Supercharge Your Innovation With Domain-Expert AI Agents!

Complete-hydrogenation regeneration technology for waste lubricating oil, and preparation methods of hydrogenation catalysts

A technology for waste lubricating oil and catalyst, which is applied in hydrotreating processes, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems of the complexity of solvent recovery system, high energy consumption, and waste chemical reagents, etc., and achieve large pore volume. , good selectivity and high activity

Inactive Publication Date: 2019-12-17
CHONGQING TECH & BUSINESS UNIV
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this method are the complexity of the solvent recovery system, the high energy consumption, and the generation of waste chemicals during the water / solvent separation process

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Complete-hydrogenation regeneration technology for waste lubricating oil, and preparation methods of hydrogenation catalysts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Preparation of catalyst carrier for hydrogenation removal of heteroatoms, according to the mass ratio of 100:3:5, respectively weigh 100 g of aluminum hydroxide dry glue, 3 g of turmeric powder, and 5 g of concentrated nitric acid, and mix aluminum hydroxide Mix the dry glue and sage powder thoroughly, mix the concentrated nitric acid and an appropriate amount of distilled water, and add slowly to make the reagents dispersed as evenly as possible. Extruded on the F-26 twin-screw extruder, and then in 120 o C for 8 h, and finally in a muffle furnace at 500 o C was calcined for 4 h to obtain an alumina support. Weigh 10 g of the carrier with an electronic balance, put it into a 50 ml beaker, add distilled water to cover the carrier, let it stand for 1 hour, blot the free water on the surface of the carrier with filter paper, and calculate its water absorption after weighing.

Embodiment 2

[0028] Example 2: The preparation of the catalyst carrier for hydrogenation modification, according to the mass ratio of 100:20:3:5, respectively weigh 100 g of aluminum hydroxide dry glue, 20 g of SAPO-11 molecular sieve, 3 g of kale powder, concentrated 5 g of nitric acid, fully mix aluminum hydroxide dry glue, SAPO-11 molecular sieve, and turnip powder, mix concentrated nitric acid and appropriate amount of distilled water, and add slowly to make the reagents dispersed as evenly as possible. Extruded on the F-26 twin-screw extruder, and then in 120 o C for 8 h, and finally in a muffle furnace at 500 o C was calcined for 4 h to obtain a composite carrier of alumina and SAPO-11 molecular sieve. Weigh 10 g of the carrier with an electronic balance, put it into a 50 ml beaker, add distilled water to cover the carrier, let it stand for 1 hour, blot the free water on the surface of the carrier with filter paper, and calculate its water absorption after weighing.

Embodiment 3

[0029] Embodiment 3: the modification of hydrogenation removal heteroatom catalyst support, take by weighing 100 g support in embodiment 1, 2.664 gH 3 BO 3 , Dissolving boric acid with an appropriate amount of distilled water to obtain a boric acid solution. Put the carrier in a 500 ml beaker, add the boric acid solution to the beaker several times in small amounts, shake it well until the carrier completely absorbs the impregnating solution, keep it airtight and stand for 2 h, at 80 o C for 8 h, then in a muffle furnace at 500 oC Calcined at lower temperature for 4 h, and then removed to room temperature to obtain a boron-modified carrier.

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

PropertyMeasurementUnit
specific surface areaaaaaaaaaaa
sizeaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a complete hydrogenation regeneration technology of waste lubricating oil. The technology comprises the following steps: waste lubricating oil pretreatment, hydrogenation demetalization, hydrogenation heteroatom removal and hydrogenation modification. The invention also provides matched hydrogenation catalysts for the regeneration technology. Moisture, mechanical impurities,colloids, asphaltene and heavy metal impurities in the waste lubricating oil raw material are pretreated, the residual heavy metal impurities are further hydrogenated and removed, and then non-idealcomponents such as sulfur, nitrogen and oxygen heteroatoms in the waste lubricating oil are removed under the action of a hydrogenation heteroatom removal catalyst; and finally, n-alkanes are converted into single-branched-chain or double-branched-chain isoparaffin under the action of a hydro-upgrading catalyst in order to remarkably improve the quality of regenerated oil. The regeneration technology has a high product yield, and the quality of the regenerated lubricating oil product can meet the standard requirements of lubricating oil base oil.

Description

technical field [0001] The invention belongs to the technical fields of oil refining, environmental protection and energy, and relates to a full hydrogenation regeneration method of waste lubricating oil. Background technique [0002] With the increasing awareness of environmental protection and the increasingly stringent environmental laws, the treatment and reuse of waste lubricating oil are becoming more and more important. Waste lubricating oil is either discarded or burned, which not only causes waste of resources, but also causes serious pollution to the environment. Lubricating oil is composed of base oil and additives. Although its properties have changed after a period of use and must be replaced, waste lubricating oil is still dominated by base oil and additives, with a content of more than 90%. Through the process of removing impurities in the used lubricating oil and regenerating the deteriorated components, the used lubricating oil can be recycled, and even reg...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/06B01J29/85B01J23/888C10M175/00
CPCB01J23/8885B01J29/85B01J2523/00C10G67/06C10G2300/1007C10G2300/202C10G2300/205C10G2300/304C10M175/0041B01J2523/31B01J2523/68B01J2523/69B01J2523/845B01J2523/847
Inventor 李自夏张贤明冉印
Owner CHONGQING TECH & BUSINESS UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com