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[Chemical Knowledge]：Manufacturing method and process of needle coke

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Manufacturing Methods
of Needle Coke
Needle coke is a kind of high-value chemical raw material, which has unique physical and chemical properties, such as high purity, high density, high thermal stability and so on. Therefore, the manufacturing method of needle coke has an important position in the field of chemical industry. This paper will introduce the manufacturing method of needle coke in detail, including raw material selection, preparation process, production equipment and so on.

1. raw material selection

The manufacture of needle coke requires high quality raw materials, and petroleum coke or coal coke is usually used as raw materials. When selecting raw materials, it is necessary to consider their purity, ash, volatile, sulfur and other indicators to ensure the quality and yield of the final product. In addition, it is necessary to select raw materials with appropriate particle size and moisture content according to the requirements of production equipment.

2. preparation process
The preparation process of
needle coke mainly includes the following steps:

1. Raw material pretreatment: the raw material is crushed, screened, dried and other treatments to meet the requirements of the production process.

2. Coking reaction: under the condition of high temperature and lack of oxygen, the raw materials undergo pyrolysis and condensation reaction to generate needle coke and volatile. The parameters of coking reaction, such as temperature, time and pressure, have an important influence on the quality and yield of needle coke.

3. Cooling and dust removal: The high-temperature gas after the coking reaction is cooled and dust-removed to obtain a pure needle coke product.

4. Product Packaging and Storage: The needle coke product is packaged and stored for transportation and use.

3. production equipment

needle coke production equipment mainly includes coking furnace, cooler, dust collector and so on. When selecting production equipment, it is necessary to consider its performance, reliability, automation and other factors to ensure production efficiency and product quality.

4. precautions

1. safety production: needle coke production process involves high temperature, high pressure and other risk factors, need to strictly abide by the safety production norms, to ensure the safety of employees and equipment.

2. Environmental protection: The production process of needle coke will produce certain waste gas, waste water and solid waste, which need to be effectively treated and disposed to protect the environment and ecological balance.

3. Quality control: The quality of needle coke has an important impact on its application value. It is necessary to strictly control various quality indicators in the production process to ensure the stability and reliability of product quality.

In short, the manufacturing method of needle coke involves multiple links and factors, and it is necessary to comprehensively consider the requirements of raw material selection, preparation process, production equipment, safe production, environmental protection and quality control to ensure product quality and output. Improve the economic and social benefits of enterprises.

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