关键词: 负极材料, 石油焦, 碳质中间相, 焦化

Abstract: With the high-speed growth of anode material industry, its demand for petroleum coke raw materials was getting bigger and bigger, and it was an effective way to improve quality and increase efficiency if traditional refineries can make use of the existing delayed coking unit to produce coke raw materials that meet the requirements of anode materials. Power batteries require anode materials to achieve high gram capacity, high multiplicity and other properties, and accordingly require anode material coke raw materials to have a high proportion of fiber structure and regional structure, which was closely related to the formation and growth of carbonaceous mesophase in the coking process. To produce power-class anode coke in ordinary delayed coking units, it was necessary to finding ways to improve both raw materials and process conditions, such as doping catalytic slurry, adopting low reaction temperature, high coking pressure, large cycle ratio, and long coke-growing time operation, and to meet the challenges of upstream and downstream convergence, comprehensive evaluation of processing efficiency, plant-wide material balance, and maintenance of stable petroleum coke quality.

Key words: anode material, petroleum coke, carbonaceous mesophase, coking