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[Chemical Knowledge]：Production method and process of butene-1

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Butene-1 manufacturing method

1. Introduction

Butene-1 is an important chemical production raw material, widely used in plastics, synthetic rubber, synthetic fibers and other fields. With the continuous development of the chemical industry, the demand for butene-1 is also increasing year by year. Therefore, it is of great significance to study the manufacturing method of butene-1 for improving production efficiency, reducing costs and promoting the development of the chemical industry.

2. butene-1 properties and uses

butene-1 is a colorless, flammable, slightly odorous gas, molecular formula C4H8. It is insoluble in water, soluble in organic solvents. Butene-1 is mainly used as a chemical raw material for the production of butadiene, butanol, butyraldehyde, butyric acid and other chemicals, can also be used in the manufacture of synthetic rubber, synthetic fibers, plastics and so on.

3. butene-1 manufacturing method

1. Petrochemical cracking
Petrochemical cracking is the main method of industrial production of butene-1. The method uses naphtha, light diesel oil, etc. as raw materials, and generates a low-carbon olefin mixture including butene-1 through a high-temperature cracking reaction. Then, through separation, purification, and the like, high-purity butene-1 is obtained.

2. Ethanol dehydrogenation
Ethanol dehydrogenation is a method for preparing butene-1 through ethanol dehydrogenation reaction. The method uses ethanol as a raw material, and under the action of a catalyst, ethanol is converted into butene-1 by heating and dehydrogenation reaction. The advantages of this method are that the raw materials are easily available, the reaction conditions are mild, but the yield is low.

3. Butane dehydrogenation
Butane dehydrogenation is a process for the production of butene-1 through the dehydrogenation of butane. The method uses butane as a raw material, and under the action of a catalyst, butane is converted into butene-1 by heating and dehydrogenation reaction. The advantage of this method is that the raw materials are cheap and easy to obtain, but the reaction conditions are relatively harsh, requiring high temperature and high pressure.

4. Butene-1 Manufacturing Process

1. Petrochemical Cracking Process Butene-1 Manufacturing Process:
Raw Material Pretreatment → Cracking Reaction → Cooling Separation → Compression → Refining → Product Storage

2. Ethanol Dehydrogenation Process Butene-1 Manufacturing Process:
Ethanol raw material pretreatment → dehydrogenation reaction → cooling separation → refining → product storage

3. The technological process of butane dehydrogenation manufacturing butene-1:
butane raw material pretreatment → dehydrogenation reaction → cooling separation → refining → product storage

5. safety production and environmental protection requirements

in the production process, to strictly abide by the safety production specifications and environmental protection requirements to ensure the safety and environmental protection of the production process. At the same time, it is necessary to strengthen the treatment and utilization of production waste gas to reduce environmental pollution.

6. conclusion

butene-1 as an important raw material for chemical production, and its manufacturing methods mainly include petrochemical cracking, ethanol dehydrogenation and butane dehydrogenation. Different manufacturing methods have different advantages and disadvantages and scope of application. Choosing the appropriate manufacturing method according to the actual situation is of great significance for improving production efficiency, reducing costs, and promoting the development of the chemical industry. At the same time, in the production process, we must strictly abide by the safety production standards and environmental protection requirements to ensure the safety and environmental protection of the production process.

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