The Application of Petroleum Coke

Time:2013-08-27 10:27    Author:clirik

Petroleum coke is developed along with the oil industry, is the residual oil by delayed coking process of a coke. The primary USES of petroleum coke is after ultra-fine grinding mill, widely used in metallurgy, chemical industry and other industries as raw materials for the electrodes or production of chemical products.

According to the different characteristics: It can be divided into needle coke, focal or spherical projectile coke, sponge coke, coke breeze.
Form coke: has obvious acicular structure and fiber texture, main functions of steelmaking in high power and ultra-high power graphite electrode
Form coke: has obvious acicular structure and fiber texture, main functions of steelmaking in high power and ultra-high power graphite electrode

1) Needle coke: has obvious acicular structure and fiber texture, main functions of steelmaking in high power and ultra-high power graphite electrode
2) Sponge coke: high sulphur, high moisture content, surface roughness, the price is high
3) Focal or spherical projectile coke: shape is round, 0.6 ~ 30 mm in diameter, with smooth surface so that the moisture content is low. Is generally from the production of high sulfur high asphaltic residual oil, can only be used for power generation, cement and other industrial fuel.
4) Coke breeze: runoff fluidized coking process, the particles in (0.1 ~ 0.4 mm in diameter), volatile high thermal expansion coefficient, cannot be directly used for electrode preparation and carbon industry.

Petroleum coke visual quality for graphite, smelting and chemical industries. Low sulfur, high quality of burning coke such as needle coke, mainly used in the manufacture of ultra high power graphite electrode, and some special carbon products; In the steelmaking industry needle coke is important to the development of new technology of electric furnace steelmaking material. Burning coke, sulfur, ordinary in a large number of used in aluminium. High sulfur, the life of the ordinary coke, used in chemical industry production, such as manufacturing calcium carbide, silicon carbide, etc., as the use of fuels such as metal casting. The production of petroleum coke in China, most belong to low sulfur coke, graphite is mainly used for aluminium and manufacturing.

The other is mainly used for preparing carbon product, such as graphite electrodes, anode arc, steel, non-ferrous metals, aluminium purposes; Preparing carbonization silicon products, such as all kinds of grinding wheel, burning on, sand paper, etc.; The calcium carbide for making goods for the production of synthetic fiber, acetylene and other products; Can also be used as a fuel, but as fuel need grading type impact for superfine grinding, grinding equipment made by JZC - 1250 coke powder before burning, is currently the main use of coke powder as a fuel some glass factory, factory of coal-water slurry, etc.