Crude oil is a mixture of comparatively volatile liquid hydrocarbons (compounds composed mainly of hydrogen and carbon), though it also contains some nitrogen, sulfur, and oxygen. Those elements form a large variety of complex molecular structures, some …

2020年7月10日 · The composition of crude oil varies with the geographical location, age, and depth of the well. Hydrocarbon (Hydrogen and Carbon) content in crude can be as high as 97% in lighter Paraffinic crude and as low as 50 % in heavy and Bitumen crude.

Chemical Constitution of Crude Oil. Crude oil contains organic compounds, heteroatom compounds (S,N,O), hydrocarbons (C, H), metals and organic (Ni, V, Fe) and inorganic (Na +, Ca ++, Cl-) compounds as listed in Figure 1.7. Compounds that contain only elements of carbon and hydrogen are called hydrocarbons and constitute the largest group of ...

In this chapter, the composition of crude oil is presented using the chemical approach and by applying the physical methods traditionally used. Composition of natural gas is included. Classification and characterization of crude oils based on …

2019年12月6日 · The composition varies widely depending on where and how the petroleum was formed. In fact, chemical analysis can be used to fingerprint the source of petroleum. However, raw petroleum or crude oil has characteristic properties and composition.

2024年6月23日 · Crude oil systems from various oil-producing regions of the world were used in the development of the correlations. These crude oils can exhibit regional trends in chemical composition, placing them into one of the following groups: Paraffinic; Napthenic; Aromatic

The chemical composition of crude oils from different producing regions, and even from within a particular formation, can vary tremendously. Crude oils contain thousands of different chemical compounds owing to processes dur ing petroleum formation resulting in "molecular scrambling.

2021年5月11日 · Crude oil is a complex mixture of different hydrocarbons that are composed of hydrogen and oxygen molecules. These two elements make up ~95% of crude oil. Crude oil is created when plant and animal matter undergoes complex decomposition deep underground under high temperatures and pressure.

Petroleum (or crude oil) is a complex, naturally occurring liquid mixture containing mostly hydrocarbons, but containing also some compounds of oxygen, nitrogen and sulfur. It is often referred to as the “black gold.”

atoms. The exact chemical composition and structure of crude oil depends on which critters originally went into it, how long it baked underground, and at what temperature. Oil refineries Once it comes out of the ground, the oil companies want to turn the complicated soup of molecules into the standard recipe for gasoline.