Product & Process

Calcination is a high temperature process for transforming the physical properties of raw petroleum coke. Raw petroleum coke is stored in a closed shed, then transfer to day bins for easy controlling of feed quality and fed into a rotary kiln in controlled ratios. The calcination process raises the material temperatures in the kiln to around 1200 to 1300 deg C depending on the specification of C P Coke required by Customers.

The material flows in a counter direction to the temperature controlled hot gases fired from a kiln burner.

During the heat transfer process, the material comes across various reactive zones where it demoisturization, devolatalization and then to densification zones to improve critical physical properties e.g. electrical conductivity , real density & oxidation characteristics.

The exhaust gases leaving the cooler and kiln are vented into an incinerator. The incinerator exhaust gases are subsequently sent to a Gas cleaning system through boiler. The Gas cleaning system is designed to give the desired outlet emission level after passing through this system and bag house. This calcined coke is used by the Aluminum industry for production of anodes for alumina reduction & is also used in the manufacturing of graphite products, pre-baked graphite electrodes, titanium dioxide industries. It is also widely used in the Steel industry as a Re-carburizer.

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PCIC uses statistical process control to calcine the green cokes to an optimum level to meet a customer's requirements. The calcined coke is first cooled in Cooler by water quenching and conveyed to storage silos through belt conveyor. PCIC have 3 storage silos with capacity of each is 10000 MT.

Calcined Petroleum Coke (CPC)
is a form of highly electrically conductive, densed Carbon with very low specific Electrical Resistance, and having fixed Carbon of approximately 99.5%.

CPC is used extensively as Anode in Alumina Smelters, and in the manufacturing of Graphite/ Graphite Electrodes, and Thermal Paste for Ferro Alloys & allied industries in Arc Furnaces. It is also used in various Steel Industries for - Melting of Steel , Recurburisation and for making Special Steels & Alloys.


A Typical Characteristics of
our CPC is as follows:-

- Max 0.50%,
Volatile Matter - Max 0.50%,
Ash Content - Max 0.50%,
Fixed Carbon - Min 99.00%.
Sulfur - Max 3.30%,
Vanadium - Max 240 ppm
Nickel - Max 180 ppm,
Iron - Max 110 ppm,
Silicon - Max 110 ppm
Real Density - 2.040 ~ 2.090 g/cc,
Vibrated Bulk Density (28/48 mesh) Min 0.870 g/cc