400万吨/年煤制油费托合成循环气压缩机管线腐蚀分析  

Corrosion Analysis of the Pipeline of Recirculating Gas Compressor in the 4 Million Tons/Year Coal-to-oil Fischer-Tropsch Synthesis Plant

作　　者：李顺平 李正稳 门卓武 Li Shunping;Li Zhengwen;Men Zhuowu(Coal to Oil Branch of Ningxia Coal Industry Co.,Ltd.,National Energy Group,Ningxia,750409;National Institute of Clean-and-Low-Carbon Energy,Beijing,102209)

机构地区：[1]国家能源集团宁夏煤业有限公司煤制油分公司,宁夏750409 [2]北京低碳清洁能源研究院,北京102209

出　　处：《当代化工研究》2025年第2期80-82,共3页Modern Chemical Research

摘　　要：费托合成反应是煤炭转化为液体燃料的核心工艺,但其反应器在长期运行中,循环气压缩机管线面临腐蚀问题,影响煤制油装置的运行安全。以宁夏煤业有限公司400万吨/年煤制油装置为对象,发现管线腐蚀主要源于湿环境下的CO_(2)腐蚀,且有机酸产物、流速与温度波动加剧了腐蚀。通过调整操作参数、提高水分离效率及改进管线材质等措施,有效改善管线腐蚀状况。为煤制油装置的防腐提供了技术支持,对相关装置的防腐具有指导意义。The Fischer-Tropsch synthesis reaction is the core process for converting coal into liquid fuels,but the circulation gas compressor pipeline of reactor face corrosion issues during operation,affecting the safety of the coal-to-liquid plant.This study focuses on the 4 million tons/year coal-to-liquid plant of Ningxia Coal Industry Co.,Ltd.It was found that the pipeline corrosion is primarily caused by CO_(2) corrosion in a wet environ-ment,with the presence of organic acid by-products,flow velocity and temperature fluctuations further exacerbating the corrosion.By optimizing op-erational parameters,improving water separation efficiency and changing pipeline material,the corrosion of the pipelines was effectively mitigated.This research provides technical support for corrosion prevention in coal-to-liquid plants and also offers valuable guidance for similar facilities.

关 键 词：费托合成 循环气压缩机工艺管线 腐蚀原因分析 防腐措施 

分 类 号：TQ050[化学工程]