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August 02, 2023
(3) Mixed processing route
When the hydrotreating process is combined with solvent refining and solvent dewaxing, a base oil production route combining physical and chemical processing is formed, which is a mixed process structure.
(4) Production process of hydrodewaxing
With the continuous understanding of hydrotreated base oils and the increasing requirements of the automotive industry for lubricating oil quality, the technology of lubricating oil hydrotreating has achieved sustained development.
Especially with the strong promotion of environmental protection, energy conservation, and longer service life, in addition to requiring excellent lubrication performance, lubricating oil is also required to have characteristics such as low viscosity, low volatility, and excellent oxidation stability. This makes hydrogen treatment technology an important means of producing high-quality lubricating base oil today.
The main function of the hydrogen conversion production process for lubricating oil is to improve the viscosity temperature performance of the lubricating oil base oil.
The hydrotreating process uses a chemical conversion process, which involves the selective hydrocracking reaction of non ideal components into ideal components under the action of a catalyst and hydrogen, in order to improve the viscosity index.
Conclusion:
At present, the supply of lubricating oil in the world market exceeds demand, and structural contradictions are prominent. The development momentum of future lubricants mainly comes from two aspects.
(1) Reduce the cost of lubricating oil systems. Extending the oil change period through equipment manufacturers and equipment users, or significantly reducing operating costs through long-term equipment operation;
(2) Long term environmental friendliness and safety are required under working conditions. Good thermal oxidation stability, low volatility, high viscosity index, low sulfur/sulfur free, low viscosity, and environmental friendliness are the basic requirements for future lubricants.
Therefore, the most active isomerization dewaxing technology and Synthetic oil technology in the current lubricating oil processing technology will have a larger development space, and the development of lubricants with different uses and types will be the main development direction of lubricating oil production.
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