EO/EG装置腐蚀机理分析及工艺防腐对策  

ANALYSIS ON CORROSION MECHANISM AND PROTECTIVE MEASURES OF EO/EG PLANTS

作　　者：周召方 Zhou Zhaofang(SINOPEC-Sk(Wuhan)Petroche-mical Company Limited,Wuhan,Hubei,430082)

机构地区：[1]中韩(武汉)石油化工有限公司,湖北武汉430082

出　　处：《石油化工设备技术》2024年第5期28-31,I0002,共5页Petrochemical Equipment Technology

摘　　要：环氧乙烷(ED)是一种仅次于聚乙烯和聚氯乙烯的重要有机合成原料,主要用于生产乙二醇(EG)。乙二醇是生产聚酯产品和抗冻剂的主要原料,EO/EG通常联合生产,是乙烯产业重要的下游衍生物,其生产装置的稳定运行对全厂乙烯平衡具有重要意义。装置的运行经验表明,EO/EG装置普遍存在系统性的腐蚀问题。文章主要介绍了从装置生产运行、催化剂使用、结构调整、现场腐蚀失效案例、腐蚀管理、RBI风险分析、腐蚀监检测等多个方面对EO/EG装置开展的全方位、系统性调查的情况,力求摸清各种因素对EO/EG装置腐蚀的影响以及各企业有针对性的生产管理经验,以便为下一步进行EO/EG装置腐蚀控制整体解决方案研究提供技术支撑。Ethylene oxide(EO)is an important raw material for organic synthesis,which is second only to polyethylene and polyvinyl chloride.It is mainly used to produce ethylene glycol(EG),which is the main raw material for producing polyester products and antifreeze.EO/EG is usually co-produced and is an important downstream derivative of ethylene industry.The stable operation of its production equipment is of great significance to the ethylene balance of the whole refinery.The operation experience indicates that EO/EG plants have systematic and universal corrosion problem.In order to solve the corrosion problem,the EO/EG plants were systematically investigated from the aspects of production operation,catalyst use,structural adjustment,failure cases of on-site corrosion,corrosion management,RBI risk analysis,corrosion monitoring and detection,etc.,to find out the impact of various factors on the corrosion of EO/EG plants and the production management experience of enterprises,and to provide technical support for the future research on the overall solution to corrosion control of EO/EG plants.

关 键 词：环氧乙烷 腐蚀 防护对策 

分 类 号：TQ050.9[化学工程]