A gas-liquid double-effect supramolecular corrosion inhibitor for protecting condensate pipeline steel and its preparation method

A gas-liquid double-effect, condensate pipe technology, applied in the field of metal corrosion and protection, can solve the problems that supramolecular chemistry has not been fully reflected in the development and application of corrosion inhibitors, and achieve the solution of gas-liquid two-phase corrosion problems, high efficiency Welding grooves and gaps, effects of protecting welding grooves and gaps
CN107059015BActive Publication Date: 2019-11-19BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY
Publication Date
2019-11-19

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Abstract

The invention relates to a gas-liquid double-effect supramolecular corrosion inhibitor used for protecting condensate water pipe line steel and a preparation method thereof. The preparation method comprises the following steps: 30-70 parts by mass of cyclodextrin and derivatives form a network-like body under the effect of 10-20 parts by mass of an inductive bridging agent, and the network-like body is then subjected to noncovalent interaction with 20-40 parts by mass of oily corrosion inhibition components to form a supramolecular system with a subject and object structure. According to the gas-liquid double-effect supramolecular corrosion inhibitor used for protecting condensate water pipe line steel and the preparation method thereof, the preparation method of the supramolecular corrosion inhibitor is simple and convenient, the reaction condition is mild, the parts, being exposed to gas phase and immersed in liquid phase, of the condensate water pipe line steel are effectively protected.
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Description

technical field

[0001] The invention belongs to the field of metal corrosion and protection, in particular to a gas-liquid double-effect supramolecular corrosion inhibitor for protecting condensed water pipeline steel and a preparation method thereof. Background technique

[0002] Condensed water is demineralized water formed by condensation of steam in the heat production process. In order to save water resources and avoid thermal pollution of the environment, most of the steam condensate water is often recycled as boiler make-up water in the production line. However, the theoretically pure steam condensate has poor anti-pollution ability: outside O 2 , CO 2 Factors such as dissolution and decomposition of carbonate or bicarbonate entrained by the steam generation source will make the condensed water weakly acidic. Acidic steam condensate will cause electrochemical corrosion and high temperature oxygen corrosion to the pipeline, and the corrosion products of pipeline ste...

Claims

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