Home > Petroleum Instruction  > Composition of petroleum
Petroleum Instruction
Sulfur compounds in petroleum
Composition of petroleum
Contact Us
Mob/Whatsapp: +0086-13373761810
Tel: +0086-13373761810
Fax: +86-371-55013221
Skype: Xintong1109
E-mail: emma@odifei.com.cn Contact Now

Delivery to Russia

This is tons waste tyre pyrolysis equipment

Oil sludge

1.Sludge concept Oily sludge is one of the main pollutants in the petrochemical industry where the crude oil is mixed with the oil or other medium, and the oil can not be recovered directly and may cause pollution. 2.Brief introduction of sludge Petrochemical enterprises sewage treatment system to produce sludge mainly from the grease trap of the sediment, flotation pool scum, the remaining activated sludge, collectively referred to as "three mud." Oily sludge also includes contaminated sludge in steel smelting, sludge repayment of heavy oil in the process of repairing shipyards Oily sludge is usually composed of oil-in-water (o / w), water-in-oil (w / o) and suspended solids consisting of a stable suspension of emulsion system, poor dehydra

customer factory show

This is the customer's spot map. His handling capacity is 10 tons per day, the raw material is waste tire. The finished products are fuel oil, steel wire and carbon black.

Customer equipment display

Customer equipment display

6 tons waste tire pyrolysis plant

6 tons waste tire pyrolysis plant This is 6 tons waste tire pyrolysis plant . We shiped to Kazakhstan by train.

Automatic slagging screw

This is a fully automatic carbon black slag discharge system. Can achieve no pollution, no dust.

Deliver goods

How to choose a suitbale factory to product the waste tyres recycling machine?

How to choose a suitbale factory to product the waste tyres recycling machine? More and more people are optimistic about the project of refining equip...

Customer factory

This is our customer factory. This plant is 10 tons capacity per day.It can pyrolysis waste tire,waste plastic and waste rubber.Safety, environmental protection, pollution-free.

50 tons heavy fuel oil distillation equipment instillation

50 tons heavy fuel oil distillation equipment instillation

Composition of petroleum

Composition of petroleum

Primary coverage
1.General properties, elemental composition and fractions of petroleum
2.Hydrocarbon composition of petroleum fractions
3.Non hydrocarbon compounds in petroleum
4.Trace elements in petroleum
5.Colloid and asphaltene in residue and residuum

General properties of petroleum

1. Physical properties
Petroleum (or crude oil) is usually a black or brown flowing or semi-flowing viscous liquid with a relative density between 0.8 and 0.98. The oil produced in different parts of the world varies in varying degrees in nature.

The solidification point and wax content of crude oils in main oilfields in China are relatively high, and the relative density is mostly between 0.85 and 0.95, which belongs to heavy conventional crude oil.

 Element composition
Basically, it consists of five elements: carbon, hydrogen, sulfur, nitrogen and oxygen. (there are also some trace elements).
In crude oil:
The mass fraction of carbon is generally 83%~87%
The mass fraction of hydrogen is 11%~14%
The mass fraction of sulfur is 0.05%~8%
The mass fraction of nitrogen is 0.02%~2%
The mass fraction of oxygen is 0.05% ~2%

Hydrocarbon content and hydrogen / carbon ratio

The ratio of hydrogen to carbon atoms in crude oil reflects the properties of crude oil. The ratio of hydrogen to carbon atoms in light crude oil or paraffin-based crude oil is higher than that in heavy crude oil or naphthenic crude oil.

The ratio of hydrogen to carbon also contains an important structural information, which is a parameter related to the chemical structure.
Alkanes > naphthenic hydrocarbons > aromatic hydrocarbons

Contents of sulfur, nitrogen and oxygen

Sulfur, nitrogen and oxygen in petroleum do not exist as elements, but as compounds (derivatives of hydrocarbons). It has great influence on the processing technology of petroleum and the performance of petroleum products. Example: catalyst poisoning and environmental pollution.

China's crude oil is low sulfur and high nitrogen. Most of the crude oil has a sulfur content of less than 1% and a nitrogen content of more than 3 per thousand.