加氢装置循环氢系统腐蚀及防护现状研究
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摘要
对15家炼化企业加氢装置循环氢系统腐蚀现状进行了调研和总结,从典型案例出发,剖析了影响循环氢系统腐蚀的主要因素及其腐蚀机理,从工艺设计、工艺操作、设备防护、监检测4个方面探究了相应的防护策略,提出了以完善新氢氢源提纯设施、优化循环氢系统脱液等工艺防腐为主,材质升级、优化监检测为辅的具体防腐措施。
The corrosion situation of hydrogenation unit's recycling hydrogen system in 15 refineries was investigated and summarized. Based on typical cases,the main factors affecting the corrosion of recycling hydrogen system and the corrosion mechanism were analyzed. The corresponding protection strategies were explored from the aspects of process design,process operation,equipment protection and monitoring,and detailed countermeasures were put forward.The anti-corrosion measures includedoptimization of hydrogen source purification and dehydration of circulating hydrogen,supplemented by upgrading in material and monitoring.
The corrosion situation of hydrogenation unit's recycling hydrogen system in 15 refineries was investigated and summarized. Based on typical cases,the main factors affecting the corrosion of recycling hydrogen system and the corrosion mechanism were analyzed. The corresponding protection strategies were explored from the aspects of process design,process operation,equipment protection and monitoring,and detailed countermeasures were put forward.The anti-corrosion measures includedoptimization of hydrogen source purification and dehydration of circulating hydrogen,supplemented by upgrading in material and monitoring.
引文
[1]中国石化安全工程研究院.青岛炼化公司柴油加氢装置热高分气-混氢高压换热器(E-103)管束失效原因分析报告.2017.
[2]熊卫国,李方杰,王小平.柴油加氢精制装置热高分气混合氢换熱器腐蚀原因分析[J].石油化工腐蚀与防护,2018(35):2-3.
[3]李春树.高压换热器壳体焊缝开裂及腐蚀原因分析[C]//第二届石油化工腐蚀与安全学术交流会第三轮会议(青岛)论文集.青岛:2016(9):139-141.
[4]李涛,张中洋.加氢裂化装置高压换热器腐蚀开裂原因分析及对策[J].石油化工设备技术,2017,38(4):57-61.
[5]中国石化燕山分公司.燕山分公司185万吨年蜡油加氢装置高压换热器E-6103B壳体焊缝开裂泄漏处置报告.2016.
[6]中国石化安全工程研究院.青岛炼化公司混合氢换热器出口管线泄漏失效分析.2017.
[7]张晓明.加氢裂化装置铵盐结晶问题技术分析和处理措施[J].天津化工,2010,24(1):31-33.
[8]NACE Paper 10359.Prediction,Monitoring,and Control of Ammonium Chloride Corrosion in Refining Processes.(51300-10359-SG).
[9]NACE Paper 01540.Impact of Ammonium Chloride Salt Deposition on Refinery Operations.(51300-01540-SG).
[10]纪志愿.氢提纯工艺的选择及其工业应用[J].炼油设计,1998,28(6):46-50.
[11]王铁刚,徐效梅,姚淑香.循环氢夹带高分油的分离研究[J].当代化工,2010,39(3):237-238.
[12]于焕良,崔蕊,赵耀.加氢裂化换热器结垢腐蚀原因分析[J].石油化工高等学校学报,2017,30(3):15-19.
[13]王军,穆海涛,张岳峰.加氢装置腐蚀问题分析及对策[J].安全、健康和环境,2016,16(10):13-17.
[2]熊卫国,李方杰,王小平.柴油加氢精制装置热高分气混合氢换熱器腐蚀原因分析[J].石油化工腐蚀与防护,2018(35):2-3.
[3]李春树.高压换热器壳体焊缝开裂及腐蚀原因分析[C]//第二届石油化工腐蚀与安全学术交流会第三轮会议(青岛)论文集.青岛:2016(9):139-141.
[4]李涛,张中洋.加氢裂化装置高压换热器腐蚀开裂原因分析及对策[J].石油化工设备技术,2017,38(4):57-61.
[5]中国石化燕山分公司.燕山分公司185万吨年蜡油加氢装置高压换热器E-6103B壳体焊缝开裂泄漏处置报告.2016.
[6]中国石化安全工程研究院.青岛炼化公司混合氢换热器出口管线泄漏失效分析.2017.
[7]张晓明.加氢裂化装置铵盐结晶问题技术分析和处理措施[J].天津化工,2010,24(1):31-33.
[8]NACE Paper 10359.Prediction,Monitoring,and Control of Ammonium Chloride Corrosion in Refining Processes.(51300-10359-SG).
[9]NACE Paper 01540.Impact of Ammonium Chloride Salt Deposition on Refinery Operations.(51300-01540-SG).
[10]纪志愿.氢提纯工艺的选择及其工业应用[J].炼油设计,1998,28(6):46-50.
[11]王铁刚,徐效梅,姚淑香.循环氢夹带高分油的分离研究[J].当代化工,2010,39(3):237-238.
[12]于焕良,崔蕊,赵耀.加氢裂化换热器结垢腐蚀原因分析[J].石油化工高等学校学报,2017,30(3):15-19.
[13]王军,穆海涛,张岳峰.加氢装置腐蚀问题分析及对策[J].安全、健康和环境,2016,16(10):13-17.