独山子石化开建1200kt/a二期乙烯项目  

CAUSE ANALYSIS OF CORROSION LEAKAGE OF CONVECTION TUBES IN ETHYLENE CRACKING FURNACE

作　　者：张国栋[1] 陈起 白涛涛 王明明 丁少辉 Zhang Guodong;Chen Qi;Bai Taotao;Wang Mingming;Ding Shaohui(PetroChina Dushanzi Petrochemical Company,Dushanzi,Xinjiang,P.C.833699;PetroChina Planning&Engineering Institute,Beijing,P.C.100083)

机构地区：[1]中国石油天然气股份有限公司独山子石化分公司,新疆独山子833699 [2]中国石油天然气股份有限公司规划总院,北京100083

出　　处：《乙烯工业》2023年第3期57-60,I0002,共5页Ethylene Industry

摘　　要：阐述了乙烯装置裂解炉对流段炉管的腐蚀情况,对腐蚀泄漏位置的样貌、炉管材质、金相、微观结构和垢层等方面进行了检测。基于测试结果对腐蚀原因进行了分析,判断造成腐蚀泄漏的因素是对流段的凝液以及石脑油中的硫元素,并提出了工艺改造的方案和优化操作。The corrosion of convection tubes in ethylene cracking furnace is introduced in this paper.The appearance of corrosion leakage location,furnace tube material,metallography,microstructure and scale layer are inspected.The causes of corrosion are analyzed based on the inspection results.It is concluded that the corrosion leakage is resulted by the condensate in convection section and the sulfur element in naphtha,and some measures for operation optimization and process modification are proposed.

关 键 词：裂解炉 对流段炉管 腐蚀泄漏 稀释蒸汽 凝液 

分 类 号：F426.72[经济管理—产业经济]