| 含硫化氢喷气燃料中噻二唑衍生物的缓蚀性能 |
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| 引用本文： | 刘琳,潘晓娜,邢锦娟,张艳萍,李玉君.含硫化氢喷气燃料中噻二唑衍生物的缓蚀性能[J].锦州师范学院学报(自然科学版),2014(2):177-180,196. |
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| 作者姓名： | 刘琳 潘晓娜 邢锦娟 张艳萍 李玉君 |
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| 作者单位： | [1]渤海大学功能化合物的合成及应用辽宁省重点实验室,辽宁锦州121013 [2]中国石油四川石化有限责任公司,四川成都611930 |
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| 基金项目： | 国家自然基金资助项目（No：21176030）;辽宁省教育厅优秀人才支持计划（No：LR2011033）. |
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| 摘 要： | 研究了2，5-二巯基-1，3，4-噻二唑（ DMTD ）和5-甲基-2-巯基-1，3，4-噻二唑（ MMTD）在含H2 S喷气燃料中的缓蚀性能．银片腐蚀试验表明：对比未加剂喷气燃料，加入40 mg/L噻二唑衍生物后，银片的抗腐蚀性能显著增强．电化学测试表明：添加噻二唑衍生物明显降低了阴、阳极极化腐蚀电流密度，且MMTD的缓蚀效果优于DMTD．非接触式三维表面轮廓仪和扫描电子显微镜分别分析了银片在未加剂和加剂溶液中腐蚀表面，可明显的看出，噻二唑衍生物在银片表面形成了保护膜，有效阻止H2 S与银片的接触，从而减缓腐蚀．
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| 关 键 词： | DMTD MMTD 银片腐蚀 缓蚀 |
Inhibiting corrosion of thiadiazole derivative in jet fuel containing hydrogen sulfide |
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| LIU Lin,PAN Xiao-na,XING Jin-juan,ZHANG Yan-ping,LI Yu-jun.Inhibiting corrosion of thiadiazole derivative in jet fuel containing hydrogen sulfide[J].Journal of Jinzhou Normal College (Natural Science Edition),2014(2):177-180,196. |
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| Authors: | LIU Lin PAN Xiao-na XING Jin-juan ZHANG Yan-ping LI Yu-jun |
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| Institution: | 1. Key Laboratory for Synthesis and Application of the Functional Compounds, Bohai University, Jinzhou 121013, China; 2. Sichuan Petrochemical Co. , China National Petroleum Corporation, Chengdu 611930,China) |
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| Abstract: | In this work, corrosion inhibition of thiadiazole derivatives , namely 2,5-dimercapo-1,3,4 -thiadiazole （DMTD） and 5-methyl-2-mercapto-1,3,4 -thiadiazole （MMTD） in jet fuel containing H2S was studied.Corrosion of silver test results indicated that：adding 40 mg/L thiadia20le derivatires, the inhibition of silver significantly enhanced .The electrochemical measurement showed that： adding inhibiters significantly decreased the anodic and cathodic polarization corrosion current density , and efficiency of MMTD is better than DMTD.3D profiler and scanning electron microscopy （SEM） carried out to analyze the silver strip after corro-sion in without and with addictives .The results can be clearly shown that DMTD and MMTD molecules are strongly adsorbed onto silver strip surface .These compounds decreased silver strip corrosion . |
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| Keywords: | DMTD MMTD Corrosion of silver strip Inhibition |
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