Neutralization corrosion inhibitor and preparation method and application thereof

A corrosion inhibitor and corrosion inhibitor technology, applied in the field of neutralization corrosion inhibitor and its preparation, can solve the problems of insufficient protective effect, complicated operation process, troublesome post-processing, etc., and achieve good water solubility, simple production process, low cost effect

Active Publication Date: 2018-12-18
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, Chinese patent CN2015105819428 discloses "a preparation method of an oil-soluble corrosion inhibitor for suppressing recurrent corrosion at the top of a fractionation tower". It is more complicated and inconvenient to apply; c

Method used

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  • Neutralization corrosion inhibitor and preparation method and application thereof
  • Neutralization corrosion inhibitor and preparation method and application thereof
  • Neutralization corrosion inhibitor and preparation method and application thereof

Examples

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Embodiment 1

[0038] A neutralizing corrosion inhibitor, comprising raw material components and parts by weight: 20 parts of disodium cocoamphodiacetate, 10 parts of ethylenediamine, 5 parts of sodium cetylbenzenesulfonate, fatty alcohol 5 parts of polyoxyethylene ether, 2 parts of butynediol.

Embodiment 2

[0040] A neutralizing corrosion inhibitor, comprising raw material components and parts by weight: 50 parts of sodium lauroamphoacetate, 30 parts of thiophene, 5 parts of sodium dodecylsulfonate, and 5 parts of potassium iodide.

Embodiment 3

[0042] A neutralizing corrosion inhibitor, comprising raw material components and parts by weight: 30 parts of disodium lauroamphodiacetate, 5 parts of trimethylamine as an organic amine, 10 parts of ethylenediamine, 5 parts of thiourea, auxiliary The surfactant is 10 parts of cetyltrimethylammonium bromide, and the auxiliary agents are propynyl alcohol and potassium iodide, wherein, there are 2 parts of propynyl alcohol and 2 parts of potassium iodide.

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Abstract

The invention provides a neutralization corrosion inhibitor and a preparation method and application for the neutralization corrosion inhibitor and belongs to the technical field of chemical engineering. By means of the neutralization corrosion inhibitor and the preparation method and application for the neutralization corrosion inhibitor, the technical problems that existing water-soluble corrosion inhibitors are poor in corrosion inhibition effect and insufficient in protecting effect can be solved. The neutralization corrosion inhibitor comprises the raw material ingredients of, by weight,20-50 parts of an amphoteric imidazoline corrosion inhibitor, 10-30 parts of organic amine, 5-30 parts of cosurfactant and 2-5 parts of adjuvant. The corrosion inhibitor provided by the invention hasgood water solubility, has the advantages of being convenient to use and good in corrosion inhibition performance at the same time, is applied to corrosion prevention of petroleum processing equipment, can well adapt to high-temperature and high-acid working environments and has good protecting effect, and the corrosion inhibitor is simple in production process, low in cost and environmentally friendly and has quite good economic value.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a neutralizing corrosion inhibitor and a preparation method and application thereof. Background technique [0002] Due to the increasingly heavy quality of conventional crude oil, the trend of crude oil inferiority is becoming more and more obvious. In addition, a large amount of acid liquid is injected to enhance oil recovery in the process of oil field exploitation, so that the ratio of acid content, sulfur content, chlorine content and salt content in crude oil is getting higher and higher. As a result, the equipment in the oil processing process, such as atmospheric and vacuum, distillation equipment and pipelines, etc. are seriously corroded, and become an important safety hazard for the long-term operation of the equipment. [0003] In addition to hydrocarbons, crude oil also contains a small amount of organic and inorganic hybrids composed of sulfur, ...

Claims

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Application Information

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IPC IPC(8): C23F11/08
CPCC23F11/08
Inventor 王生杰夏永清刘方园张晓曹美文
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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