| 天然气净化厂液硫储罐腐蚀原因分析与防护措施 |
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| 引用本文： | 黄刚华,雷宇,彭银华.天然气净化厂液硫储罐腐蚀原因分析与防护措施[J].石油与天然气化工,2019,48(2):1-7. |
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| 作者姓名： | 黄刚华 雷宇 彭银华 |
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| 作者单位： | 中国石油西南油气田公司天然气研究院;国家能源高含硫气藏开采研发中心;中国石油天然气集团公司高含硫气藏开采先导试验基地;中国石油西南油气田公司川中油气矿龙岗天然气净化厂 |
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| 基金项目： | 国家科技重大项目“四川盆地大型碳酸盐岩气田开发示范工程”(2016ZX05052) |
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| 摘 要： | 以四川某天然气净化厂液硫储罐为例,考察了液硫储罐出现腐蚀的原因。主要采用挂片法,并结合EDS分析,考察了H_2S、O_2、H_2O等因素对腐蚀的影响。同时,考察了热喷铝、喷锌的防腐蚀效果。结果表明,在无液态水的条件下,液硫对Q235腐蚀轻微,H_2S溶解在液膜内以及硫磺沉积是导致储罐顶部腐蚀的主要原因,加强顶部保温是控制腐蚀的有效方法,采用金属喷涂技术值得进一步研究。
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| 关 键 词： | 腐蚀 液硫储罐 H2S 热喷涂 硫磺沉积 |
| 收稿时间： | 2018/9/21 0:00:00 |
Corrosion cause analysis and protective measures of liquid sulfur storage tank in natural gas purification plant |
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| Huang Ganghu,Lei Yu and Peng Yinhua.Corrosion cause analysis and protective measures of liquid sulfur storage tank in natural gas purification plant[J].Chemical Engineering of Oil and Gas,2019,48(2):1-7. |
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| Authors: | Huang Ganghu Lei Yu and Peng Yinhua |
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| Affiliation: | Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China;National Energy R&D Center of High Sulfur Gas Exploitation, Chengdu, Sichuan, China;High Sulfur Gas Exploitation Pilot Test Center, CNPC, Chengdu, Sichuan, China,Longgang Natural Gas Purification Plant, Central Sichuan Oil and Gas District, PetroChina Southwest Oil & Gasfield Company, Suining, Sichuan, China and Longgang Natural Gas Purification Plant, Central Sichuan Oil and Gas District, PetroChina Southwest Oil & Gasfield Company, Suining, Sichuan, China |
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| Abstract: | Taking a natural gas purification plant in Sichuan as an example, the corrosion cause of the liquid sulfur storage tank was studied. The influence of H2S,O2,H2O and other factors on corrosion was investigated by weight loss method and EDS analysis. The anticorrosion effect of hot spraying aluminum and zinc were studied simultaneously. The results showed that the corrosion of liquid sulfur to Q235 was slight without water. The major reasons for corrosion of top were H2S dissolved in liquid membrane and sulfur deposition. The corrosion could be controlled by strengthening the top insulation, and metal spraying technology deserved further research. |
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| Keywords: | corrosion liquid sulfur tank H2S thermal spraying sulfur deposition |
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