脱硫装置MDEA再生塔腐蚀分析与防腐措施  

Analysis and protection for MDEA regeneration tower corrosion in desulfurization unit

作　　者：吕江[1] 罗慧娟[1] 乔玉龙[1] 姚亮[2] 张强[1] 虎蕾[1] 吕海霞[1] 王强军[1] 

机构地区：[1]中国石油长庆油田分公司第一采气厂,陕西靖边718500 [2]中国石油长庆油田分公司第三采气厂,内蒙古乌审旗017300

出　　处：《石油化工应用》2009年第9期58-60,共3页Petrochemical Industry Application

摘　　要：根据长庆油田天然气脱硫装置MDEA再生塔目前腐蚀现状,分析了CO_2、H_2S、CO_2/H_2S/H_2O及温度对腐蚀的影响。结果表明,再生塔腐蚀是以CO_2局部腐蚀为主。针对主要腐蚀因素,提出了气体膜技术分离CO_2,可将原料气中CO_2从6.9%降至3%,减弱了设备腐蚀程度。According to the corrosion current status for MDEA regeneration tower of natural gas desulfurization unit in the changqing oilfield, the corrosion factors CO2,H2S,CO2/H2S/ H2O and temperature are analyzed. The results showed that the regeneration tower was corroded by CO2 The main corrosion factors for the proposed membrane separating technology and applied it to separate CO2 from natural gas, reduced CO2 from 6,9 % to 3 %, weakened degree of equipment corrosion.

关 键 词：脱硫装置 再生塔 腐蚀 防腐措施 

分 类 号：TE986[石油与天然气工程—石油机械设备]