304L不锈钢在贫胺液换热器上的耐蚀性研究  

ON CORROSION RESISTANCE OF 304L STAINLESS STEEL IN HEAT EXCHANGER WITH LEAN AMINE SOLUTION

作　　者：田芳勇[1] 尹琦岭 朱军[1] 陈龙 Tian Fangyong;Yin Qiling;Zhu Jun;Chen Long(Research Institute of Petroleum Engineering Technology,SINOPEC Zhongyuan Oilfield Company,Puyang,Henan,457001;Puguang Branch of SINOPEC Zhongyuan Oilfield Company,Dazhou,Sichuan,636156)

机构地区：[1]中国石油化工股份有限公司中原油田石油工程技术研究院,河南濮阳457001 [2]中国石油化工股份有限公司中原油田普光分公司,四川达州636156

出　　处：《石油化工设备技术》2024年第5期32-35,40,I0002,I0003,共7页Petrochemical Equipment Technology

摘　　要：国内多数天然气净化装置在设计时,会选用碳钢材质的胺液换热器,但在实际运行中经常会遇到腐蚀损伤问题。因此,越来越多的企业开始应用不锈钢材质管束的换热器。通过试验研究了304L不锈钢在高含硫含氯胺液的碱性环境中的点蚀和应力腐蚀开裂敏感性,验证了该材质在某气田贫胺液换热器运行工况条件下的适用性及安全性,为合理控制高含硫酸性气田换热设备材料的使用成本提供了有效依据。Carbon steel amine heat exchangers are often used in the design of most domestic natural gas purification plants,yet corrosion damage is often encountered in actual operation.Therefore,more and more enterprises begin to adopt stainless steel tube bundle heat exchangers.The pitting corrosion and stress corrosion cracking(SCC)susceptibility of 304L stainless steel in alkaline environment with high sulfur and chloramine content were studied through experiments.The applicability and safety of the material are verified under the operating conditions of the heat exchanger with lean amine solution.This provides an effective basis for the rational control of the use-cost of heat exchange equipment materials in high sulfursour gasfields.

关 键 词：304L不锈钢 甲基二乙醇胺 贫胺液 换热器 点蚀 应力腐蚀 

分 类 号：TE986[石油与天然气工程—石油机械设备]