High-temperature coal tar knowledge
1. The properties of high-temperature coal tar.
High-temperature coal tar is a dark brown viscous liquid with a special odor and corrosiveness. Its relative density is generally in the range of 115-1.2, with a high hydrocarbon ratio and high sulfur content. High-temperature coal tar contains a large amount of organic compounds and minerals, and the types and contents of these substances vary depending on factors such as coal type, coking method, and temperature.
Second, the composition of high-temperature coal tar.
High-temperature coal tar is mainly composed of carbohydrates, fats, polycyclic aromatic hydrocarbons, heterocyclic compounds, oxygen-containing compounds, nitrogen-containing compounds and sulfur-containing compounds. Among them, polycyclic aromatic hydrocarbons are the most abundant compounds in high-temperature coal tar, and they are the raw materials and intermediates of coking products.
3. Processing technology of high-temperature coal tar.
There are two main processing technologies for high-temperature coal tar: atmospheric distillation and vacuum distillation. Atmospheric distillation refers to heating high-temperature coal tar to a certain temperature at atmospheric pressure to separate it into different fractionsVacuum distillation refers to the heating of high-temperature coal tar to a certain temperature under reduced pressure to separate it into different fractions. Through these two processes, a variety of different products can be obtained, such as fuel oil, asphalt, chemicals, etc.
Fourth, the application of high-temperature coal tar.
High-temperature coal tar has a wide range of application value, it can be used as a raw material for fuel oil, can produce various chemicals, and can also be used to make waterproof materials, coatings, rubber additives, etc. In addition, high-temperature coal tar can also be used to make lubricants, detergents, etc.
5. Storage and transportation of high-temperature coal tar.
High-temperature coal tar is highly corrosive and toxic, so it needs to be stored and transported with caution in safety. The container for storing high-temperature coal tar should be airtight, away from direct sunlight and high temperatures, while keeping the container clean and dry. Special means of transport should be used for transportation, mixing with other substances, and at the same time to prevent leakage and environmental pollution.
Sixth, the environmental protection of high-temperature coal tar.
High-temperature coal tar will produce a large number of pollutants such as exhaust gas, waste water and solid waste during production and use, which will have a serious impact on the environment and human health. Therefore, it is necessary to pay attention to environmental protection issues in the production and use of high-temperature coal tar, and take effective measures to reduce the emission of pollutants and dispose of waste. At the same time, enterprises also need to strengthen supervision and management, improve environmental awareness and responsibility, and protect the environment and human health.
7. The future development of high-temperature coal tar.
With the continuous development of the energy and chemical industries, the application prospect of high-temperature coal tar is becoming more and more broad. In the future, high-temperature coal tar will be more widely used in fuel oil, chemicals, materials and other fields. At the same time, with the continuous progress of science and technology and the improvement of environmental awareness, the processing technology and production technology of high-temperature coal tar will also be continuously improved and perfected, which is more efficient, environmentally friendly and safe.