Difference between calcined pet-coke and petroleum coke

Difference between calcined pet-coke and petroleum coke

Difference between calcined pet-coke and petroleum coke

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Difference between calcined pet-coke and petroleum cokeDifference 1: appearanceCalcined pet-coke: from the appearance, calcined pet-coke is black block with ir

Difference between calcined pet-coke and petroleum coke

Difference 1: appearance

Calcined pet-coke: from the appearance, calcined pet-coke is black block with irregular shape and different size, with strong metallic luster. After calcined, the pores of carbon  particles are more transparent.

Petroleum coke: compared with calcined coke, there is little difference in shape between them, but compared with calcined coke, the metallic luster of petroleum coke is weaker, the particle surface is not dried after calcined coke, and the pores are not permeated after calcined coke.

Difference 2: production process and index

Petroleum coke: petroleum coke is crude oil distillation will be light oil separation, heavy oil and then through the process of hot cracking, transformed into products, the main element composition of carbon, the rest for hydrogen, nitrogen, sulfur and metal elements and some mineral impurities (water, ash, etc.)

The calcined coke:  Calcined coke is made by calcination of petroleum coke. Calcination of Raw materials is an important process in carbon production process. During the calcination process, the structure and element composition of carbon Raw materials will undergo a series of changes.  The volume shrinkage, density and mechanical strength of carbonwill also become stronger, thus reducing the secondary shrinkage caused by the calcination of products. The more fully the Raw material is calcined, the more favorable the product quality will be.

Difference 3: use

Calcined coke: calcined coke is mainly used for pre-baked anode and cathode of electrolytic aluminum, carburizer, GRAPHITE ELECTRODE, industrial silicon and carbon electrode of  ferroalloy in metallurgical and iron industry.

Needle coke in petroleum coke is mainly used in high power graphite electrode, sponge coke is mainly used in steel industry and carbon industry.

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