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Modification method of ironwork for petroleum field

An iron product and modification technology, applied in the direction of metal material coating process, etc., can solve the problems of iron product corrosion, large crude oil flow resistance, energy waste, etc., and achieve the effect of good corrosion resistance and low crude oil adhesion.

Inactive Publication Date: 2021-07-23
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But petroleum usually contains corrosive substances, such as alkali, acid and salt, etc., which usually cause corrosion to iron products
In addition, iron products have strong adhesion to crude oil. This characteristic of iron products will cause energy waste and increase the cost of petroleum products.
For example, due to the strong adhesion of crude oil to iron products, the flow resistance of crude oil in iron pipes is relatively large, resulting in high transportation costs for crude oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] (1) Prepare the aqueous solution of 50% phytic acid and the chitosan quaternary ammonium salt solution with a mass concentration of 30% respectively.

[0018] (2) Apply the phytic acid solution evenly on the surface of the 200-mesh steel mesh, and after standing for 10 minutes, clean the residual phytic acid on the surface of the steel mesh with clean water.

[0019] (3) Brush the chitosan quaternary ammonium salt solution evenly on the surface of the phytic acid-modified steel wire mesh, and after standing for 10 minutes, clean the residual modification liquid on the surface of the steel wire mesh with clear water.

[0020] (4) Obtaining the modified metal mesh.

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PUM

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Abstract

The invention discloses a modification method of ironwork, and belongs to a metalwork processing technology. According to the method, various hydrophilic polymers are utilized to modify the ironwork, so that the ironwork is endowed with certain corrosion resistance, and the ironwork has extremely low crude oil adhesion. The technology is expected to be popularized in the petroleum field, so that ironwork used in the petroleum field has relatively low crude oil adhesion and corrosion resistance. The preparation process comprises the following steps: preparing different modification liquids, alternately modifying the to-be-modified ironwork by using the different modification liquids in a certain manner, and treating the modified ironwork to obtain the modified ironwork with excellent oil stain resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the field of metal product processing, and in particular relates to a method for modifying iron products used in the petroleum field. Background technique [0002] Iron products are widely used in petroleum fields, such as transportation and storage of petroleum, exploitation of petroleum, processing and refining of petroleum, etc. But petroleum usually contains corrosive substances, such as alkalis, acids, and salts, which usually cause corrosion to iron products. In addition, iron products have strong adhesion to crude oil. This characteristic of iron products will cause energy waste and increase the cost of petroleum products. For example, due to the strong adhesion of crude oil to iron products, the flow resistance of crude oil in iron pipes is relatively large, resulting in high transportation costs for crude oil. Aiming at the problems existing in iron products used in the petroleum field, the present invention proposes...

Claims

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Application Information

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IPC IPC(8): C23C22/50
CPCC23C22/50
Inventor 祝磊朱旭王冉刘锡鲁阎泽琛薛庆忠
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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