Handan Qifeng Carbon Publishes Guidance on Petroleum Coke Calcination
Handan Qifeng Carbon Co., Ltd. has released a series of technical articles addressing the complexities of the petroleum coke calcination process. These publications offer insights into critical stages and material properties.
Chinese carbon product manufacturer Handan Qifeng Carbon Co., Ltd. has shared technical insights into the petroleum coke calcination process. The company has issued several articles detailing key aspects and challenges within this industrial procedure.
One publication focuses on the phenomenon of "thermal shock" during calcination. It explains how rapid temperature increases or decreases create temperature gradients within the material. Due to constrained expansion or contraction of different parts, thermal stress can arise, potentially impacting the final product quality.
Another article compares the outcomes of rapid versus slow heating methods on the resulting calcined coke. Despite reaching the same target calcination endpoint temperature of 1250–1350°C, the heating rate significantly influences yield, density, electrical resistivity, and microstructure of the coke.
Handan Qifeng Carbon also highlights the importance of pre-treatment. Homogenizing petroleum coke from different batches and quality levels is essential to ensure consistent chemical composition, particle size, and physical properties. This uniformity contributes to process stability. Special attention is given to petroleum coke with high nickel and vanadium content, as these elements do not volatilize during calcination but significantly alter the final product's characteristics.