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[Chemical Knowledge]：Manufacturing method and process flow of non-aromatic hydrocarbons

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Manufacturing methods
of non-aromatic hydrocarbons
in the field of chemical production raw materials, non-aromatic hydrocarbons are an important class of organic compounds, widely used in fuels, solvents, plastics, rubber, fibers and other fields. This article will introduce several common non-aromatic manufacturing methods.

1. Cracking
of Alkanes
Alkane cracking is a commonly used method for manufacturing non-aromatic hydrocarbons. Under the conditions of high temperature and low pressure, the alkane molecules are broken to form small non-aromatic hydrocarbons. This method is mainly used to manufacture light non-aromatic hydrocarbons, such as ethylene, propylene, etc. The reaction conditions for the cracking of

alkanes are relatively harsh, requiring high temperature and low pressure environments. At the same time, some by-products, such as hydrogen, carbon black, etc., will be produced in the cracking process, and the reaction products need to be separated and purified.

2. Petroleum distillation

Petroleum distillation is a method of separating petroleum into components with different boiling points by heating and condensing. Through petroleum distillation, a series of non-aromatic hydrocarbons can be obtained, including alkanes, cycloalkanes, etc. In the process of

petroleum distillation, it is necessary to control the heating rate and distillation temperature to ensure that the components with different boiling points can be fully separated. At the same time, the distillation process also needs to refine and purify the product.

3. Coal liquefaction

Coal liquefaction is a method of converting coal into liquid fuel and non-aromatic hydrocarbons. Under conditions of high temperature and pressure, coal reacts with hydrogen to form liquid hydrocarbons. Through coal liquefaction, a series of non-aromatic products can be obtained. In the process of

coal liquefaction, a large amount of hydrogen and energy are consumed, and some wastes and by-products are also produced. Therefore, when coal liquefaction is carried out, it is necessary to consider the economic benefits and environmental impact.

4. Biomass Fermentation

Biomass fermentation is a process that uses microorganisms to convert biomass into organic compounds. Through biomass fermentation, some non-aromatic products can be obtained, such as ethanol, acetone and so on. In the process of

biomass fermentation, it is necessary to select suitable microorganisms and fermentation conditions to ensure the quality and yield of the product. At the same time, the fermentation process also needs to separate and purify the product.

In short, there are various manufacturing methods for non-aromatics, and different manufacturing methods can be selected according to different raw materials and process conditions. In the production process, it is necessary to pay attention to the control of reaction conditions, the separation and purification of products, etc., to ensure the quality and yield of products.

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