How to reduce the viscosity of coal tar

Reduce the viscosity of coal tar: control the impurity quantity caused by smokeless coal loading or control the initial cooling temperature.

Coal tar is one of the important products in coking industry, and its output accounts for about 3%~4% of the coal in the furnace. Its composition is extremely complex, and in most cases, it is used after being specially separated and purified in the coal tar industry. Various products, such as mothballs, asphalt, plastics, pesticides, etc. It can be separated from various fractions of tar by further processing.

Coal tar is also called coal paste, coal distillate oil and coal tar solution. It is a black or dark brown viscous liquid, which is obtained in the coking process of coal. Its specific gravity is greater than that of water, and it has certain solubility and special smell. It is flammable and corrosive. Coal tar is one of the products in the crude gas produced by pyrolysis of coal used in coking industry, and its output accounts for about 3%~4% of the coal in the furnace. At normal temperature and pressure, its product is black viscous liquid. Coal tar is the main raw material of coal chemical industry, with tens of thousands of components, mainly including aromatic hydrocarbons such as benzene, toluene, xylene, naphthalene and anthracene, as well as organic compounds such as aromatic oxygenated compounds (such as phenolic compounds such as phenol) and nitrogen-containing sulfur-containing heterocyclic compounds. Coal tar can be divided into fractions with different boiling points by fractionation. Coal tar is an important raw material for producing plastics, synthetic fibers, dyes, rubber, medicine, high temperature resistant materials and so on. It can be used to synthesize industrial products such as pesticides, saccharin, dyes, medicines and explosives.