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Oil storage tank soil leakage monitoring technology adopting magnetic tracer

A tracer and oil storage tank technology, which is applied in the field of soil penetration detection of oil storage tanks, can solve the problem that oil leakage cannot be prevented, and oil storage tank leakage and small leakage cannot be detected timely and accurately. Oil storage tank leakage does not have real-time online monitoring and alarm functions and other issues

Active Publication Date: 2020-10-23
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, due to the influence of the accuracy of the liquid level gauge, other environments, and on-site factors, it is often impossible to detect the leakage and small amount of leakage of the oil storage tank in a timely and accurate manner.
Moreover, the common method for the detection of oil storage tank leakage does not have real-time online monitoring and alarm functions, and cannot prevent oil leakage.

Method used

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  • Oil storage tank soil leakage monitoring technology adopting magnetic tracer
  • Oil storage tank soil leakage monitoring technology adopting magnetic tracer
  • Oil storage tank soil leakage monitoring technology adopting magnetic tracer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A preparation method of a magnetic tracer, comprising:

[0062] Step 1, take FeC1 at a molar ratio of 2:1 3 ·6H 2 O and FeCl 2 4H 2 0, then add distilled water according to the material-liquid ratio of 1g: 15mL, stir and react for 30min at 70°C, after the reaction finishes, add ammoniacal liquor according to the material-liquid ratio of 1g: 3mL to make the magnetic Fe in the reaction 3 o 4 The nanoparticles are precipitated and ready for use;

[0063] Step 2, the magnetic Fe with a mass ratio of 1:18 3 o 4 Nanoparticles and glucose were added to deionized water, ultrasonically treated for 20 minutes, and reacted at 200°C for 3 hours. After cooling naturally, the product was washed with deionized water for 5 times, then with ethanol for 5 times, and dried in vacuum to obtain Fe 3 o 4 @C microsphere;

[0064] Step 3, by 20wt% Fe 3 o 4 @C microspheres were dispersed in Augeo SL-191 solvent, then glycidyl methacrylate, triethylamine and hydroquinone were added, n...

Embodiment 2

[0069] A preparation method of a magnetic tracer, comprising:

[0070] Step 1, take FeC1 at a molar ratio of 2:1 3 ·6H 2 O and FeCl 2 4H 2 0, then add distilled water according to the material-liquid ratio of 1g:12mL, and stir the reaction for 45min at 65°C. After the reaction finishes, add ammoniacal liquor according to the material-liquid ratio of 1g:4mL to make the magnetic Fe 3 o 4 The nanoparticles are precipitated and ready for use;

[0071] Step 2, the magnetic Fe with a mass ratio of 1:24 3 o 4Nanoparticles and glucose were added to deionized water, ultrasonically treated for 30 minutes, and reacted at 180°C for 5 hours. After cooling naturally, the product was first washed with deionized water for 3 times, then washed with ethanol for 3 times, and dried in vacuum to obtain Fe 3 o 4 @C microsphere;

[0072] Step 3, by 15wt% Fe 3 o 4 @C microspheres were dispersed in Augeo SL-191 solvent, then glycidyl methacrylate, triethylamine and hydroquinone were added, ...

Embodiment 3

[0077] A preparation method of a magnetic tracer, comprising:

[0078] In step 2, the magnetic Fe with a mass ratio of 1:24 3 o 4 Nanoparticles and glucose were added to deionized water, then gluconic acid with glucose weight of 0.6wt% was added, ultrasonic treatment was carried out for 30 minutes, and the reaction was carried out at 180°C for 5 hours. Washed 3 times with ethanol and dried in vacuum to obtain Fe 3 o 4 @C microsphere; All the other are consistent with embodiment 2.

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Abstract

The invention discloses an oil storage tank soil leakage monitoring technology adopting a magnetic tracer, and belongs to the technical field of soil permeability detection of oil storage tanks. An oil product in an oil storage tank contains the magnetic tracer which is composed of a core layer and a shell layer; the material forming the core layer is magnetic Fe3O4 nano particles; the shell layeris made of a carbon layer, the carbon layer is a polysaccharide layer obtained by hydrothermal reaction of glucose, and glycidyl methacrylate and abietic acid are grafted on the surface of the carbonlayer. The magnetic tracer is not prone to magnetism weakening caused by oxidation or acid-base corrosion, has a low oil contact angle, can be stably dispersed in an oil phase for a long time, has high magnetic responsiveness and can be easily detected by a magnetic sensor. According to the monitoring technology, a monitoring device comprising a detection module is used for collecting the level signal corresponding to the magnetic field signal generated by the magnetic tracer, the soil leakage condition of the oil storage tank is monitored, and the monitoring method is high in sensitivity, high in positioning precision, environmentally friendly and wide in monitoring range.

Description

technical field [0001] The invention belongs to the technical field of soil infiltration detection of oil storage tanks, and in particular relates to a soil leakage monitoring technology of oil storage tanks using a magnetic tracer. Background technique [0002] Petroleum is a serious pollutant. At present, most gas stations in China use buried oil storage tanks to store oil products, and the nature of oil itself is relatively complex, with strong corrosiveness, and there is a serious problem of corrosion of oil storage tanks; and buried oil storage The tank is buried underground for a long time under the action of geological disasters and natural corrosion. As the service life increases, leakage will occur. If the leakage cannot be detected in time, it will not only cause potential safety hazards and economic losses, but also pollute the soil and groundwater, causing serious harm to the environment. At present, the leakage detection of buried oil storage tanks mostly adop...

Claims

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Application Information

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IPC IPC(8): B01J13/02B65D88/76B65D90/51
CPCB01J13/02B65D88/76B65D90/51
Inventor 郭健
Owner ZHEJIANG OCEAN UNIV