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[Chemical Knowledge]：Manufacturing method and process of imported fuel oil

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Manufacturing method
of imported fuel oil As an important raw material for chemical production,
fuel oil is widely used in electric power, transportation, metallurgy and other fields. With the acceleration of globalization, the market demand for imported fuel oil is increasing. This article will introduce the manufacturing method of imported fuel oil, including mixing, blending, desulfurization, denitrification and other process steps.

1. raw material preparation

manufacturing imported fuel oil first need to prepare suitable raw materials, usually including paraffin-based crude oil, naphthenic crude oil and so on. These crude oils have different properties and characteristics, and need to be reasonably proportioned according to product requirements.

2. mixing process

mixing process is to mix crude oil with different properties in a certain proportion to obtain imported fuel oil with specific properties. During the mixing process, attention should be paid to controlling factors such as mixing ratio, temperature and stirring speed to ensure uniform mixing and product quality.

3. blending process

blending process is to improve the performance of imported fuel oil by adding various additives, such as antioxidants, metal passivators, anti-foaming agents, etc. In the process of blending, it is necessary to select the appropriate type and amount of additives according to the product quality requirements to ensure stable product performance.

4. desulfurization process

Because crude oil usually contains a certain amount of sulfur, and sulfur has an adverse effect on the combustion performance and environmental protection of fuel oil, it needs to be desulfurized. The desulfurization process usually adopts the hydrodesulfurization method, that is, under the condition of high temperature and high pressure, hydrogen is introduced to make the sulfur and hydrogen react to generate hydrogen sulfide, and then the hydrogen sulfide is converted into sulfur or sulfur compounds through the action of the catalyst to achieve the purpose of desulfurization.

5. denitrification process

crude oil also contains a certain amount of nitrogen compounds, which have adverse effects on the combustion performance and stability of fuel oil, so it is necessary to carry out denitrification treatment. The denitrogenation process usually adopts the hydrodenitrogenation method, that is, under the condition of high temperature and high pressure, hydrogen is introduced to make the nitrogen and hydrogen react to generate ammonia, and then the ammonia is converted into nitrogen by the action of the catalyst, so as to achieve the purpose of denitrogenation.

6. water removal process

crude oil usually contains a certain amount of moisture, and moisture has an adverse effect on the storage and use of fuel oil, so water removal treatment is required. The water removal process usually uses heating sedimentation or vacuum distillation to separate the water from the fuel oil.

7. Product Quality Control and Testing

In the process of manufacturing imported fuel oil, it is necessary to strictly control the parameters of each process step and product quality to ensure that the product meets relevant standards and regulations. At the same time, the product needs to be tested regularly, including density, viscosity, flash point, sulfur, nitrogen and other indicators to ensure stable and reliable product quality.

In short, the manufacturing method of imported fuel oil needs to go through multiple process steps to ensure product quality and performance. In the actual production process, it is necessary to select appropriate process methods and parameter control according to specific product requirements and raw material properties to ensure product quality and output.

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