炼油装置中H_2S腐蚀产物自然氧化实验研究  

EXPERIMENTAL STUDY ON THE SPONTANEOUS OXIDATION OF CORROSION PRODUCTS IN REFINING UNITS

作　　者：王志荣[1] 钱海林[1] 陆鹏宇[1] 蒋军成[1] 

机构地区：[1]南京工业大学城市建设与安全工程学院,南京210009

出　　处：《石油炼制与化工》2011年第11期85-88,共4页Petroleum Processing and Petrochemicals

基　　金：国家科技部科技支撑计划项目子课题(2007BAK22B04);国家自然科学基金项目(50774048);江苏省高校"青蓝工程"优秀青年骨干教师资助计划

摘　　要：采集炼油装置中的腐蚀产物样品在自然条件下进行氧化实验,考察其氧化自燃性。结果表明:单质硫的存在对腐蚀产物的自燃起到了促进作用,有可能威胁到炼油企业的安全生产,硫磺回收装置应是重点安全防护对象;水的吸热降温和隔氧窒息能抑制腐蚀产物的自燃,但FeS含量高时仍能发生自燃;一般装置中,罐顶腐蚀产物比罐底腐蚀产物的氧化危险性大。Corrosion products from various locations of refining units were collected and natural oxidation experiments were arranged to study the oxidation and spontaneous combustion behaviors of these corrosion products. Results show that the existence of elemental sulfur could promote the oxidation of corrosion products and even speeds up the process of spontaneous combustion, which threatens the refinery security, thus sulfur recovery units should be the main object to be concerned. Water could inhibit the spontaneous combustion of corrosion products by absorbing heat, reducing temperature and isolating oxygen in some ways. But if the content of ferrous sulfide in the corrosion products is high enough, spontaneous combustion may happen as well. Corrosion products collected from the top of refining units are more dangerous than those from the bottom since containing less water.

关 键 词：炼油装置 腐蚀产物 自然氧化 自燃 

分 类 号：TG174[金属学及工艺—金属表面处理]