Unlock instant, AI-driven research and patent intelligence for your innovation.

High-temperature liquid-phase dechlorinating agent for waste lubricating oil hydrofining system and preparation method thereof

A technology for hydrorefining and waste lubricating oil, applied in the direction of lubricating composition, etc., can solve the problems of high viscosity, large resistance, low chlorine capacity, etc., and achieve the effect of increasing diffusion capacity and enhancing stability

Pending Publication Date: 2022-01-25
湖北润驰环保科技有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current high-temperature liquid phase dechlorination agent for waste lubricating oil generally has the problem of low chlorine capacity. The main reason is that the main components of waste lubricating oil have relatively high molecular weight and relatively high viscosity. Hydrogen chloride and dechlorination in lubricating oil after hydrofining Most of the reaction of the active components of the dechlorination agent reacts on the surface of the dechlorination agent, the reaction is mainly controlled by the kinetics of the inner surface, and the resistance of the reactant to diffuse to the deep layer is relatively large.

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

[0024] Weigh 314g of high-temperature calcined dolomite, 65g of zinc oxide, 13g of ferric oxide, 2g of cerium oxide, 100g of ZSM-5 molecular sieve powder, 550g of macroporous pseudo-boehmite, and 120g of diatomite, and grind them to more than 300 meshes respectively. Mix thoroughly and evenly, put the mixed powder into the rolling ball machine, and add appropriate amount of water to make the above powder form spherical particles with a diameter of 3-5mm during continuous rolling. Preserve at room temperature for 12 hours, dry at 120°C, and roast at 450°C for 4 hours to obtain dechlorination agent 1.

Embodiment 2

[0026] Weigh 570g of high-temperature calcined dolomite, 20g of zinc oxide, 5g of lanthanum oxide, 50g of ZSM-11 molecular sieve powder, 380g of macroporous pseudo-boehmite, and 80g of diatomite, grind them to 300 mesh or above, mix well, and add appropriate amount Knead with water to form a paste and extrude into strips. Preserve at room temperature for 20 hours, dry at 100°C, and roast at 400°C for 3 hours to obtain dechlorination agent 2.

Embodiment 3

[0028] Weigh 550g of high-temperature calcined dolomite, 30g of basic zinc carbonate, 100g of ZSM-5 molecular sieve powder, 310g of macroporous pseudo-boehmite, and 130g of diatomaceous earth, grind them to 300 mesh or above, mix well, and add appropriate amount of water to knead Into a paste, extrusion molding. Preserve at room temperature for 24 hours, dry at 110°C, and bake at 500°C for 5 hours to obtain dechlorination agent 3.

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
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a high-temperature liquid-phase dechlorinating agent for a waste lubricating oil hydrofining system and a preparation method thereof. The dechlorinating agent is composed of dolomite, an accelerant and a carrier, the accelerant is selected from one or more of a zinc-containing compound, an iron-containing compound, a lanthanum-containing compound and a cerium-containing compound, and the carrier is selected from a molecular sieve, macroporous pseudo-boehmite and diatomite; and in terms of the mass of the dechlorinating agent, the content of the dolomite is 26.98-51.58%, the content of the accelerant is 0.53-6.87% in terms of oxide, and the balance is the carrier. The dechlorinating agent disclosed by the invention is used for dechlorinating oil subjected to hydrofining of waste lubricating oil under the conditions that the temperature is 300-380 DEG C, the pressure is 8-16 MPa and the liquid space velocity is 1-3 h<-1>, and the dechlorinating precision and chlorine capacity are very high.

Description

technical field [0001] The invention relates to the technical field of dechlorination of oil products, in particular to a high-temperature liquid-phase dechlorination used in a waste lubricating oil hydrotreating system and a preparation method thereof. Background technique [0002] With the rapid development of the national economy, the use of lubricating oil is increasing, so the amount of waste lubricating oil is also increasing year by year. The recycling of waste lubricating oil is of great significance in terms of resource utilization and environmental protection. Recycling waste lubricating oil through hydrofining process is currently a relatively effective means, which can produce high-quality lubricating base oil, and has high environmental protection, economy and operability. [0003] The main impurities in waste lubricating oil are water, sludge, colloid, asphaltenes, additives and their decomposition products, organic acids and their salts, heteroatom (S, N, O an...

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): C10M175/00
CPCC10M175/0016C10M175/0041
Inventor 王瑜郑敏郭声旭李勇胡云斐曾格马子豪毛鲁依呷胡伟伟黄杰吴宇飞张先茂王骥飞
Owner 湖北润驰环保科技有限公司