The main differences between the delayed coking process and other processes for producing petroleum coke and needle coke
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The use of delayed coking units to process heavy oils in order to produce petroleum coke and other oil products is a mature technology. In recent years, there has been an increase in demand for needle coke, and various companies are employing the delayed coking process to manufacture it. What are the main differences between the production of petroleum coke and that of needle coke?
Raw material equivalent to needle coke produced by delayed coking
Petcoke and needle coke produced by the delayed coking process differ in some specific aspects: 1. Raw material selection: Petcoke produced via delayed coking is mainly made from heavy oils, whereas needle coke is typically produced using light oils or residue as raw materials. 2. Temperature control: In the delayed coking process for producing petroleum coke, the temperature is maintained at a relatively high level, resulting in coke in a more lump-shaped form ； When producing needle coke, it is necessary to keep the temperature at a low level in order to produce long, thin needle-shaped coke. 3. Coke morphology: Petroleum coke is generally in lumpy form, with varying sizes ； Pin coke, on the other hand, has an elongated shape with uniform length and a small diameter. 4. Different applications: Petroleum coke is mainly used in industries such as metallurgy and foundry manufacturing, whereas needle coke is primarily used in high-end fields such as battery materials and refractory materials. Generally speaking, the main differences between the delayed coking process and other processes for producing petroleum coke and needle coke lie in raw material selection, temperature control, morphological characteristics, and applications. .