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A sedimentary and combustible rock is called coal. It is generally found in black or brown color and contains large amounts of carbon and hydrocarbons. Coal is classified as a non-renewable fuel because it takes millions of years to form. The rock contains energy stored by plants that lived in swamp forests hundreds of millions of years ago. There are different types of coal, one of which is anthracite coal, which we will discuss in more detail below.
One of the oldest coals formed in the earth is anthracite coal. Anthracite coal is formed under high pressure and heat in the depths of the earth and for many years, so it is one of the hardest and most compact types of coal. Hard and compacted coals have the ability to generate more heat during combustion than newly formed and less compacted coals.
1. 80 to 90% of it is composed of carbon
2. When burning this coal, 3278 to 3782 kcal of energy is released
3. Burning this coal is very slow
4. The contents of this coal have moisture
5. Its color is glossy black and when you touch this coal, your hand or surface does not turn black
Due to the unique properties and characteristics of this type of coal, this coal is used in many industries and cases, the most important of which are the following:
1. Since this coal produces many flames when burning, so this coal is widely used for heating residential buildings.
2. Use of this coal as fuel for trains because this type of coal produces the least pollution and environmental pollutants when burned.
3. Preparation of activated carbon based on coal, which is used in steelmaking
4. Use as a base material in petrochemicals
5. Use in refineries
6. Use in water and sewage treatment plants
7. Production of various types of iron ore pellets
8. Can be used in the construction of various melting furnaces
Due to inadequate treatment standards or lack of adequate supervision of the treatment process, drinking water often contains chemicals, various particles, some bacteria, organic matter and various toxins. Activated carbon filters can eliminate these substances in the water. .
Activated charcoal filters can be installed at the water consumption site and filter the water before use. Anthracite coal filters are used in most treatment plants and various filtration units, along with other filtration methods, to purify water.
Anthracite filters are used in the purification process to remove particles that have already been deposited in the solution, and after this stage, other chemical methods are usually used to improve water quality. The use of these anthracite charcoal filters at the molecular filtration level is generally not recommended because their pores are so small that they are much smaller than the size of the molecules that need to be destroyed. But anthracite filters can absorb suspended particles as water passes through them.
Activated carbon powder is produced by removing volatile compounds and burning carbon to increase the pore size of the carbon, to the point that the result looks more like a molecular
. Depending on the pore size of activated carbon powder, activated carbon filters can be designed to selectively filter particles of a certain size. Filtration in activated carbon is done in such a way that the particles are absorbed by the surface of the carbon grains and are trapped in their pores.
1. Its particle size
2. Apparent density
3. The amount of ash used in its composition
4. Its moisture content
Ahan Pouya with more than a decade of best-selling experience, adheres to professional and ethical principles in the field of selling and buying at inside and outside the borders of Iran, helping you in the steel industry.
