Hydrogenation method for producing lubricating base oil
A technology for lubricating oil base oil and hydrocracking tail oil, which is applied in lubricating compositions, hydrotreating process, petroleum industry, etc. It can solve the problem of difficult adjustment of hydrofining reaction temperature, affecting hydrofining catalyst, and flexible device operation issues such as sexual restrictions
Active Publication Date: 2014-08-20
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
When the heat exchanger is used to cool the material, the control of the temperature of the material is not sensitive, which causes the problem that the hydrofining reaction temperature is difficult to adjust, affects the activity of the hydrofining catalyst, and the flexibility of the unit operation is limited.
At the same time, in order to adjust the heat exchange temperature, it is necessary to set up cross-lines in parallel with the heat exchanger. The heat exchanger often handles the adjustment state and cannot be in the ideal design working state, which has a significant impact on the heat exchange efficiency and reduces the energy utilization rate.
Method used
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Embodiment 1~3
[0031] Embodiments 1 to 3 adopt the hydrofinishing-hydroisomerization dewaxing-hydrogenation supplementary refining process to process the three kinds of raw materials listed in Table 1, wherein hydrofinishing, hydroisomerization dewaxing and hydrogenation supplementation Catalysts listed in Table 2 were used for refining, and the results obtained are shown in Table 3. The hydroisomerization and hydrofinishing catalysts are reduced by conventional methods and then implemented.
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Abstract
The present invention relates to a hydrogenation method for producing lubricating base oil. The method of the present invention adopts a reverse process of hydrorefining-hydroisomerization dewaxing-hydrofinishing to produce lubricating base oil. Firstly, raw materials are fed into a hydrorefining reactor to remove aromatic hydrocarbons in the raw materials, improve color and improve stability. The products of the hydrorefining process are fed into a hydroisomerization dewaxing-hydrofinishing reactor to reduce a pour point, saturate olefin and produce the lubricating base oil. According to the present invention, reasonable match of the reaction temperatures in hydrorefining and hydroisomerization dewaxing processes is realized by adopting the process in a reasonable order, so the purpose of regulating the hydrorefining reaction temperature safely, flexibly and effectively is achieved, which is conducive to the better exertion of hydrorefining catalyst activity, and a better product nature of the lubricating base oil.
Description
technical field [0001] The invention relates to a method for producing lubricating base oil by hydrogenation. Specifically, it is a method of producing lubricating oil base oil by adopting the reverse sequence process of hydrofining-hydroisomerization dewaxing-supplementary refining. Background technique [0002] Traditional lubricating base oil production is based on solvent refining process, the two main steps are to use solvent refining to remove non-ideal components such as aromatics and solvent dewaxing to ensure the low temperature fluidity of the base oil. In addition, white clay or hydrogenation supplementary refining is generally carried out. [0003] The increasingly stringent environmental regulations and the rapid development of the machinery industry have put forward higher and higher requirements on the performance of lubricating base oils. At the same time, due to the deterioration of crude oil worldwide, the amount of crude oil suitable for lubricating oil ...
Claims
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IPC IPC(8): C10G65/04C10M177/00
Inventor 全辉赵威张志银王鑫林振发
Owner CHINA PETROLEUM & CHEM CORP