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Waste lubricating oil debrominating agent and preparation method thereof

A waste lubricating oil and debromination agent technology, applied in chemical instruments and methods, hydrocarbon oil treatment, petroleum industry, etc., can solve the problems of high production cost, poor stability, and restrictions on large-scale industrial production of 7-DHC

Active Publication Date: 2022-03-25
湖北润驰环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing recovery methods have defects such as difficult operation, high environmental pollution, poor stability, low recovery rate and high production cost, which once restricted the large-scale industrial production of 7-DHC.

Method used

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  • Waste lubricating oil debrominating agent and preparation method thereof
  • Waste lubricating oil debrominating agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 472.6g silica sol (SiO 2 content of 30%), 27.0g zinc chloride, 52.8g zirconium sulfate, 27.4g molybdenum nitrate, 5.0g tetraethylammonium bromide and 600g water, stir for 6h, mix well, get the initial sol-gel mixture, the initial sol-gel The rubber material was moved into a synthesis kettle and sealed, crystallized at 230°C for 30 hours, and the pH value of the crystal slurry was adjusted to 8.5. After the reaction was completed, the above slurry was added to a flocculant for precipitation, filtered, washed, dried, and extruded to shape. After 120 Dry at ℃ for 5 hours, spray 660g of isobutanol solution with a mass fraction of 3.9% copper chloride and 0.1% dysprosium sulfate in the spraying device to modify the debromination agent, after spraying, roast at 400°C for 3 hours, and then pass in water vapor , the volume ratio of water vapor to air is 1:10, keep the temperature at 550°C for another 3h, then stop the introduction of water vapor, and continue roasting at 480°C ...

Embodiment 2

[0019] 472.6g silica sol (SiO 2 content of 30%), 71.6g of zinc sulfate, 17.2g of zirconium sulfate, 7.64g of molybdenum dichloride hexahydrate, 5.0g of tetraethylammonium bromide and 600g of water, stirred for 6h, and mixed uniformly to obtain the initial sol-gel mixture, The initial sol-gel material is transferred into a synthesis kettle and sealed, crystallized at 260°C for 12 hours, and the pH value of the crystal slurry is adjusted to 8.5. After the reaction is completed, the above slurry is added to a flocculant for precipitation, filtered, washed, dried, and extruded. , dried at 160°C for 5 hours, sprayed 260g of isobutanol solution with a mass fraction of 4.8% copper sulfate and 0.1% dysprosium chloride in the spraying device to modify the debromination agent, after spraying, roasted at 480°C for 2 h, Then feed water vapor, the volume ratio of water vapor and air is 1:10, keep the temperature at 550°C for another 3 hours, then stop feeding water vapor, and continue roas...

Embodiment 3

[0021] 484.6g silica sol (SiO 2 content of 30%), 57.2g of zinc nitrate, 39.6g of zirconium sulfate, 26.2g of molybdenum sulfate, 5.0g of tetraethylammonium bromide and 600g of water, stirred for 6 hours, and mixed evenly to obtain the initial sol-gel mixture, the initial sol-gel The material was moved into a synthesis kettle and sealed, and crystallized at 240°C for 18 hours, and the pH value of the crystal slurry was adjusted to 8.5. After the reaction was completed, the above slurry was added to a flocculant for precipitation, filtered, washed, dried, extruded, and heated at 150°C. After drying for 5 hours, spray 360g isobutanol solution with mass fraction of 5% copper nitrate and 0.1% dysprosium sulfate in the spraying device to modify the debromination agent. The volume ratio of steam to air is 1:10, keep the temperature at 550°C for another 3h, then stop the introduction of water vapor, and continue roasting at 480°C for 3h in the air to obtain a specific pore size, large...

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Abstract

The invention discloses a waste lubricating oil debromination agent and a preparation method thereof, and the preparation method comprises the following steps: preparing a SiO2-ZrO2-ZnO composite carrier containing an active component Mo, then directionally spraying an isobutanol solution containing Cu-Dy, and loading the active component Cu-Dy on the surface of the composite carrier. The debrominating agent takes the composite oxide as a carrier, can well disperse active halogen, has an ordered pore channel structure, a specific pore diameter and a large pore volume, can effectively remove bromine elements in waste lubricating oil, and prolongs the subsequent operation cycle of a waste lubricating oil hydrogenation catalyst.

Description

technical field [0001] The invention relates to a waste lubricating oil debromination agent and a preparation method thereof, belonging to the field of oil refining. Background technique [0002] During the refining process of lubricating oil, a certain amount of additives such as tribromobiphenyl will be introduced, resulting in excessively high Br content in waste lubricating oil. The halogen element Br has an empty d orbital, which is easy to adsorb olefins to form complexes. During the reaction process, the olefins in the waste lubricating oil are adsorbed by the halogen center, causing the catalyst to produce a large amount of coke, which blocks the pores of the hydrogenation catalyst and reduces the pore volume of the catalyst. Tribromobiphenyl enters the hydrorefining unit with waste lubricating oil, and under the action of hydrogen and hydrogenation catalyst, hydrogen bromide is generated, which has a corrosive effect on carbon steel pipelines and will cause the dest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/887B01J35/10C10G45/04
CPCB01J23/8873B01J23/002C10G45/04B01J2523/00C10G2300/202C10G2300/1007B01J35/638B01J35/615B01J35/635B01J35/647B01J2523/17B01J2523/27B01J2523/3762B01J2523/41B01J2523/48B01J2523/68
Inventor 王瑜金建涛冯磊章晨勇向前黄波张九木杜亚菲苟麒麟吴进峰邹甍王俊杰
Owner 湖北润驰环保科技有限公司
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