Fractional distillation involves boiling crude oil so that the various types of hydrocarbon molecules present vaporize, each in turn. The vapors are then condensed into separate batches according to type. More » Science Chemistry

Crude oil is a fossil fuel and, as the name implies, it is derived from fossils. Over time the remains of vegetation and various organisms, such as bacteria and algae, are covered by an increasing amount of soil before t... More » Science Earth Science

Crude oil is refined into a variety of petroleum products that are used, like gasoline and heating oil, according to the University of Delaware Sea Grant Program. The refining process results in three major grades of con... More » Business & Finance Industries
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Craig Freudenrich from HowStuffWorks explains that diesel fuel is made from fractional distillation of crude oil in oil refineries. The crucial elements of the oil refining process are a distillation column with several ... More » Vehicles Car Parts & Maintenance Engine Oil

Fractional distillation is a high-temperature process that separates liquids and gases from unrefined crude oil. According to experts at How Stuff Works, there is a variety of elements in crude oil that are of different ... More » Science Chemistry

Petrol is made from crude oil by removing hydrocarbons and carbon atom chains through a process known as distillation. Usually, this process takes place at an oil refinery. Distilling petrol relies on gradually increasin... More » Business & Finance Industries

Crude oil is separated into fractions by a technique called fractional distillation. This technique separates the hydrocarbons into fractions by heating the crude oil to about 400 degrees Celsius or 752 degrees Fahrenhei... More » Science Chemistry