When calcined petroleum coke is used as a recarburizer in steelmaking, the quality is determined by several key factors, which are essential in assessing its suitability for various applications.
For more calcined petroleum coke particles supplierinformation, please contact us. We will provide professional answers.
(1) Fixed Carbon Content
Fixed carbon content represents the carbon content remaining in the coke after calcination process. Steelmaking requires a specific carbon level to achieve desired carbon content in the final steel product. Fixed carbon content directly influences the amount of carbon added to the molten steel during recarburizasion process, making it a crucial factor in judging the effectiveness as recarburizer.
(2) Sulfur Content
Sulfur content is a significant consideration as high sulfur content can lead to sulfur absorption and sulfides formation in the steel, which can furtherly cause brittleness and negatively impact the mechanical properties and weldability of final steel. Thus, low sulfur content is desirable in CPC to minimize such potential negative effects.
(3) Ash Content
Ash content represents the inorganic residue left after the combustion in CPC. High ash content leads to increased slag formation during steelmaking, which can affect the steel's cleanliness and processing characteristics as well as increase processing costs. Low ash content is necessary to maintain high level steel properties.
(4) Volatile Matter
Volatile matter refers to the substances evaporating when CPC is heated. It influences the carbon addition to the steel melt by contributing to the burn-off of carbon during steelmaking process. Volatile matter content should be limited to desired range to ensure accurate carbon addition added and achieve the target carbon content in the steel.
(5) Moisture Content
Moisture in the coke can lead to additional carbon loss resulted from evaporating at high temperatures, which weakens the effectiveness of recarburization and leads to inaccurate carbon control in the steel. Moreover, high moisture content causes increased foaming and gas evolution during steelmaking process. It can also contribute to increased slag formation and reduced permeability in the steel melt.
(6) Particle Size Distribution
The particle size distribution can impact the performance of CPC used as a recarburizer in steelmaking. The CPC particles should have a reasonable size range that allows for efficient mixing and distribution within the steel melt. The desired particle size distribution also depends on the specific process and equipment used. Appropriate particle size distribution helps achieve uniform carbon addition and facilitates a homogeneous melt.
(7) Hardness and Abrasion Resistance
If you are looking for more details, kindly visit Spodumene Flotation Reagents/Chemicals Supplier.
The hardness and abrasion resistance of CPC are important factors in impacting their performance as recarburizer. Particles with higher hardness and abrasion resistance are generally preferred to withstand harsh conditions in steelmaking process, including high temperatures and vigorous stirring. It ensures better stability and reduces the generation of fines during handling and injection, resulting in more efficient and effective carbon addition.
(8) Metal Contamination
Excessive metal impurities such as vanadium, nickel, etc. can have adverse effects on steel quality, as they may act as catalysts for undesirable reactions or introduce unwanted elements into the steel. So CPC used as a recarburizer should have low metal contamination to ensure desired purity and quality of the finished steel.
(9) Consistency and Homogeneity
Consistency and homogeneity of the CPC properties are crucial for predictable and reliable performance as a recarburizer. Steel producers require consistent quality recarburizer to achieve consistent steel properties and meet industry standards. As a plant direct supplier of CPC, Hebei Yunai Carbon Ltd. strives to maintain tight quality control throughout production to meet the specific requirements of CPC for steelmaking applications.
(10) Other Factors
Other factors that impact the quality of CPC include elemental composition (such as nitrogen, hydrogen, and phosphorus...), density, resistivity, and mechanical strength. These factors can influence the coke's stability, reactivity, and some other properties.
Meanwhile, it's important to note that the specific quality parameters for CPC may vary depending on industry standards, specific finished product requirements, and regional regulations. Therefore, consulting relevant end use specifications clearly and working closely with a reliable supplier is crucial to ensure the selection of CPC with the appropriate quality parameters for particular applications.
Leon Su
+8615130123254 (WA / WeChat)
Calcined Petroleum Coke is a critical ingredient in the production of aluminum. It is created by placing high quality raw "green" petroleum coke into rotary kilns, where it is heated to temperatures between 1200 to 1350 degrees C (2192 to 2460 F). The high temperatures remove excess moisture, extract all remaining hydrocarbons and modify the crystalline structure of the coke, resulting in a denser more electrically conductive product. In a matter of hours, calcined petroleum coke is cooled from 1350 degrees C to less than 200 degrees C, when it can be safely handled and transported to storage silos or placed directly into shipping containers, trucks, railcars, barges or vessels.
Calcined petroleum coke has a sponge-like structure which plays an important role in the making of anodes. The pores allow binding material to penetrate through the coke particles and form a solid carbon block, through which aluminum smelters conduct electricity into their smelting pots. Over time, the anodes are consumed, roughly at the rate of 40 tons of calcined petroleum coke for each 100 tons of aluminum produced. Currently, there is no known commercially viable substitute for calcined petroleum coke in the fabrication and utilization of aluminum smelter anodes.
Contact us to discuss your requirements of Calcium Bentonite price. Our experienced sales team can help you identify the options that best suit your needs.