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In its strictest sense, petroleum includes only crude oil, but in common usage it includes all liquid, gaseous, and solid (e.g., paraffin)hydrocarbons. Under surface pressure and temperature conditions, lighter hydrocarbons methane, ethane, propane and butane occur as gases, while pentane and heavier ones are in the form of liquids or solids. However, in an underground oil reservoir the proportions of gas, liquid, and solid depend on subsurface conditions and on the phase diagram of the petroleum mixture.[8]

An oil well produces predominantly crude oil, with some natural gas dissolved in it. Because the pressure is lower at the surface than underground, some of the gas will come out of solution and be recovered (or burned) as associated gas or solution gas. A gas well produces predominantly natural gas. However, because the underground temperature and pressure are higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state. At surface conditions these will condense out of the gas to form natural gas condensate, often shortened to condensate. Condensate resembles petrol in appearance and is similar in composition to some volatile light crude oils.

The proportion of light hydrocarbons in the petroleum mixture varies greatly among different oil fields, ranging from as much as 97% by weight in the lighter oils to as little as 50% in the heavier oils and bitumens.

The hydrocarbons in crude oil are mostly alkanes, cycloalkanes and various aromatic hydrocarbons while the other organic compounds contain nitrogen, oxygen and sulfur, and trace amounts of metals such as iron, nickel, copper and vanadium. The exact molecular composition varies widely from formation to formation but the proportion of chemical elements vary over fairly narrow limits as follows:[9]Composition by weightElementPercent rangeCarbon83 to 87%Hydrogen10 to 14%Nitrogen0.1 to 2%Oxygen0.05 to 1.5%Sulfur0.05 to 6.0%Metals< 0.1%

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Is petroleum ether a element?

No, it is a molecule. Elements are stand-alone atoms.


What is the organic compound are found in petroleum?

Petroleum primarily consists of hydrocarbons, which are organic compounds made up of hydrogen and carbon atoms. These hydrocarbons can be categorized into alkanes, cycloalkanes, and aromatic hydrocarbons, with varying chain lengths and structures. Additionally, petroleum contains smaller amounts of other organic compounds, including sulfur, nitrogen, and oxygen-containing compounds, as well as trace elements like metals. Together, these components contribute to the diverse range of products derived from petroleum, such as fuels, lubricants, and petrochemicals.


Plant that distills petroleum?

There is no plant that naturally distills petroleum. Petroleum distillation is an industrial process carried out in refineries using specialized equipment to separate crude oil into different components like gasoline, diesel, and jet fuel.


Can you use settling to separate the components of petroleum?

Yes, settling can be used to separate components of petroleum, particularly in the initial stages of processing. During this process, heavier components, such as sediments and water, settle at the bottom of a container due to gravity, allowing lighter fractions to remain on top. However, more advanced techniques like distillation are typically employed to achieve a more precise separation of the various hydrocarbon components in petroleum. Settling is more commonly used for preliminary separation rather than for refining.


Is olive oil polar or non-polar?

The majority of organic compounds (including oils, fats, components of petroleum etc.) are nonpolar. The electrons in these molecules are equally shared between the contained elements.

Related Questions

Could settling be use to separate petroleum?

Well, honey, settling can indeed be used to separate petroleum. When you let petroleum sit for a while, the different components will naturally separate based on their densities. So, go ahead and let that petroleum settle like a fine wine – just make sure to handle it safely and responsibly.


What is petroleum atomic number?

Petroleum is a naturally occurring complex mixture of hydrocarbons. It does not have an atomic number like individual elements, as it is a combination of different elements such as carbon and hydrogen.


Is petroleum a gas or fuel?

petroleum is a fuel but not pure form of fuel it refined to make it pure and from petroleum many components extracted such as CNG, Diesel etc.


Name the two elements which are present both in cng and petroleum?

The two elements present in both compressed natural gas (CNG) and petroleum are carbon and hydrogen.


Is petroleum an element?

Petroleum is a fossil fuel! It is composed of several elements and is not an element itself.


How many cubic meters of liquid fuel in a ton?

The answer will depend on what the fuel is. Different components of petroleum have different densities and so a ton will occupy different volumes.The answer will depend on what the fuel is. Different components of petroleum have different densities and so a ton will occupy different volumes.The answer will depend on what the fuel is. Different components of petroleum have different densities and so a ton will occupy different volumes.The answer will depend on what the fuel is. Different components of petroleum have different densities and so a ton will occupy different volumes.


What is the difference between plutonium and petroleum?

They are different elements.


Which are the two elements present in both CNG and petroleum?

Hydrogen and Carbon :) hope it helped .. :)


What is the most organic compound found on earth?

These are components of petroleum and living beings.


Is diesel a hazardous material?

Diesel fuel is a petroleum product, with the usual hazards associated with such products.Diesel exhaust is a combination of a large number of partially burned hydrocarbons. The exhaust contains irritating components, smelly components, and also components thathave been shown to cause cancer.


What substances make up petroleum?

Its made of petroleum and th elements in petroleum are carbon and hydrogen make up 90%. The other elements are nitrogen, oxygen, sulfur


Is petroleum ether a element?

No, it is a molecule. Elements are stand-alone atoms.