Combination process of residual oil hydrotreating and bright oil production

A combined process and residual oil hydrogenation technology, which is applied in the direction of hydrotreating process, hydrocarbon oil treatment products, hydrocarbon oil treatment, etc., can solve the problems of lower base oil yield, viscosity loss, restriction, etc., and achieve improved color and oxidation Stability, lower pour point, color improvement effect
CN110607191BActive Publication Date: 2021-11-12CHINA PETROLEUM & CHEM CORP +1
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2021-11-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to the field of petrochemical industry, and discloses a combination process of residual oil hydrogenation treatment and bright oil production, the process includes: contacting hydrogen, residual oil raw materials and co-solvent with a catalyst, and regenerating the separated hydrogenated residual oil tail oil Separation into vacuum wax oil and vacuum residue; use deasphalting solvent to solvent extract the vacuum residue to obtain extract and raffinate and remove the solvent to obtain deasphalted oil and deoiled asphalt; use dewaxing solvent to extract Solvent dewaxing the deasphalted oil to obtain dewaxed filtrate and wax paste and remove the solvent to obtain dewaxed oil and oily wax; use extraction solvent to solvent refine the dewaxed oil to obtain raffinate and extract and remove the solvent Refined oil and extracted oil are obtained; the refined oil is adsorbed and refined with an adsorbent, and bright oil is separated to obtain bright oil, and the co-solvent is solvent refined extracted oil. The method of the invention can reduce the coking amount of the catalyst, prolong the operation cycle of the device, and simultaneously produce bright stock meeting the lubricating oil base oil standard.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to the combined process of residual oil hydrotreating process and its vacuum residue product through lubricating oil base oil production process, in particular, to a kind of residual oil hydrotreating and high-viscosity lubricating oil base oil (bright stock) Combination process of production. Background technique

[0002] As the quality of crude oil processed by my country's oil refining enterprises becomes inferior and heavy, the amount of residual oil continues to increase. Residual oil generally refers to crude oil distillation and separation of gasoline, kerosene and diesel fractions, and then vacuum distillation to separate vacuum wax oil fractions. Residual oil with a boiling point above 520°C has the characteristics of high boiling point and high impurity content. The most difficult raw material to process in the refining process.

[0003] One method of traditional residual oil processing is thermal processing, w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More