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This company is active in the supply, import and export of various types of petroleum coke.

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Petroleum coke, full introduction to petroleum coke

petroleum coke Or what is purified CPC?

Petroleum coke or calcined petroleum coke is a product produced in the process of converting crude oil into various fuels, especially petroleum fuels such as gasoline and diesel. This substance is in solid form and is among the secondary compounds produced in oil distillation and cracking units.

Calcined petroleum coke is the main type of coke and has a graphite structure. It can be found in two different forms: The small pieces that result from the cracking of diesel as well as the larger lumps that come from the distillation of crude oil.

The main use of calcined coke is in industries that require high heat, such as aluminum production, steelmaking, and energy production. Also, petroleum coke is also used in the production processes of graphite electrodes.

Features and properties of petroleum coke

Petroleum coke (calcified petroleum coke) has several characteristics and properties, some of which we will examine below:

1. Graphite structure: petroleum coke has a graphite structure, which means having graphite layers made up of carbon atoms. This structure can give petroleum coke high strength and significant mechanical strength.

2. High carbon content: coke usually has a high carbon content that can make up to 90% or more of its weight. This feature makes petroleum coke a rich source of carbon.

3. Heat resistance: cokeDue to its graphite structure and high carbon content, it has very high heat resistance. This property makes it suitable for use in industrial processes that require high heat, such as aluminum and steelmaking processes.

4. Reducing the amount of polluting gases: Petroleum is used as fuel in combustion processes. With the combustion of coke, the amount of polluting gases such as greenhouse gases, carbon dioxide gases and other pollutants is significantly reduced.

5. Chemical stability: petroleum coke has high chemical stability. This means its resistance to chemical changes and decomposition. This feature allows coke to be used in long-term industrial processes and to act as a stable material in harsh conditions and environments with high temperature and pressure.

6. Consumption in the steel industry: petroleum is used as one of the main materials in steel production. Due to its high carbon content and thermal properties, this material is used in steel production processes such as electric arc and arc furnaces.

7. Use in the production of graphite electrodes: coke is used as one of the main materials in the production of graphite electrodes. These electrodes are used in industries such as steel making, aluminum making, and chemical industries, and they have requirements such as heat resistance, good electrical conductivity, and chemical stability, which petroleum coke meets these requirements well.

In general, because of its characteristics and properties, coke has wide applications in various industries including steel industry, aluminum industry, graphite electrode industry and energy production.

Application and uses of petroleum coke

Petroleum coke (calcified petroleum coke) is used as a material in various industries. Some of its main uses and places of consumption are:

1. Steel industry: Coke is used as one of the main materials in steel production. It is used as a fuel or a carbon material in arc furnaces and electric arc steelmaking.

2. Aluminum industry: Coke is also used in aluminum production. In the aluminum manufacturing process, petroleum coke is used as a carbon source to reduce aluminum oxide.

3. Production of graphite electrodes: Petroleum coke is used in the production of graphite electrodes. These electrodes are used in industries such as steelmaking, aluminum making, and chemical industries, and they have requirements such as heat resistance, good electrical conductivity, and chemical stability, which petroleum coke meets these requirements well.

4. Energy production: petroleum coke is also used in energy production. In some power plants and steam and gas production units, petroleum coke is used as an alternative fuel.

5. Chemical industry: In some chemical industries, calcined coke is used as a carbon source, such as synthetic graphite production, catalytic processes, synthetic gas production, and organic chemical production. Also, calcined coke is used in the production of carbon filters, battery electrodes and the production of modified crude oil materials.

The method of calcining raw coke and turning it into petroleum coke

Calcining raw coke and turning it into petroleum coke is done in a calcination unit. The refining process of raw coke generally includes the following steps:

1. Pre-processing: In this step, raw coke enters the system and is first converted into smaller particles using grinding and crushing. Then it is transferred to the Taklis department as an input.

2. Capture and power plant: In this step, the raw coke is transformed in a cool capture using a separating agent such as water, air or methylene ester gas. These separators remove oil and light organic matter from raw coke.

3. Thermal calcination: In this step, raw coke is placed in a calcination furnace in the form of pellets. The calcination furnace is generally an electric arc furnace or a rotary furnace. At high temperature and in a low oxygen environment, raw coke is affected by heat and oxidation and degassing occur.

4. Collecting the product: After complete calcination, the final product, i.e. petroleum coke, is collected. This product is solid and in large masses and is separated from gases, light oils and other materials using separation systems.

The values ​​of temperature, time, ratio of air and gases, and other conditions of calcination process, are used to the chemical composition and desired properties to produce petroleum coke.

Analysis of petroleum coke

عنصرCPC TYPE 1CPC TYPE 2CPC TYPE 3CPC TYPE 4RPC TYPE 1RPC TYPE 2RPC TYPE 3
کربن (C)98.5%Min97%Min95%Min90%Min88.6%Min88%Min90-92%Min
خاکستر (ASH)0.5%Max1%Max3%Max6-7%Max0.47%Max0.30-0.60%Max2%Max
سولفور (S)0.5%Max0.6%Max0.8%Max1%Max0.6%Max3-3.5%Max0.26%Max
مواد فرار (V)0.5%Max2%Max3%Max3%Max10.6%Max8.6-10%Max6%Max
رطوبت (M)0.5%Max1%Max1%Max1%Max0.8%Max6.9%Max1.5%Max
سایز (SIZE)1-5mm1-5/1-3/0-1mm1-5/1-3/0-1mm1-5/1-3/0-1mm0-50mm0-30mm0-50mm