| 引用本文: | 江晶晶,任挺,张强,常宏岗,雷宇,刘煊,等. MDEA脱硫溶液腐蚀性能影响因素研究[J]. 石油与天然气化工, 2014, 43(5): 472-477. |
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| MDEA脱硫溶液腐蚀性能影响因素研究 |
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江晶晶1,2,3, 任挺4, 张强1,2,3, 常宏岗1,2,3, 雷宇4, 刘煊4, 宋孟秋4
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1.中国石油西南油气田公司天然气研究院;2.国家能源高含硫气藏开采研发中心;3.中国石油天然气集团公司高含硫气藏开采先导试验基地;4.中国石油西南油气田公司川中油气矿
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| 摘要: |
| 利用电化学方法在MDEA溶液介质中对20#、20R、304不锈钢、316L四种材质在不同工况下的腐蚀行为进行了室内模拟评价。结果 表明,碳钢在气相和液相中的腐蚀速率随温度升高而增加。在相同条件下,20#和20R在气相中的腐蚀速率高于液相。实验条件下,未通入H2S的胺液对各材质均无明显的电化学腐蚀,通入H2S至饱和的胺液在运行一段时间后碳钢的气相腐蚀速率增加。实验过程中,均未检测到不锈钢304及316L的电化学腐蚀倾向。 |
| 关键词: 天然气 MDEA溶液 腐蚀 热稳定盐(HSS) H2S |
| DOI：10.3969/j.issn.1007-3426.2014.05.002 |
| 分类号:TE986 |
| 基金项目: |
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| Influence of various factors on the corrosion of MDEA solutions |
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Jiang Jingjing1,2,3, Ren Ting4, Zhang Qiang1,2,3, Chang Honggang1,2,3, Lei Yu4, Liu Xuan4, Song Mengqiu4
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1.Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu 610213, Sichuan, China;2.National Energy R&D Center of High Sulfur Gas Exploitation， Chengdu 610000，Sichuan, China;3.High Sulfur Gas Exploitation Pilot Test Center， CNPC， Chengdu 610213， Sichuan， China;4.Central Sichuan Oil and Gas District, PetroChina Southwest Oil & Gasfield Company, Nanchong 637648, Sichuan, China
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| Abstract: |
| The corrosion behaviors of four metal materials in MDEA solution at different conditions were studied by electrochemical methods. The results showed that with increasing temperature, electrochemical corrosion rate increased dramatically. Moreover, the corrosion rate of 20# steel and 20R steel in vapor phase was greater than that in liquid phase. The corrosion rates of amine solution saturated with hydrogen sulphide increased after running for a period, while the solution without hydrogen sulphide showed almost no electrochemical corrosion to the materials. In addition, the tendency of electrochemical corrosion of stainless steel 304 and 316L was not detected during the experiment. |
| Key words: natural gas MDEA solution corrosion heat stable salts (HSS) hydrogen sulphide |
