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What are the uses of coal tar

Release Time:

Jun 07,2023

Coal tar is generally used as a raw material for processing and refining to produce various chemical products, and it can also be used directly. As a batching component of industrial briquette, coke and coal-based activated carbon binder, it can also be used as raw material for fuel oil, blast furnace injection fuel, wood preservative oil and burnt carbon black.

Coal tar is generally used as a raw material for processing and refining to produce various chemical products, and it can also be used directly. As a batching component of industrial briquette, coke and coal-based activated carbon binder, it can also be used as raw material for fuel oil, blast furnace injection fuel, wood preservative oil and burnt carbon black.

Coal tar is an important raw material for the production of plastics, synthetic fibers, dyes, rubber, medicines, high-temperature resistant materials, etc. It can be used to synthesize various industrial products such as insecticides, saccharin, dyes, and medicines.

The tar produced during the dry distillation of coal is a black or dark brown viscous liquid with a pungent odor. According to the carbonization temperature, coal tar is divided into low-temperature coal tar, medium-temperature coal tar and high-temperature coal tar. Coal tar obtained in coke production belongs to high temperature coal tar. It is one of the coke oven gas purification products condensed and separated during the crude gas cooling process.

The phenolic compounds in medium and low temperature coal tar are mainly low-level phenols, which can be extracted by chemical extraction as chemical raw materials. The distillate after extraction of lower phenols will be an excellent raw material for hydrogenation to produce high cetane number diesel oil. Through hydrotreating, medium and low temperature coal tar can be used to produce diesel, gasoline and other vehicle engine fuel oil and chemicals.

Compared with medium and low temperature coal tar, it is more difficult to hydrogenate high temperature coal tar to fuel oil. According to the traditional processing technology, the fractions of high-temperature coal tar can be further processed to separate a variety of chemical products.

In short, coal tar is an indispensable and important raw material in the manufacture of chemical raw materials and industrial products. Under the premise of reasonable use, coal tar can also contribute to energy conservation and environmental protection.