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.
作者
张国栋
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)
出处
《乙烯工业》
CAS
2023年第3期57-60,I0002,共5页
Ethylene Industry
关键词
裂解炉
对流段炉管
腐蚀泄漏
稀释蒸汽
凝液
cracking furnace
convection tube
corrosion leakage
dilution steam
condensate
