A kind of production method of high viscosity index lubricating oil base oil
A lubricating oil base oil and production method technology, applied in lubricating compositions, petroleum industry, processing hydrocarbon oil, etc., can solve the problems of increasing equipment construction investment, increasing equipment operation difficulty, unqualified products, etc., to reduce construction investment, The effect of reducing the number and reducing the heat load
Active Publication Date: 2015-11-18
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
[0007] Using narrow fraction waxy oil as the feed method of hydroisomerization dewaxing can solve the method of producing light and heavy high viscosity index lubricating oil base oil, but it needs to set up multiple raw material tanks and increase the construction investment of the device; Moreover, in actual production, it is necessary to frequently switch raw materials and frequently adjust process parameters, which greatly increases the difficulty of device operation and produces a large number of substandard products.
Method used
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Embodiment 1～3
[0035] Examples 1-3, the raw material directly enters the first hydroisomerization dewaxing reaction zone, and the product is fractionated by a hot high-pressure separator and a hot low-pressure separator to obtain light base oil products and heavy base oil components; heavy base oil The components enter the second hydroisomerization dewaxing reaction zone, and the products are fractionated to obtain heavy base oil products. The raw materials are the three raw materials listed in Table 1, and the catalysts listed in Table 2 are used for hydroisomerization dewaxing, and the results obtained are shown in Table 3. The hydroisomerization catalyst is reduced by a conventional method and then implemented. The top of the hot low-pressure separator after the first hydroisomerization dewaxing reaction zone produces No. 4 base oil, and the bottom product of the hot low-pressure separator enters the second hydroisomerization dewaxing reaction zone; the second hydroisomerization dewaxing ...
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Abstract
The invention relates to a production method for high-viscosity index lubricant base oil. According to the method, wax-bearing oil needing no pre-fractionation is used as a raw material for hydrogenation isomerization dewaxing, and enters into a first hydrogenation isomerization dewaxing reaction zone to complete a properly-deep hydrogenation isomerization reaction, reaction products are separated by a hot high pressure separator and a hot low pressure separator to obtain a high-viscosity-index light lubricant base oil product with the pour point meeting the requirements and heavy base oil components with higher pour point, the heavy base oil components enter into a second hydrogenation isomerization dewaxing reaction zone, and after fractionation of reaction products, a high-viscosity-index heavy lubricant base oil product with the pour point meeting the requirements is obtained. Compared with the prior art, the method provided by the invention has the following advantages: lubricant base oil with the quality meeting the requirements can be obtained, the process is simple and the operation energy consumption is low.
Description
technical field [0001] The invention relates to a production method of high viscosity index lubricating oil base oil. Specifically, a wide-cut waxy oil is directly used as a feedstock for hydroisomerization dewaxing to produce a high viscosity index lubricating base oil. Background technique [0002] Traditional lubricant base oil production adopts solvent refining process, in which two main steps are 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 production is graduall...
Claims
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IPC IPC(8): C10G67/02C10M177/00
Inventor 孙国权姚春雷全辉赵威张志银林振发
Owner CHINA PETROLEUM & CHEM CORP