稀土耐热钢在乙烯裂解炉辐射段炉管上的应用研究  

RESEARCH ON THE APPLICATION OF RARE EARTH HEAT-RESISTANT STEEL TO THE RADIATION TUBE IN ETHYLENE CRACKING FURNACE

作　　者：卫达[1] 

机构地区：[1]中国石化扬子石油化工股份有限公司烯烃厂,江苏南京210048

出　　处：《石油化工设备技术》2012年第3期32-34,2,共3页Petrochemical Equipment Technology

摘　　要：研究了稀土元素在钢中的作用机理及对耐热钢性能的影响。在耐热钢中添加适量的高镧和富铈稀土元素可以显著改善钢的高温力学性能、抗氧化性能、抗高温腐蚀、抗渗碳及抗结焦性能。工业化试验结果表明,乙烯裂解炉辐射段应用稀土耐热钢炉管后,裂解炉运转周期得到大幅延长。This paper researches on the mechanism of rare earth elements in steel and their effect on the performance of heat-resisting steel.Adding right amount of lanthanum and cerium-rich rare earth elements to the heat-resistant steel can significantly improve the steel in high temperature mechanical properties,oxidation resistance properties,and high-temperature corrosion resistance to carburizing and anti-coking performance.And the industrial test results indicate that the operation cycle of the ethylene cracking furnace can be greatly extended by applying rare earth heat-resisting steel to the radiation tube in ethylene cracking furnace.

关 键 词：稀土 耐热钢 裂解炉 辐射段炉管 

分 类 号：TQ221.211[化学工程—有机化工]