Characteristics of High-Temperature Coking Tar of Volatile-Rich Petroleum Coke

—The properties of tar from the high-temperature coking of volatile-rich petroleum coke (CA, coking additive) are compared with the properties of coal tar. According to thermogravimetric data for the residue at temperatures beyond 360°C, the content of high-boiling components is considerably higher for petroleum tar than for coal tar. However, its yield of coke residue is lower than for coal tar. The petroleum tar contains polyaromatic hydrocarbons and heterocyclic sulfur-containing compounds, both of which are also found in coal tar. However, much larger quantities of sulfur-containing quantities are seen in petroleum tar, while the content of individual polyaromatic hydrocarbons is much lower.