Calcined petroleum coke (CPC) is a byproduct generated from the coker unit in crude oil refineries. Its main application lies in the production of anodes for the aluminum, steel, and titanium smelting industries.
The petroleum coke produced through delayed coking of the residues from crude oil distillation processes in refineries is referred to as green or raw petroleum coke. When this raw coke undergoes calcination at temperatures ranging from 1200 to 1300 degrees Celsius, it transforms into calcined petroleum coke.
Additionally, calcined petroleum coke serves as a key feedstock for various products, including aluminum, paints, coatings, and pigments. This black solid material is predominantly composed of carbon, sulfur, and nonvolatile inorganic compounds. It boasts several benefits such as ease of handling, safe transportation, low toxicity, and efficient storage.
Forms of Calcined Petroleum Coke
Petroleum Coke Lumps
These have an irregular block shape. They are primarily utilized in the production of electrodes, metal smelting, and as fuel for power plants. Key characteristics include high density, substantial hardness, and excellent combustion performance.
Petroleum Coke Particles
These take on a slender, needle-like form. Their main applications include the manufacture of anode carbon blocks for the aluminum, steel, and other sectors. They are known for their dense structure, high thermal conductivity, and good electrical conductivity.
Petroleum Coke Powder
This form is a fine powder, primarily used in the production of various chemical products such as carbon black and activated carbon. It is noted for its large specific surface area and high reactivity.
Calcined Petroleum Coke Specifications
| Type | Fix carbon (min. %) | Sulphur (max. %) | Ash(max.%) | Volatile matter (max. %) | Moisture (max.) | Size (mm) |
| CPC-01 | 98.5 | 3 | 0.5 | 1 | 0.5 | 0-2 |
| CPC-02 | 98.5 | 1.5 | 0.5 | 1 | 0.5 | 2-5 |
| CPC-03 | 98.5 | 1 | 0.5 | 1 | 0.5 | 5-10 |
| CPC-04 | 98.5 | 0.6 | 0.5 | 1 | 0.5 | 10-25 |
High carbon content, low ash, sulfur, phosphorus, high mechanical strength.
Properties of Calcined Petroleum Coke
High-temperature stability
Following high-temperature treatment, the thermal resistance of calcined petroleum coke is significantly enhanced. It can maintain its structural integrity at extremely high temperatures without softening or melting, ensuring good stability in high-temperature environments.
High Hardness and Wear Resistance
The hardness and wear resistance of calcined petroleum coke are notably improved. It exhibits high compressive strength and can endure significant pressure and friction, which minimizes wear and the creation of wear debris.
Low volatile matter
The calcination process effectively lowers the volatile matter present in petroleum coke. Volatile matter refers to substances that evaporate during heating. Lowering this content enhances the thermal stability and calorific value of petroleum coke while also reducing emissions and energy loss during combustion.
High true density
The true density of calcined petroleum coke is elevated, meaning that the mass per unit volume increases. A higher true density indicates a greater carbon mass within the petroleum coke, which enhances its electrical and thermal conductivity.
Good electrical conductivity
Calcined petroleum coke possesses strong electrical conductivity, making it suitable for the production of electrodes and conductive materials. It efficiently conducts electric current and is utilized in electric arc furnace smelting, battery manufacturing, and various electrochemical applications.
Higher degree of graphitization
The calcination process increases the degree of graphitization in petroleum coke, enhancing the perfection of its graphite structure. This improvement in graphitization elevates the proportion of graphite within the petroleum coke, thereby boosting its electrical conductivity, mechanical strength, and thermal conductivity.
Choosing SINOMENCO is cost-effective
The Calcined Petroleum Coke provided by SINOMENCO is highly cost-effective due to its low raw material procurement cost, and low labor cost. Partnering with SINOMENCO can enhance your company’s efficiency. As supplier of calcined petroleum coke, we provide competitive pricing. For inquiries regarding the most suitable price per kilogram, please contact us.
