Production of needle coke from oil and coal raw materials

Needle coke is a carbon product with unique physical properties, used to produce a wide range of graphite materials for the most important fields of engineering and technology. The industrial production of needle coke is based on the delayed coking of polyaromatic raw materials and is localized in a limited number of countries (mainly in China, USA, Japan, Korea). In Russia, the need for needle coke for the dynamically developing domestic steel and other industries is provided exclusively through imports. The article considers the chemico-technological bases of the formation of needle coke, the influence of the component composition of raw materials and the parameters of the carbonization stages on its quality. A brief overview of the production methods of needle coke and the types of traditional raw materials used to produce it is presented. The data on the methods of modifying traditional raw materials and the possibility of using alternative sources are presented, which makes it possible to expand the raw material base for the production of needle coke and ensure the possibility of regulating its properties.