas is not liquefied at the outset. Crude oil is slowly and safely heated, which causes different components to become gases at different temperatures. These products are then distilled into the various petroleum products that crude oil produces.
Propane comes out of the process as a gas, both from processing crude oil and natural gas. It is then compressed until it becomes a liquid.
Immediately after coming to the surface, water is removed from crude oil via a simple separation based on density differences.
The first step in processing crude oil once it reaches the refinery is removal of the salts (sodium, magnesium, and calcium chloride, barium and magnesium sulfate, etc.). This step is accomplished in a unit known as an electrostatic desalter, which adds fresh water back to the oil and passes an electrical current through it.
It distills it to produce lots of different fractions, some of the heavier fractions are reformed or broken down to more useful substances using cracking.
at the refinery
A refinery is where crude oil is turned into gaosline and oil.
All the processes involved in the refining of crude oil are chemical processes; this is the field of petrochemistry.
The main non-crude oil is Natural Gas Liquid. Other non-crudes include condensates, non- conventional liquids, and refinery gains.
You can separate substances in a crude oil by distillation process. But you have to know what are the boiling points of each of the substance in the crude oil.
Crude oil is separated by fractional distillation in an oil refinery.
A crude oil refinery is a factory. The factory takes the crude oil, and turns it into useful products, like gasoline.
Refinery
by refining crude oil
An oil refinery
After crude oil is removed from the ground, it is sent to a refinery by pipeline, ship, or barge. At a refinery, different parts of the crude oil are separated into usable petroleum products.
Purifies the crude oil coming in to be useful for Gasoline, Diesel, etc.
You might make gas by refining oil in an oil refinery. This process begins with the gathering of crude oil which is then distilled into a usable product.
at the refinery
Refinery
A refinery is where crude oil is turned into gaosline and oil.
Benzene is a natural part of crude oil along with hundreds of other chemicals. Benzene forms about 1% or less of crude oil. In the oil "cracking process" and related processing at the refinery various parts of chemicals from the crude oil can be recombined to form additional benzene.