CPC is used as a raw material to make aluminum anodes. The calcined petroleum coke is made by heating high-quality raw "green" coal in rotary kilns to temperatures between 2192 and 2460degF. These extreme temperatures burn off moisture, remove all hydrocarbons left in the coke and modify its crystal structure to create a denser, more electrically conduct product. After a few days, the calcined material is cooled at a temperature below 200degC. The product can now be moved safely into storage, such as silos, trucks and railcars.
The primary aluminum industry represents approximately 80% of the total demand for calcined coke. Rest of the demand comes from other industries like steel for recarburisation as well as remelting coal and carbon ingots. CPC can also be used to produce graphite for steel, non-ferrous aluminium and carbon anode in alumina smelting.
Petrol coke is made by thermal cracking heavy oil, unlike traditional coal which burns in blast furnaces. The coke is a solid black or dark grey hard material with metallic luster, containing approximately 90%-97% carbon and 1.5%-8% hydrogen. It also contains ash as well as other heavy elements.
To meet the growing needs of the aluminum industry, smelters require more and better quality petcoke. Inconsistent quality and supply problems can affect smelter operations. The use of petcoke with a consistent quality can help smelters reduce their net CO2 emissions while meeting their operating goals.
Aminco is able to offer a large range of rotary coke products and a wide variety of kiln sizes. This allows them to cater for the different needs of every smelter. The company has worked closely with customers for many years to understand the challenges they face and provide feedstock that will improve their performance.
Aminco, in addition to smelter-grade coke, also provides fuel-grade and anode grade petcoke. They also offer recarburized remineralized coke. Fuel grade coke has low sulfur content and a lower volatile matter percentage with sulfur and heavy materials, making it a preferred raw material by many smelters. The anode-grade has a higher volatile content but is also lower in sulfur and heavy materials, making it the ideal coke for use in aluminum smelting.
Moreover, recarburized carbon is a highly sought-after source of carbon in various graphite and other carbon-based applications. Coke can also be used in the production of graphite and carbon paste products as well as King Kong sand or food grade Phosphate. It can also be used as a raw material to make silicon carbide or calcium carbide. The market for the recarburized koke is expected grow rapidly over the forecast period.
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