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Petroleum - Wikipedia


The exact molecular composition of crude oil varies widely from formation to formation but the proportion of chemical elements varies over fairly narrow limits as ...

Petroleum Composition | what is the composition of petroleum


Petroleum, or crude oil as it is now usually referred too when raw, contains several chemical compounds, the most prolific being the hydrocarbons themselves ...

crude oil | petroleum product | Britannica.com


Jun 28, 2012 ... Crude oil is a mixture of comparatively volatile liquid hydrocarbons ... of sulfur, which occurs either as elemental sulfur or in compounds such as ...

Crude Oil - How Oil Refining Works | HowStuffWorks


Learn how crude oil is converted into everything from butane to gasoline. ... sulfides, disulfides, elemental sulfur); Nitrogen - less than 1% (basic compounds with ...

What is the chemical formula for petroleum? | Reference.com


The chemical composition of petroleum can vary dramatically from one sample to another, although the specific concentrations of chemical elements in crude oil ...

What is crude oil's chemical formula? | Reference.com


The chemical formula for crude oil is CnH2n+2, where n is a positive integer. Crude oil is basically a combination of various hydrocarbon molecules, which ...

Tox Town - Crude Oil - Toxic chemicals and environmental health ...


Nov 2, 2016 ... Total petroleum hydrocarbons is a term used to describe the several hundred chemical compounds that originally come from crude oil.

Petroleum - Chemistry Encyclopedia - reaction, water, uses ...


Solid petroleum is called asphalt; liquid, crude oil; and gas, natural gas. ... The number of carbon atoms in these compounds can vary from one to over a hundred. .... sunlight to elemental lead and halogen , both of which are serious pollutants.



The elemental composition of petroleum is much less variable than that of coal: 83-87% .... composition, the chemical structure of different crude oils may be very  ...

Petroleum Refining and Petrochemical Processes


and Petrochemical Processes. Crude oil: composition, classification;. Coal; Oil Shale; Tar Sand; Gas Hydrates. Faculty of Chemical Engineering and Technology.

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1. chemical composition of petroleum hydrocarbon sources


CHEMICAL COMPOSITION OF PETROLEUM HYDROCARBON SOURCES." National Research Council. 1985. Oil in the Sea: Inputs, Fates, and Effects.

Chemical Composition of Petroleum - Chemistry - About.com


Petroleum or crude oil is a complex mixture of hydrocarbons and other chemicals . Here is a look at the properties and chemical composition of petroleum.

The Origin and Chemistry of Petroleum | Pace Analytical Services


4.2 Chemical Constituents of Petroleum and Its Refined Products ... For example, the hydrocarbon type composition of a crude oil from South Louisiana ...