Product Introduction & Main Application
Arnico’s Petroleum Coke (Pet Coke) is a hard, solid carbon material produced from the thermal cracking of heavy residual oil (Vacuum Bottom) in a Delayed Coker Unit. It is a black, porous solid with a high carbon-to-hydrogen ratio. It is classified primarily into Fuel Grade, which is used as a high-calorific-value fuel in cement kilns and power plants, and Anode Grade, which undergoes calcination to produce high-purity carbon anodes essential for the aluminum electrolysis process.
2. Technical Specifications
| Technical Parameter | Fuel Grade (High Sulfur) | Anode Grade (Green, Low Sulfur) | Unit |
|---|---|---|---|
| Fixed Carbon | 85 – 90 | ≥ 92 | wt% |
| Sulfur Content | 3.0 – 7.0 | ≤ 2.5 | wt% |
| Volatile Matter | 8 – 12 | 6 – 10 | wt% |
| Ash Content | ≤ 0.5 | ≤ 0.3 | wt% |
| Moisture | 6 – 10 | ≤ 8 | wt% |
| Hardgrove Grindability Index (HGI) | 40 – 60 | 60 – 90 | – |
3. Features & Benefits
High Calorific Value: Fuel Grade Pet Coke delivers 7,800-8,200 kcal/kg, providing more energy per ton than most steam coals, reducing overall logistics costs.
Low Ash Content: The minimal ash residue (<0.5%) compared to coal simplifies ash handling and disposal and reduces refractory erosion in kilns.
Ideal Smelting Anode Feed: The low-sulfur, low-metals grade is specifically destined for calcination and subsequent anode production, where it provides high electrical conductivity.
Sulfur Value Recovery: The high sulfur in fuel grade is beneficial in cement manufacturing, where it is absorbed by limestone, reducing the need for added gypsum.
Versatile Physical Forms: Can be supplied as shot, sponge, or needle coke depending on the source and intended downstream process.
4. Industrial Applications
Cement Industry: The primary fuel for pre-calciner and rotary kilns due to its high energy, low ash, and mineral-trapping properties.
Aluminum Smelting: The essential raw material for manufacturing pre-baked carbon anodes after calcination.
Titanium Dioxide Production: A feedstock in the chloride process for TiO₂ pigment manufacturing.
Steel Making: A recarburizer additive to adjust carbon levels in molten steel and as an injection fuel for Electric Arc Furnaces (EAF).
5. Safety & Handling
MSDS: This product is a combustible, dusty solid with a risk of self-heating in bulk storage. Full MSDS is provided by Arnico.
Storage Conditions: Store in open or covered bunkers. Monitor internal pile temperatures. Use low-speed conveyors and controlled drop heights to minimize dust generation.
Personal Protective Equipment (PPE): Petroleum coke dust is classified as a nuisance dust. Use of a NIOSH-approved N95 dust mask, safety glasses, and full-body clothing is mandatory.
6. Quality Assurance & COA
Every shipment of Pet Coke from Arnico is accompanied by a detailed Certificate of Analysis (COA) from an independent surveyor, specifying fixed carbon, sulfur, and trace metals (V, Ni, Fe), ensuring the product meets the precise anode or fuel specification.
