Main Application of Calcined Petroleum Coke Types of Calcined Petroleum Coke

The main uses of calcined petroleum coke are prebaked anodes and anodic oxidation pastes commonly used in electrolytic aluminum plants, carbon additives in the field of carbon production, graphite electrodes, industrial silicon and fuels in smelters, etc. Among them: low-sulfur, high-quality cooked coke, such as needle coke, is mainly used in the production of extremely high-power graphite electrodes and some special carbon products. Needle coke is a new technology for electric furnace steelmaking in the ironmaking industry. The main raw materials used; medium sulfur and ordinary cooked coke are mostly used for smelting; high sulfur and ordinary raw coke are used for chemical production, such as the production of calcium carbide, carbon-carbon composite materials, etc., and are also used as metal casting Waiting for fuel.

What is calcined petroleum coke

Calcined petroleum coke is a product that is converted from light and heavy oil through extraction, then high-quality oil through the whole process of thermal cracking. From the appearance point of view, the coke is irregular in shape and different in size. The small black pieces (or particles) have a metallic texture, and the charred particles have a porous structure. Calcined petroleum coke has its unique physical and mechanical properties and characteristics of machinery and equipment. It is non-volatile carbon, organic waste gas and mineral sediments with a heating part, that is, sulfur, metal compounds, water, ash and other compounds. Specifications determine the physical characteristics of coke.

Types of Calcined Petroleum Coke

There are many ways to classify calcined petroleum coke. According to different production processes, calcined petroleum coke can be divided into delayed time coke, air conveying coke and kettle coke. The main type of calcined petroleum coke in my country is delayed time coke, and the proportion of air conveying coke and kettle coke is not large. According to the different microstructure, calcined petroleum coke can be divided into needle coke and spherical coke. Needle coke refers to the ultramicrostructure, most of which are textured cellulose or fibrous coke, which is characterized by easy graphitization and low linear expansion coefficient, most of which belong to high-quality coke, generally used for Low coefficient of linear expansion coke in the industrial production of graphite electrodes. Spherical coke refers to coke in the ultramicrostructure, most of which are particles or broken coke.