Corrosion Inhibition Mechanism of Ultra-High-Temperature Acidizing Corrosion Inhibitor for 2205 Duplex Stainless Steel
The acidizing corrosion inhibitors reported so far have a poor effect on duplex stainless steel in high-temperature and high-concentration acid systems and cannot effectively inhibit the occurrence of selective corrosion. In this paper, a new acidizing corrosion inhibitor was designed, which was mai...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-03-01
|
| Series: | Materials |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1944/16/6/2358 |
| _version_ | 1797610475013275648 |
|---|---|
| author | Danping Li Wenwen Song Junping Zhang Chengxian Yin Mifeng Zhao Hongzhou Chao Juantao Zhang Zigang Lei Lei Fan Wan Liu Xiaolong Li |
| author_facet | Danping Li Wenwen Song Junping Zhang Chengxian Yin Mifeng Zhao Hongzhou Chao Juantao Zhang Zigang Lei Lei Fan Wan Liu Xiaolong Li |
| author_sort | Danping Li |
| collection | DOAJ |
| description | The acidizing corrosion inhibitors reported so far have a poor effect on duplex stainless steel in high-temperature and high-concentration acid systems and cannot effectively inhibit the occurrence of selective corrosion. In this paper, a new acidizing corrosion inhibitor was designed, which was mainly composed of Mannich base and antimony salt. The inorganic substance in the corrosion inhibitor had good stability at high temperatures and could quickly form a complex with the metal matrix to enhance the binding ability. The organic substance can make up for the non-dense part of the inorganic film. The properties of developed corrosion inhibitors were analyzed by quantum chemical calculation, molecular dynamics simulation, and scanning electron microscopy. The results showed that a double-layer membrane structure could be constructed after adding the corrosion inhibitor, which could play a good role in blocking the diffusion of acid solution at high-temperature. The uniform corrosion rate of 2205 duplex stainless steel after adding acidizing corrosion inhibitor immersion in a simulated service condition (9 wt.% HCl + 1.5 wt.% HF + 3 wt.% CH<sub>3</sub>COOH + 4~6 wt.%) at 140 °C, 160 °C and 180 °C for a 4 h test is 6.9350 g·m<sup>−2</sup>·h<sup>−1</sup>, 6.3899 g·m<sup>−2</sup>·h<sup>−1</sup> and 12.1881 g·m<sup>−2</sup>·h<sup>−1</sup>, respectively, which shows excellent corrosion inhibition effect and is far lower than that of the commonly accepted 81 g·m<sup>−2</sup>·h<sup>−1</sup> and no selective corrosion could be detected. |
| first_indexed | 2024-03-11T06:15:45Z |
| format | Article |
| id | doaj.art-e16cb2df4e534950836f5be9b4d5ab24 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T06:15:45Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-e16cb2df4e534950836f5be9b4d5ab242023-11-17T12:21:09ZengMDPI AGMaterials1996-19442023-03-01166235810.3390/ma16062358Corrosion Inhibition Mechanism of Ultra-High-Temperature Acidizing Corrosion Inhibitor for 2205 Duplex Stainless SteelDanping Li0Wenwen Song1Junping Zhang2Chengxian Yin3Mifeng Zhao4Hongzhou Chao5Juantao Zhang6Zigang Lei7Lei Fan8Wan Liu9Xiaolong Li10Tubular Goods Research Institute of CNPC, Xi’an 710077, ChinaPetroChina Tarim Oilfield Company, Korla 841000, ChinaSchool of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710082, ChinaTubular Goods Research Institute of CNPC, Xi’an 710077, ChinaPetroChina Tarim Oilfield Company, Korla 841000, ChinaPetroChina Tarim Oilfield Company, Korla 841000, ChinaTubular Goods Research Institute of CNPC, Xi’an 710077, ChinaTubular Goods Research Institute of CNPC, Xi’an 710077, ChinaTubular Goods Research Institute of CNPC, Xi’an 710077, ChinaTubular Goods Research Institute of CNPC, Xi’an 710077, ChinaTubular Goods Research Institute of CNPC, Xi’an 710077, ChinaThe acidizing corrosion inhibitors reported so far have a poor effect on duplex stainless