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Semi refined paraffin wax manufacturers to help you uncover the mysteries of the oil and gas
The chemical composition of oil and gas mainly include carbon (C) and hydrogen (H) two kinds of chemical elements, is a mixture of a variety of compounds, is the occurrence of the underground rock pore liquid and gas combustible minerals.In terms of quality carbon accounted for about 83-87%, hydrogen accounts for about 12-14%.These two elements together, representing about 97% to 99% of the total oil!In the remaining 1% - 3%, sulfur, oxygen, nitrogen, and trace amounts of vanadium phosphorus,, potassium, nickel, silicon, iron, calcium, magnesium, sodium and other elements.But the trace element, has formed many non hydrocarbon compounds.Carbon is a different kind of chemical element.Other chemical elements combined with hydrogen, can form a or two compounds.For example, HCl, H2S, H2O, H2O2, etc.The carbon is different.Carbon is everywhere in the world.Bread and potatoes contains carbon, meat, fish, sugar, are made up of carbon compounds, we the human body is basically composed of carbon.Made up of carbon compounds was more than three million species, forming a complex subject, organic chemistry;Compounds, and other elements, only fifty thousand or so reluctantly, form of discipline known as inorganic chemistry.
Hydrocarbon is short for hydrocarbons, divided into saturated hydrocarbon and unsaturated hydrocarbons.Oil of hydrocarbon is more saturated hydrocarbon, and unsaturated hydrocarbons such as ethylene, acetylene, generally only in the process of oil can receive.The hydrocarbon oil has three types:
(a) alkane.Is to a single bond between carbon atoms connected chains of hydrocarbons.Due to the number of carbon and hydrogen atoms of hydrocarbon is different, the result makes the oil contained in the gap of large and small difference between hydrocarbon molecules.Alkanes are based on the number of carbon atoms and molecules contained in, named after the number of carbon atoms in the 10 below, from 1 to 10, in turn, use a, b, c, d, e, f, g, essien, nonyl, decane, number of carbon atoms in more than 11, use numerals.The paraffin oil including are alkanes and isomerization alkane.In the corresponding normal alkanes was high in paraffin wax base oil content;Isomerization alkane in asphalt base oil content is high.Paraffin hydrocarbons is also called alkanes.Alkanes, the formula for the general formula CnH2n + 2, where "n" means the number of carbon atoms in molecules."2 n + 2" said the number of hydrogen atoms.Under the atmospheric pressure, C1 - C4 alkane gas, exists in natural gas;C5 - C15 is a liquid paraffin, oil is the main component of;More than C16 paraffin for solid state.
(2) the naphthene.As the name suggests it is loop structure.The most common is five or six carbon atoms of carbon atoms, the former is called cyclopentane, the latter is called cyclohexane.Naphthene the formula for the general formula CnH2n.Naphthene and naphthenic hydrocarbons.
(3) the aromatic hydrocarbon.Also known as aromatic hydrocarbons.Generally have one or more of the six membered ring with special structure (benzene).The simplest aromatic hydrocarbon is benzene, toluene, xylene.They from oil refining process platforming device can be in production.The general formula CnH2n - of aromatic hydrocarbon formula is 6.
Natural gas from the definition of generalized refers to all that exists in the nature of natural gas, including atmosphere, hydrosphere, biosphere and lithosphere in various natural gas process.And what has long been common definition of "gas", from the perspective of energy of narrow definition, refers to the natural reserves in the formation of a mixture of hydrocarbon and non-hydrocarbon gases, mainly exist in the oil field gas, gas gas, coal-bed methane, mud volcanoes and biological gas generated gas.Natural gas can be divided into the associated and non-associated gas oil.With crude oil symbiosis, and crude oil was produced at the same time call associated gas of oil field gas;Non-associated gas including pure natural gas field gas and condensate gas field, all exist in the gas phase in the formation.Condensate field gas wellhead flowing from the formation, as the pressure and temperature drop, separation of gas and liquid two phase and gas phase is natural gas condensate field, the liquid is condensed liquid, gas condensate.
Natural gas hydrocarbon gases with methane is given priority to, and ethane, propane, butane gas, etc.Methane content is more than 95%, only contains a small amount of ethane, or no more than a small amount of ethane gas hydrocarbon components called dry gas.Non hydrocarbon gas is often N2, CO2, CO, H2S, H2 and trace inert gas.
Natural gas is a kind of multi-component gaseous mixture gas composition varies widely in different fields.
The main composition of natural gas is methane, it is a colorless, non-toxic, non-corrosive flammable gas.Natural gas in the air explosion limit of 4.5% ~ 13.1%.Gas density is lighter than air, when the leak occurs, as long as the leaked space is not sealed, leak out of the gas will soon send out in the air.
Compared with the energy such as coal, oil, natural gas in the combustion process can produce very little material can affect the health of the human respiratory system, the carbon dioxide is only about 40% of the coal, the sulfur dioxide is very few.The combustion of gas generating waste residue, waste water, after have the use of safe, high calorific value, clean and other advantages.