The term "waste petroleum coke for recycling" refers to petroleum coke and its by-products that have lost their original function due to breakage, pulverization, substandard quality, or residual waste during processes such as petroleum refining, carbon product manufacturing, or metallurgy, or those that, although not completely devoid of utility, have been discarded. After collection, classification, impurity removal, and processing, this type of waste petroleum coke can be reused as a carbon resource, serving as a reductant in metallurgy, a supplementary fuel, or as materials for construction, chemical, and other resource recovery applications.