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A kind of processing method of naphthenic oil

A treatment method and technology for naphthenic oil, which are applied in the treatment of hydrocarbon oil, hydrotreating process, petroleum industry, etc., can solve problems such as inability to meet

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 processing method of naphthenic oil
  • A kind of processing method of naphthenic oil
  • A kind of processing method of naphthenic oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 In the process shown, the hydrotreating reaction zone uses a hydrorefining catalyst, the hydrodecondensation reaction zone uses a FDW-3 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 2 and Table 3 respectively, and the properties of the special oil fraction obtained are shown in Table 4.

[0038] All supplementary refining catalysts used in the examples were prepared according to the method disclosed in CN104588073A.

Embodiment 2

[0040] The hydrotreating and hydrodecondensation parts are the same as 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

[0042] The hydrotreating and hydrodecondensation parts are the same as 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 (catalyst A is loaded in the first supplementary refining section, and catalyst A is loaded in the second supplementary refining section). Stage packing catalyst B). 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 method for treating naphthenic oil. Using naphthenic distillate oil as raw material, the naphthenic special oil is produced by a two-stage serial hydrogenation process of hydrotreating-hydrodecondensation-deep replenishment refining. Hydroprocessing-The liquid obtained from the hydrodecondensation reaction generates oil and then enters the supplementary refining reaction zone for liquid-phase hydrogenation supplementary refining reaction, and the obtained effluent is separated and fractionated to obtain special oil product fractions. The method of the invention has simple process flow and wide adaptability of raw materials, and is especially suitable for the process of producing special oil products with good stability by hydrogenating naphthenic raw materials.

Description

technical field [0001] The invention relates to a method for treating naphthenic 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 lubricatin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/04
CPCC10G65/04
Inventor 孙国权方向晨全辉姚春雷赵威张志银
Owner CHINA PETROLEUM & CHEM CORP