芳烃抽提大检修换热器腐蚀及原因分析

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英文篇名：Corrosion of Aromatics Pumping Heat Exchanger and Its Cause Analysis 作者：雍万军 ; 黄书勤 英文作者：Yong Wanjun;Huang Shuqin;Project Department, Sinochem Quanzhou Petrochemical Co., Ltd.;Equipment Department, Sinochem Quanzhou Petrochemical Co., Ltd.; 关键词：换热器 ; 大检修 ; 腐蚀 英文关键词：heat exchanger;;overhaul;;corrode 中文刊名：GDHG 英文刊名：Guangdong Chemical Industry 机构：中化泉州石化芳烃项目部;中化泉州石化设备部; 出版日期：2018-09-15 出版单位：广东化工 年：2018 期：v.45;No.379 语种：中文; 页：GDHG201817077 页数：3 CN：17 ISSN：44-1238/TQ 分类号：168+173-174

摘要

某石化85万吨/年芳烃抽提大检修期间发现多台换热器有不同程度腐蚀,分析原因包括原料中带有小剂量氯以及环丁砜降解腐蚀等,针对上述问题提出严格控制蒸汽温度、系统氧含量、溶剂水含量,增加阴离子交换树脂法脱除系统中酸性物质,并在可能情况下更换耐腐蚀材料。
        A number of heat exchangers were found to be corroded in varying degrees during the overhaul of 850000 tons of aromatic hydrocarbons in Quanzhou Petrochemical Company. The reasons for the analysis include low dose chlorine in raw materials and degradation corrosion of sulfolane. Proposes the strict control vapor temperature, the system oxygen content, the solvent water content in view of the above question. Adding Anion Exchange Resin to remove acidic substances from the system. In the possible situation to replace the anti-corrosive material.

引文

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