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Carbon Raiser Calcined Petroleum Coke

Calcined Petroleum Coke is made by delayed coking of residues from oil refineries. It has high fixed carbon content and low volatile & sulphur contents. It is extensively used during Aluminium smelting, carbon additive manufacture and foundry as well as for conductive backfill in ground electrode station.

It is available in a size range of 1-5 mm. It can also be briquetted by using organic binders under high mechanical pressure to form coke briquettes.

High Carbon Content

We process calcined petroleum coke according to customer specifications. This product can be used as a carbon additive. It has very low sulphur content and high fixed carbon. We supply this material to every steel manufacturer from ingot manufacturing to beams & coil manufacturers.

This is a key ingredient in aluminum smelter anodes and plays a critical role in the production of aluminum worldwide. Carbon raiser is made by sizing and heating high quality green petroleum coke (RPC) in rotary kilns to temperatures of around 1400-1500 C. The calcination process removes all excess moisture, extracts any remaining hydrocarbons and changes the chemical structure of the RPC to yield a highly refined product with an improved crystal structure, density and electrical conductivity.

The resulting low sulphur, low nitrogen and high fixed carbon carbon is called Carbon Raiser or Calcined Petroleum Coke (CPC). It is a raw material for making graphite electrodes and is used in the iron and steel smelting, casting and recarburization processes.

Low Sulfur Content

Carbon raiser calcined petroleum coke is used as an additive in iron and steel smelting and casting to increase the carbon content of the final product. It is made from unique high quality anthracite coal and has low ash content. It also has low sulfur content.

It is a byproduct of the coker unit in crude oil refineries. The raw material is sized and fed into a rotary kiln where it undergoes a process called “calcination.” This high temperature process de-moisturises the coke, extracts all volatile materials and changes its crystalline structure to make it denser with improved electrical conductivity.

Metallurgical coke or met coke is high-quality, tough and resilient carbon that finds use in a wide variety of industrial applications, including but not limited to conductive flooring, ceramic packing media, friction and anti-corrosion materials, foundry coatings and carbon raisers. It is manufactured through destructive distillation of various blends of bituminous coal using a series of kilns.

High Electrical Conductivity

Calcined petroleum coke is made by placing high quality raw “green” petroleum coke into rotary kilns and heating it to temperatures of between 1200 and 1350 @C (2192 and 2460 @F). The calcination process burns away the volatile matter and extracts the remaining hydrocarbons. This results in a much denser and more electrically conductive product.

After calcining, petroleum coke has a high fixed carbon content, low sulfur, low ash and low porosity, making it an ideal material for use as a carbon additive. Our carbon raiser is used by steel manufacturers to make graphite electrodes for the aluminum manufacturing industry, and as a coal substitute in the production of cast iron and high quality steels.

The average heat transfer coefficient of calcined petroleum coke decreases as the velocity porosity increases. This is because the initial total heat quantity reduces with increasing velocity porosity, and as a result the temperature at the heat exchanger outlet also decreases.

Low Ash Content

The low ash content of carbon raiser calcined petroleum coke makes it an excellent choice for use in applications that require tough, resilient and wearing carbon materials. The carbon material is used in applications such as conductive flooring, foundry coatings and as a recarburizer during the steelmaking process.

It is manufactured by delayed coking of residues from other distillation processes used in the oil refinery. This carbon product is produced in delayed coke units located at a few oil refineries.

The green petroleum coke is sized and fed into a rotary kiln to be calcined at high temperature. The calcination transforms the physical properties of the coke so that it can be used as a recarburizer in the production of steel, cast iron and alloys. The coke is also utilized as a fuel in the coal gasifier plant. The coke has a low sulfur and volatile content and offers high electrical conductivity. It also has good chemical and mechanical properties.

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