催化裂化再生设备应力腐蚀开裂规律的研究  

Research on Stress Corrosion Cracking of Regenerator Equipment of FCCU

作　　者：刘有成[1] 陈华[2] 柳云骐[3] 

机构地区：[1]北京三聚环保新材料有限公司,北京102308 [2]北京科技大学,北京100083 [3]石油大学(华东),山东东营257062

出　　处：《石油化工腐蚀与防护》2004年第1期12-15,19,共5页Corrosion & Protection In Petrochemical Industry

摘　　要：通过对催化裂化再生设备应力腐蚀开裂问题的分析,研究了容器用钢在硝酸盐溶液中应力腐蚀的 规律及特征,建立了NOx露点腐蚀热力学分析模型,明确了含有CO和CO2的NOx-SOx-H2O体系的露点温度决 定因素,为开发和使用转硫、脱氮、助燃三效催化剂解决再生设备开裂问题提供理论依据。The law of stress corrosion of steel for vessels in nitric acid is studied through the analysis of stress corrosion cracking of regenerator equipment of a FCCU. The thermal dynamic model is established for the NO, dew point corrosion and the decisive factor of dew point temperature of NOx-SOx-H2O system containing CO and CO2 is made clear, which provides a theoretical basis for the development and application of tri-functional catalyst of sulfur transfer, denitrification and combustion promotion to solve the problem of equipment cracking of FCC regenerator.

关 键 词：催化裂化装置 再生设备 应力腐蚀开裂 硝酸盐溶液 转硫 脱氮 助燃 催化剂 

分 类 号：TE986[石油与天然气工程—石油机械设备]