Graphitized Coke is a superior, high-carbon material that has been widely used in metallurgical processes. GPC, which has been produced by graphitizing petroleum coke at high temperatures, is characterized for its highly ordered crystalline structures and carbon content exceeding 98%. It is low in impurities and ensures a long-lasting performance for carbon products.
Petroleum coke (a byproduct of oil re-fining) is a material that is used in many different industries. Calcined Petroleum Coke (also known as Graphitized Petroleum Coke) and Calcined Petroleum Coke serve different industrial purposes. However, both are vital for the steelmaking sector.
Graphitized Petroleum Coke has become the standard for recarburizers in the steelmaking industry. This premium raiser of carbon is used across a range of metallurgical applications, including steel cast and smelting. Its high fixed carbon content, its low sulfur levels, and its exceptional absorption rates are what make it so attractive.
The process that turns crude oil to petroleum coke begins within the coker units of a petrol refinery. Here, the amorphous char of crude is heated to extreme temperature in the absence of air. This process transforms crude oil into a brittle gray-black coke called petcoke. It has properties similar to coal. It can also be further processed in order to produce "met coke", a more useable form of petroleum.
When petcoke reaches higher temperatures, the carbon molecules rearrange themselves into a hexagonal structure. This produces a stable and highly conductive form of graphite. This graphitization takes place at temperatures ranging from 2800 to 3000degC. This process removes volatile matter, impurities and moisture, making calcined petroleum coke ideal for carbon products production and steelmaking.
After the calcining, the petcoke goes through a heat-treatment to produce Graphitized Petroleum Coke. This form has been refined through a high-temperature graphitization treatment and has an exceptionally low impurity content. It is a crucial material for advanced battery manufacture, allowing it be used as the anode of lithium-ion and other energy storing solutions. It is an essential ingredient in steelmaking because it gives it electrical conductivity, and thermal stability.
Unlike traditional petroleum coke, which is typically loaded with volatile matter and ash, GPC has a low ash content of less than 0.5%. This minimal ash content minimizes contamination in industrial processing and ensures the quality of the carbon products it is incorporated into, such as electrodes. GPC has a low sulfur and Nitrogen content, which reduces its impact on the environment by reducing emissions of SO2 & NOx.
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