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A kind of production method of special oil

A production method and technology for oil products, applied in the field of producing naphthenic special oil products by hydrogenation process, can solve problems such as inability to meet the requirements

Active Publication Date: 2021-05-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing technologies cannot meet the requirements of naphthenic distillates or light deoiled hydrogenation to produce special oils

Method used

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  • A kind of production method of special oil
  • A kind of production method of special oil
  • A kind of production method of special oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] like figure 1 In the process shown, the hydrotreating reaction zone uses a hydrofining catalyst, and the catalyst in the supplementary refining reaction zone is not segmented, but only one catalyst A is used. The properties of the catalysts used are listed in Table 1 and Table 2 respectively, and the properties of the obtained special oil fraction are shown in Table 4.

[0050]All supplementary refining catalysts used in the examples were prepared according to the method disclosed in CN104588073A.

Embodiment 2

[0052] The hydroprocessing part is the same as that in Example 1, and only catalyst B is used in the supplementary refining reaction zone. The properties of special oil fractions can also be obtained as shown in Table 4.

Embodiment 3

[0054] The hydrotreating part is the same as that in Example 1, and the supplementary refining reaction zone is divided into two supplementary refining sections, and the gradation scheme of catalyst A and catalyst B is adopted. At the same time, the process conditions are also matched. The properties of special oil fractions are shown in Table 4.

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Abstract

The invention discloses a production method of cycloalkyl special oil. Naphthenic distillate oil is used as raw material, and naphthenic special oil is produced by a two-stage serial hydrogenation process of hydrotreating-deep supplementary refining. After the hydrogenation treatment reaction effluent is stripped, it enters the deep supplementary refining reaction zone. The deep supplementary refining reaction zone can be equipped with two kinds of supplementary refining catalysts. According to the different characteristics of the raw materials, different supplementary refining catalyst combinations are used to produce different types of rings. Alkyl specialty oils. The method of the invention has simple process flow and wide adaptability of raw materials, and can be applied to the process of hydrogenation of various raw materials to produce special oil products with good stability.

Description

technical field [0001] The invention relates to a production method of special oil, in particular to a method for producing naphthenic special oil by hydrogenation process. Background technique [0002] 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. In addition, white clay or hydrogenation supplementary refining is generally carried out. [0003] Crude oil can be classified by the characteristic factor K. The characteristic factor K greater than 12.1 is paraffinic crude oil; the characteristic factor K is 11.5-12.1 is intermediate base crude oil; the characteristic factor K is less than 11.5 is naphthenic crude oil. The alkane content of paraffin-based distillates generally exceeds 50%, and the traditional lubricating oil base oil production process can produce lubricating ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02
CPCC10G67/02C10G2300/4006C10G2300/4012C10G2300/70
Inventor 孙国权方向晨樊宏飞姚春雷全辉张志银
Owner CHINA PETROLEUM & CHEM CORP