The manufacturing method of liquid paraffin
1. Introduction
1. Liquid paraffin is an important raw material widely used in chemical production, with excellent lubrication, oxidation resistance, and thermal stability. Improving the production efficiency and quality of liquid paraffin has become an urgent issue to meet the growing market demand. This article will provide a detailed introduction to the manufacturing methods of liquid paraffin, aiming to provide readers with useful references and insights
2、 Manufacturing method
1 The main raw material for manufacturing liquid paraffin is petroleum wax, which includes straight chain alkanes and a small amount of branched chain alkanes. During the preparation process, a certain amount of catalyst and additives need to be added
2. Catalytic cracking: After heating petroleum wax to a certain temperature, a catalyst is added for cracking reaction. The function of catalysts is to reduce the activation energy of cracking reactions, promote the breaking of carbon carbon bonds in paraffin molecules, and generate smaller hydrocarbon compounds
3. Fractionation
After the cracking reaction is completed, the reaction products are fractionated to separate hydrocarbon compounds with different boiling points. By controlling the distillation temperature and pressure, liquid paraffin with a specific boiling point range can be obtained
4. Refining
In order to further improve the quality of liquid paraffin, it is necessary to refine the products obtained from distillation. During the refining process, impurities generated during the cracking reaction, such as sulfur, nitrogen, and other compounds, as well as darker colored gum substances, can be removed
5. Blending
According to actual needs, liquid paraffin with different boiling point ranges can be blended to obtain liquid paraffin products with specific properties. During the blending process, it is necessary to consider performance indicators such as viscosity, pour point, and flash point of the product
3、 Notes
1 In the catalytic cracking process, it is necessary to strictly control the reaction temperature and the amount of catalyst used to avoid excessive cracking or insufficient cracking
During the distillation process, it is necessary to adjust the distillation temperature and pressure according to the requirements of the product to ensure that qualified liquid paraffin is obtained
During the refining process, it is necessary to select appropriate refining agents and operating conditions to ensure that the product quality meets the requirements
During the blending process, it is necessary to select the appropriate blending ratio and blending process based on the performance indicators of the product
4、 Conclusion: As an important raw material for chemical production, the manufacturing method of liquid paraffin involves multiple stages and precautions. High quality liquid paraffin products can be produced through reasonable process steps such as raw material preparation, catalytic cracking, fractionation, refining, and blending. In the actual production process, it is necessary to flexibly adjust process parameters and operating conditions according to different raw materials and product requirements to ensure product quality and output. At the same time, strengthening safety management and environmental protection measures during the production process is also an important aspect of ensuring the smooth progress of the liquid paraffin manufacturing process.
