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Jiangsu jinzhaochuan carbon products co. LTD

Guanji mineral products of Lianyungang

Contact: General Wu

Contact number:

Fifteen billion fifty million nine hundred and sixteen thousand seven hundred and eighty-nine

Consultation hotline:



Address: No..11, Quyang East Industrial Park, Donghai County, Lianyungang City, Jiangsu Province

Quality standard of graphitized petroleum coke


Graphitized petroleum coke factory

I. Properties of petroleum coke. 

Petroleum coke is a hard solid petroleum product of black or dark gray, with metallic luster and porosity, which is composed of fine graphite crystals to form granular, columnar or acicular charcoal. 

Petroleum coke is composed of hydrocarbons, containing 90-97% carbon and 1.5-8% hydrogen, as well as nitrogen, chlorine, sulfur and heavy metal compounds. 

Petroleum coke is a by-product of the cracking of feedstock oil of delayed coking unit to produce light oil at high temperature. 

The output of petroleum coke is about 25-30% of the raw oil. 

Its low calorific value is about 1.52 times that of coal, the ash content is less than 0.5%, the volatile content is about 11%, and the quality is close to that of anthracite. 

II. Quality standards for petroleum coke. 

Delayed petroleum coke refers to the coke produced by delayed coking unit, also known as ordinary coke, there is no corresponding national standard. 

At present, the domestic production enterprises are mainly based on the industry standard SH0527-92 formulated by the former Sinopec (see Table 1 for details). 

The standard is mainly classified according to the sulfur content of petroleum coke, in which the first grade and No. 1 coke are suitable for making common power graphite electrode in steelmaking industry and carbon for aluminum industry. 

No. 2 coke is used as electrode paste and production electrode for electrolytic cell (furnace) in aluminum smelting industry, and No. 3 coke is used to produce silicon carbide (grinding material) and calcium carbide (calcium carbide), as well as other carbon products. 

It is also used for the manufacture of anode bottom block of aluminum reduction cell and for the construction of carbon lining brick or furnace bottom of blast furnace. 

In 2010, after the integration of Sinopec petroleum coke sales business, the petroleum coke enterprise standard "petroleum coke" Q/SH PRD392-2010, of Sinopec was established to subdivide the grade of petroleum coke with sulfur content more than 3%. 

Graphitized petroleum coke manufacturer-Lianyungang Guanji Mineral products Co., Ltd. welcome your call.


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