What is the elemental composition of coal and oil? Thank you.

The organic matter in coal is a complex polymer organic compound, which is mainly composed of carbon, hydrogen, oxygen, nitrogen, sulfur and phosphorus, and the sum of carbon, hydrogen and oxygen accounts for more than 95% of the organic matter. The inorganic matter in coal also contains small amounts of carbon, hydrogen, oxygen, sulfur and other elements.

It contains a lot of iron, molybdenum, calcium, etc., which is too much.

The main components of coal and oil are carbon and hydrogen.

Why can solid coal be liquefied into a liquid similar to petroleum? This is determined by the composition of coal and oil. Coal and oil are both fossil fuels, and coal is buried in the stratum by certain trees that grew on the earth tens of millions or even hundreds of millions of years ago, and gradually changed through the action of ground temperature and ground pressure in a long geological time.

Oil is made by lower animals through a process similar to that of coal. The main components of coal and oil are carbon and hydrogen, but the main components of petroleum are hydrocarbon small molecules composed of hydrocarbons, while the composition of coal is mainly large organic molecules composed of hydrocarbons, and its relative molecular mass is about 10 times that of oil. The ratio of hydrogen to carbon in coal is small, about half that of oil. When the content of hydrogen in coal is increased through certain technical measures, so that the ratio of carbon to hydrogen in coal and oil is basically the same, solid coal may become a liquid fuel similar to petroleum.

This is the basic idea of coal liquefaction, and the key to coal liquefaction is how hydrogen is added to coal.

The main component of coal is carbon and contains some beneficial elements, mainly germanium, gallium, uranium, vanadium, etc., which can be utilized. Harmful elements.

There is mainly sulfur. Phosphorus, fluorine, chlorine, arsenic, beryllium, lead, boron, cadmium, mercury, selenium, chromium, etc., sulfur is a common harmful component in coal, and other harmful elements are generally not high in coal, but extremely harmful, such as arsenic is a toxic element.

Petroleum is mainly composed of hydrocarbons, mainly alkanes, that is, alkanes, mainly alkanes containing 6 to 20 carbons. Others include naphthenes, aromatic hydrocarbons, etc.

The chemical elements contained in oil and coal are: carbon, hydrogen, oxygen, nitrogen.

Oil, also known as **, one of the main objects of geological exploration, is a viscous, dark brown liquid, a brownish-black flammable viscous liquid mined from deep underground. Mainly various: alkanes, hormonal chain alkanes, aromatic hydrocarbons"mixture.

Coal is a mineral that can be used as a fuel or as an industrial feedstock. It is a slippery ancient plant through biochemical and geological processes to change its physical and chemical properties, by"Carbon, hydrogen, oxygen, nitrogen"and other elements that make up the black solid mineral of Zen Jean Sun.

Coal and oil are carbon elements.

Coal and oil are both fossil fuels on Earth, and their main components are carbon-containing organic matter. Coal is formed from plant residues over millions of years of biochemical processes, which contain large amounts of carbon and other elements. Petroleum is formed by the remains of marine organisms through high temperature and high pressure in the deep crust, and also contains a large amount of carbon and other elements.

Therefore, coal and oil are both organic compounds that contain the element of carbon decay.

Due to the different compositions and ** of coal and oil, their chemical properties and uses are also different.

How exactly coal and oil are formed.

Coal: Under normal temperature and pressure on the surface, the plant remains accumulated in stagnant water bodies are transformed into peat or saprolite through peat or saprolite; After peat or saprolite is buried, it sinks to the depths of the underground due to the decline of the basin basement, and is transformed into lignite by diagenesis. When the temperature and pressure gradually increase, it is transformed into bituminous coal to anthracite through metamorphism.

Oil: Most geologists believe that oil, like coal and natural gas, was formed gradually by ancient organic matter through a long period of compression and heating. According to this theory, oil was formed by the transformation of prehistoric marine animals and algae carcasses.

Plants on land generally form coal. Over a long geological time, these organic matter mixed with silt and was buried under thick sedimentary rock. At high temperatures and pressures underground, they are gradually transformed, first forming waxy oil shale and later degenerating into liquid and gaseous hydrocarbons.

Because these hydrocarbons are lighter than nearby rocks, they penetrate upwards into nearby rock formations until they penetrate into the tightly impermeable, inherently empty rock formations above. In this way, the oil that comes together forms an oil field. By drilling and pumping, one can get oil from the oil fields.

Geologists refer to the temperature range at which oil is formed as the "oil window".If the temperature is too low, oil cannot form, and if the temperature is too high, natural gas will form. Although the depth at which oil is formed varies around the world, the "typical" depth is between four and six thousand meters.

Since the oil also penetrates into other rock formations after formation, the actual oil field may be much shallower. Therefore, three conditions are required for the formation of an oil field: abundant source rocks, permeable channels, and a rock formation that can accumulate oil.

Coal is a rock that contains organic matter that can be burned. Its chemical composition is mainly carbon, hydrogen, oxygen, nitrogen, and several other elements. In addition, it may contain harmful ingredients such as sulfur, arsenic, chlorine, mercury, fluorine, and useful elements such as germanium, gallium, uranium, and barium.

Coal is formed by ancient plants buried deep underground, under certain conditions of temperature and pressure, through a long era and complex chemical changes. If you cut coal into paper-like slices and put them under a microscope, you can see the cell tissue of the plant. Fossilized branches and leaves can often be found in the stones near the coal mines.

Some of the coal in the Fushun coal mine in Liaoning province occasionally contain apricot-yellow amber — fossils of insects and resin. These fossils record the origin and history of coal.

There are many types of coal. According to the carbon content of coal, it is divided into four categories: peat, lignite, bituminous coal and anthracite. Anthracite for general civilian use.

Black and ordinary coal, after chemical processing, can be used to produce gas, coal tar, fertilizers, pesticides, synthetic dyes, plastics, saccharin, pharmaceuticals and synthetic rubber and other products.

The distribution of coal strata in the world is very uneven, mostly concentrated in the temperate and subarctic zones, among which a distribution zone in the northern hemisphere is from the foothills of the Pennine Mountains in the United Kingdom to the east across France, Germany, Poland and Russia, until North China and Northeast China; The other is in the middle of North America. In the Southern Hemisphere, coalfields are found only in temperate regions of Australia and South Africa. In terms of coal reserves, Russia is the most abundant, accounting for about the world's total reserves.

The thickest coal seam is the Gaste River coalfield in British Columbia, Western Canada, with geological reserves of 10 billion tons, proven reserves of 100 million tons, and a total thickness of 300 meters.

China's coal resources are also very rich, geological reserves of about one trillion tons, coalfields are mainly distributed in Shanxi and Inner Mongolia and other provinces in North China, a I, of which only Shanxi Province reserves of 40 billion tons, northeast Fushun coalfield formation thickness of 120 meters.

In recent years, geologists have discovered the world's largest coal mine on the Antarctic continent, estimated to contain several times more coal reserves than all other places combined.