| WANG Xintong,YANG Jiang,CHEN Xu.Research Progress on Carbon Dioxide Corrosion Inhibitor[J],53(11):117-126 |
| Research Progress on Carbon Dioxide Corrosion Inhibitor |
| Received:November 11, 2022 Revised:January 13, 2023 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2024.11.010 |
| KeyWord:carbon dioxide corrosion corrosion inhibitor surfactants synergistic effect |
| Author | Institution |
| WANG Xintong |
School of Petrochemical Engineering,Liaoning Fushun , China ;College of Chemistry and Chemical Engineering, China University of Petroleum East China, Shandong Qingdao , China |
| YANG Jiang |
School of Petrochemical Engineering,Liaoning Fushun , China |
| CHEN Xu |
College of Petroleum and Natural Gas Engineering, Liaoning Petrochemical University, Liaoning Fushun , China |
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| Abstract: |
| Carbon capture, utilization and storage (CCUS) technology has been widely applied in order to effectively deal with global warming and achieve the goal of carbon neutrality. CCUS processes, oil and gas development, gathering and transportation are always faced with serious carbon dioxide (CO2) corrosion problems. CO2 corrosion will bring serious economic losses, environmental pollution and personal safety problems. Compared with corrosion resistance alloys, addition of corrosion inhibitors to carbon steel is one of the most flexible, economical and easy to operate anti-corrosion methods to cope with CO2 corrosion. In this paper, the research progress of different types of carbon dioxide corrosion inhibitors was reviewed. CO2 corrosion inhibitors were classified according to organic and inorganic compounds. At present, organic corrosion inhibitors were widely used and mature in research. Firstly, the research progress of organic corrosion inhibitors containing heteroatoms such as N, O, S and P, organic corrosion inhibitors containing heterocyclic rings and amphiphilic surfactants were discussed. The advantages, disadvantages and applicability of these organic corrosion inhibitors were reviewed, and the current state of art in research of these inhibitors was discussed. Synthesis of organic compounds containing N, O, S, P heteroatoms and unsaturated bonds such as aromatic rings was the target and direction of the synthesis of CO2 organic corrosion inhibitors. Most efficient CO2 organic corrosion inhibitors were essentially surfactants. The amphiphilicity of surfactants was an advantage as corrosion inhibitors. However, these classical organic corrosion inhibitors were often toxic or useful in high doses. Green, non-toxic, environmental protection was also one of the indicators to measure the quality of corrosion inhibitors. Recently, some emerging inorganic materials began to be used as CO2 corrosion inhibitors. Then, some green inhibitors, such as new inorganic nanomaterial corrosion inhibitors (graphene, carbon quantum dots, ionic liquids and metal complexes), as well as plant extracts, amino acids, natural oils and biopolymers were discussed. Inorganic and nano materials were gradually used as CO2 corrosion inhibitors, which was a new direction of corrosion inhibitor research. The effect of plant extract as CO2 corrosion inhibitor was not good and still controversial. The existing single corrosion inhibitor often could not reach the ideal effect. Therefore, it was particularly important to study the structure-activity relationship of CO2 corrosion inhibitors and the synergistic compounding of CO2 corrosion inhibitors. The focus of the research on the structure-function relationship, synergistic effect of corrosion inhibitors and its existing problems were reviewed. A variety of polar groups provided more possibilities for the future study of the structure-activity relationship of CO2 corrosion inhibitors. The structure-activity relationship of a corrosion inhibitor or even a class of corrosion inhibitors needed further study. It was far from enough to only focus on the ratio and effectiveness of a single formula and the mechanism of macroscopic adsorption film level. The addition of quantum mechanical calculation and molecular dynamics simulation could better explore the mechanism of corrosion inhibitor collaborative adsorption and corrosion inhibition from the molecular, atomic or even electronic level. Finally, according to the characteristics and research status of these different corrosion inhibitors, the future research direction of CO2 corrosion inhibitors was summarized and proposed. |
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