steel in high-temperature and high-concentration acid systems and cannot effectively inhibit the occurrence of selective corrosion. In this paper, a new acidizing corrosion inhibitor was designed, which was mainly composed of Mannich base and antimony salt. The inorganic substance in the corrosion inhibitor had good stability at high temperatures and could quickly form a complex with the metal matrix to enhance the binding ability. The organic substance can make up for the non-dense part of the inorganic film. The properties of developed corrosion inhibitors were analyzed by quantum chemical calculation, molecular dynamics simulation, and scanning electron microscopy. The results showed that a double-layer membrane structure could be constructed after adding the corrosion inhibitor, which could play a good role in blocking the diffusion of acid solution at high-temperature. The uniform corrosion rate of 2205 duplex stainless steel after adding acidizing corrosion inhibitor immersion in a simulated service condition (9 wt.% HCl + 1.5 wt.% HF + 3 wt.% CH<sub>3</sub>COOH + 4~6 wt.%) at 140 °C, 160 °C and 180 °C for a 4 h test is 6.9350 g·m<sup>−2</sup>·h<sup>−1</sup>, 6.3899 g·m<sup>−2</sup>·h<sup>−1</sup> and 12.1881 g·m<sup>−2</sup>·h<sup>−1</sup>, respectively, which shows excellent corrosion inhibition effect and is far lower than that of the commonly accepted 81 g·m<sup>−2</sup>·h<sup>−1</sup> and no selective corrosion could be detected.https://www.mdpi.com/1996-1944/16/6/2358duplex stainless steelselective corrosionhigh-temperature acidificationcorrosion inhibitormolecular dynamics simulation |
| spellingShingle | Danping Li Wenwen Song Junping Zhang Chengxian Yin Mifeng Zhao Hongzhou Chao Juantao Zhang Zigang Lei Lei Fan Wan Liu Xiaolong Li Corrosion Inhibition Mechanism of Ultra-High-Temperature Acidizing Corrosion Inhibitor for 2205 Duplex Stainless Steel Materials duplex stainless steel selective corrosion high-temperature acidification corrosion inhibitor molecular dynamics simulation |
| title | Corrosion Inhibition Mechanism of Ultra-High-Temperature Acidizing Corrosion Inhibitor for 2205 Duplex Stainless Steel |
| title_full | Corrosion Inhibition Mechanism of Ultra-High-Temperature Acidizing Corrosion Inhibitor for 2205 Duplex Stainless Steel |
| title_fullStr | Corrosion Inhibition Mechanism of Ultra-High-Temperature Acidizing Corrosion Inhibitor for 2205 Duplex Stainless Steel |
| title_full_unstemmed | Corrosion Inhibition Mechanism of Ultra-High-Temperature Acidizing Corrosion Inhibitor for 2205 Duplex Stainless Steel |
| title_short | Corrosion Inhibition Mechanism of Ultra-High-Temperature Acidizing Corrosion Inhibitor for 2205 Duplex Stainless Steel |
| title_sort | corrosion inhibition mechanism of ultra high temperature acidizing corrosion inhibitor for 2205 duplex stainless steel |
| topic | duplex stainless steel selective corrosion high-temperature acidification corrosion inhibitor molecular dynamics simulation |
| url | https://www.mdpi.com/1996-1944/16/6/2358 |
| work_keys_str_mv | AT danpingli corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT wenwensong corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT junpingzhang corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT chengxianyin corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT mifengzhao corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT hongzhouchao corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT juantaozhang corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT ziganglei corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT leifan corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT wanliu corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel AT xiaolongli corrosioninhibitionmechanismofultrahightemperatureacidizingcorrosioninhibitorfor2205duplexstainlesssteel |