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Classification and application of the Best petroleum coke in china

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  • Time of issue:2022-07-19
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(Summary description)The Best petroleum coke in china is a product of crude oil after distillation and separation of light and heavy oil, and then converted into heavy oil by thermal cracking. The Best petroleum coke in china can be used in graphite making, smelting, chemical industry and other industries according to its quality. From the aspect of appearance, coke is black block or granule with irregular shape and different sizes, with metallic luster. The particles of coke have porous structure, and the main element composition is carbon.

Classification and application of the Best petroleum coke in china

(Summary description)The Best petroleum coke in china is a product of crude oil after distillation and separation of light and heavy oil, and then converted into heavy oil by thermal cracking. The Best petroleum coke in china can be used in graphite making, smelting, chemical industry and other industries according to its quality. From the aspect of appearance, coke is black block or granule with irregular shape and different sizes, with metallic luster. The particles of coke have porous structure, and the main element composition is carbon.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2022-07-19
  • Views:0
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The Best petroleum coke in china is a product of crude oil after distillation and separation of light and heavy oil, and then converted into heavy oil by thermal cracking. The Best petroleum coke in china can be used in graphite making, smelting, chemical industry and other industries according to its quality. From the aspect of appearance, coke is black block or granule with irregular shape and different sizes, with metallic luster. The particles of coke have porous structure, and the main element composition is carbon.

The Best petroleum coke in china has a wide range of functions. Low sulfur and high-quality cooked coke, such as needle coke, can be mainly used to manufacture ultra-high power graphite electrodes and some special carbon products. In the steel-making industry, needle coke is also an important material for the development of new electric furnace steelmaking technology. Generally speaking, medium sulfur and ordinary cooked coke are widely used in aluminum smelting, while high sulfur and ordinary raw coke are used in chemical production, such as calcium carbide, silicon carbide, etc. of course, they are also used as fuel for metal casting. Most of the Best petroleum coke produced in China belongs to low sulfur coke, which is mainly used to make aluminum and graphite, while others are mainly used to make carbon products, such as graphite electrode and anode arc, which are used to make steel, nonferrous metals and aluminum, or to make silicon carbide products, such as various grinding wheels, sandskins, sandpaper, etc.

Classification of the Best petroleum coke in china

1. The Best petroleum coke in china is classified according to sulfur content

It can be divided into high sulfur coke (sulfur content more than 4 mass%), sulfur coke (sulfur content of 2% to 4%) and low sulfur coke (sulfur content less than 2%).

2. The Best petroleum coke in china is classified by processing method

It can be divided into raw and cooked coke. Raw coke is obtained from the coke drum of the delayed coking and coking production unit, also known as raw coke, which contains more volatile and has poor strength; Cooked coke is obtained by calcining raw coke (1300 ℃), also known as calcined coke.

3. The Best petroleum coke in china is classified according to different forms

It can be divided into needle coke, pellet coke or spherical coke, sponge coke and powder coke.

(1) Needle coke: it has obvious needle like structure and fiber texture, and is used in steel making and the production of ultra-high power graphite electrodes.

(2) Sponge coke: high sulfur content, high moisture content, rough surface, but relatively high price.

(3) Pellet coke or spherical coke: the shape is spherical; 0.6~30 mm in diameter; The surface is smooth and the water content is low. It is usually produced by high sulfur and high asphaltene residue, but it is only used for power generation, cement and other industrial fuels.

(4) Powdered coke: its particles have high volatile matter (diameter 0.1~0.4mm) and high thermal expansion risk coefficient, which can not be directly used in the preparation of electrode materials and carbon industry.

4. The Best petroleum coke in china is classified according to different microstructure and morphology

It can be divided into sponge coke and needle coke. The former is porous and spongy, also known as ordinary coke; The latter is dense and fibrous, also known as high-quality coke. In nature, acicular coke and sponge coke have significant differences, with high density, high purity, high strength, low sulfur, low ablation, low coefficient of thermal expansion and good heat shock resistance; Heat conducting, conductive, with significant optical anisotropy and magnetism; The holes are large and few, similar to ellipses, with a clear broken surface texture and a lubricating touch.

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