Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Utilizing method for spent lubricating oil vacuum residues and application thereof

A technology for vacuum residue oil and waste lubricating oil, which is applied in the directions of lubricating compositions, building components, building insulation materials, etc. Pollution and other problems, to achieve good chromaticity, reduce raw material costs, and be environmentally friendly.

Active Publication Date: 2016-02-03
安徽国孚凤凰科技有限公司
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The commonly used waste lubricating oil regeneration method is to use vacuum distillation to separate and recover base oil. The existing waste lubricating oil distillation technology can separate 60-80% of the base oil components in this process. For the remaining vacuum distillation Due to the high impurity content of the final vacuum residue, the base oil components cannot be effectively separated and recovered by means of distillation.
[0004] The currently used vacuum distillation regeneration process, because the vacuum residue cannot be effectively used economically, the profit of each ton of recycled base oil produced through this process is only about 100 yuan, and the profit is extremely low
Moreover, in the currently used vacuum residue treatment process, a large amount of acid, alkali, white clay and water need to be used, which seriously pollutes the environment

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for utilizing waste lubricating oil vacuum residue, characterized in that the steps are as follows:

[0026] Step 1, extracting the vacuum residual oil of the waste lubricating oil to be treated with a mixed solvent of NMP and octane; in the extraction process, the consumption ratio (volume ratio) of the mixed solvent to the vacuum residual oil of the waste lubricating oil is: 2:1; The dosage ratio (volume ratio) of NMP to octane in the mixed solvent is 1:1.

[0027] In step 2, the extraction liquid is distilled to recover the solvent to obtain the residual oil regeneration base oil, and the raffinate liquid is distilled to recover the solvent and the residue is used to prepare high-grade asphalt products; the operating temperature range of the extraction liquid and the raffinate distillation recovery solvent is as follows: 240 ~ 280 ℃, the operating pressure is normal pressure operation. Because of the mixed solvent used, although the two liquid phases of the...

Embodiment 2

[0032] A method for utilizing waste lubricating oil vacuum residue oil, comprising the following steps:

[0033] Step 1, extracting the vacuum residue of the waste lubricating oil to be treated with a mixed solvent of NMP and octane; in the extraction process, the consumption ratio (volume ratio) of the mixed solvent to the vacuum residue of the waste lubricating oil is: 4:1; The dosage ratio (volume ratio) of NMP to octane in the mixed solvent is 1:4.

[0034] Step 2 and Step 3 are the same as in Example 1.

Embodiment 3

[0036] A method for regenerating waste lubricating oil, comprising the following steps:

[0037] Step 1, obtain distillate oil and vacuum residue by vacuum distillation;

[0038] Step 2, using NMP as a solvent to extract the distillate oil, the volume ratio of the distillate oil and NMP is 1:2, after the solvent is recovered by atmospheric distillation of the raffinate, a regenerated base oil with a higher quality is obtained, and the raffinate is distilled under atmospheric pressure. After recovering the solvent, use No. 6 solvent oil for extraction. The volume ratio of the extract after the solvent is recovered by distillation and the No. 6 solvent oil is 1:1. After the residual liquid is distilled to recover the solvent, the residue is used to make high-grade asphalt. The available base oil components contained in the distillate oil account for 92-96% of its total amount, and the rest are impurities such as heavy aromatics, gums and additives. The solubility of NMP to thes...

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

PUM

No PUM Login to View More

Abstract

The invention discloses a utilizing method for spent lubricating oil vacuum residues and application thereof. According to the method, mixed solvent of NMP and octane is used for extracting spent lubricating oil vacuum residues to be treated to separate a base oil part and impurities, so that regenerated base oil and high-grade asphalt products are obtained. Compared with the prior art, the method has the advantages that the mixed solvent of NMP and octane is used for separating base oil ingredients which are mainly alkane from the other impurities, the solvent is recovered by means of distillation operation, and therefore the spent lubricating oil vacuum residues can be utilized effectively; energy consumption is low, and recovery efficiency is high; the profit rate is increased by reducing the material cost of an enterprise; the regenerated base oil obtained through the method is high in purity and good in color scale; in the whole treatment process, the solvent is recovered and recycled, the products are also utilized effectively, waste discharge and treatment are avoided, and the method is environmentally friendly and economical.

Description

technical field [0001] The invention relates to the technical field of petroleum refining, in particular to a utilization method of waste lubricating oil vacuum residue. Background technique [0002] Lubricating oil waste oil regeneration technology Oil is widely used in machinery, chemical and other fields. After the oil is used, it is mixed with various impurities such as water, organic matter, pigment and dust, and is often discarded. The waste lubricating oil contains 90-95% of base oil, and the rest is colloid, asphaltene, additives and other impurities. [0003] The commonly used waste lubricating oil regeneration method is to separate and recover the base oil by vacuum distillation. The existing waste lubricating oil distillation technology can separate 60-80% of the base oil components in this process. For the remaining vacuum distillation Because the impurity content of the vacuum residue is too high, it is impossible to effectively separate and recover the base o...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C10M175/00C08L95/00C08L91/00
Inventor 李书龙丁德青曹汛
Owner 安徽国孚凤凰科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com