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Method for hydrogenating naphthenic base distillate to produce lubricating oil basic oil

A technology for naphthenic distillate oil and lubricating oil base oil, applied in lubricating composition, hydrotreating process, petroleum industry, etc., can solve the problems of no freezing point and improvement, achieve more secondary pores and prolong service life , The effect of reducing the pour point of the product

Active Publication Date: 2012-01-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN1990833A discloses a method of using naphthenic oil as a raw material to produce transformer oil through hydrotreating-hydrofining in series. This method does not improve the freezing point, and it is necessary to select suitable raw materials to obtain ideal products
[0004] In the process of producing lubricating oil base oil by the above-mentioned hydrogenation method, although lubricating oil base oil with better quality can be obtained, some aspects of the properties of the base oil still need to be further improved, such as the lubricating oil base oil produced by the existing hydrogenation method Indexes such as thermal stability and light stability need to be further improved

Method used

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  • Method for hydrogenating naphthenic base distillate to produce lubricating oil basic oil
  • Method for hydrogenating naphthenic base distillate to produce lubricating oil basic oil
  • Method for hydrogenating naphthenic base distillate to produce lubricating oil basic oil

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Embodiment 1

[0033] Embodiment 1 In the upper part of the first reactor, the hydroprocessing catalyst FF-26 is filled, and the lower part is filled with the hydroprocessing catalyst FC-14. The FC-14 catalyst loading is 10% of the total hydroprocessing catalyst volume. The second reaction The first reactor is filled with hydrodecondensation catalyst FDW-3, and the third reactor is filled with supplementary refining catalyst FV-10. The catalyst loaded in Example 2 is the same as that in Example 1, except that the loaded amount of FC-14 catalyst is 20% of the volume of the total hydrotreating catalyst. The specific process conditions and product properties of Examples 1-2 are shown in Table 3.

[0034] The physicochemical property of table 2 catalyst

[0035]

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Abstract

The invention relates to a method for hydrogenating naphthenic base distillate to produce lubricating oil basic oil. The naphthenic distillate is used as raw material and a one-stage in series hydrogenation process of hydrotreating-hydrodewaxing-hydrofinishing is adopted to produce the lubricating oil basic oil. Ordinary hydrotreating catalysts are filled in the upper part of a hydrotreating reaction area, and hydrotreating catalysts containing modified zeolites are filled in the lower part of the hydrotreating reaction area. The hydrodewaxing and hydrofinishing reaction areas are the same as those of the prior art, and are filled with hydrodewaxing catalysts and hydrofinishing catalysts. Compared with the prior art, the method disclosed by the invention has the advantages that system energy consumption is reduced, the pour point of a product is properly reduced, and the stability of the product is effectively improved.

Description

technical field [0001] The invention relates to a hydrogenation process of naphthenic distillate oil, in particular to an improved process for producing lubricating oil base oil by hydrogenation using naphthenic distillate oil as raw material. Background technique [0002] Naphthenic crude oil has the characteristics of high density, high viscosity, low wax content, high content of aromatic hydrocarbons and naphthenes, and low freezing point. Refrigerator oil, rubber filling oil, etc. The traditional production of lubricating base oils is based on the solvent process. The 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. Nowadays, the technology of producing lubricating oil by hydrogenation method is developing very rapidly. Hydrogenation method refers to the process of producing lubricating oil base oil by hydrotreating or hydrocracking-hydrogenation decondensat...

Claims

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Application Information

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IPC IPC(8): C10G65/02C10M177/00
Inventor 姚春雷王鑫张志银赵威
Owner CHINA PETROLEUM & CHEM CORP
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