MDEA脱碳系统再生塔底重沸器平稳运行方法和措施  

Methods and Measures for the Stable Operation of the Regenerator Reboiler of the MDEA Decarbonization System

作　　者：成应杰 CHENG Yingjie(Shenzhen Branch of CNOOC(China)Co.,Ltd.,Shenzhen,Guangdong Province,518054 China)

机构地区：[1]中海石油(中国)有限公司深圳分公司,广东深圳518054

出　　处：《科技资讯》2021年第32期68-70,共3页Science & Technology Information

摘　　要：MDEA脱碳系统再生塔底重沸器为管壳式换热器,高压蒸汽经过管程给壳程胺液加热,放热冷凝后流入凝结水分离器。由于设计缺陷,重沸器与凝结水分离器高度差不足,凝结水不能顺畅流动,需手动控制进出口压差来控制凝结水流动,造成蒸汽压力和流量波动较大,无法稳定加热MDEA溶液,影响脱碳系统运行。为了解决上述问题,需要优化操作流程,并对工艺流程进行适当改造,确保蒸汽压力、流量稳定,从而使脱碳系统能够平稳运行。The regenerator reboiler of the MDEA decarburization system is a shell-and-tube heat exchanger.The high-pressure steam passes through the tube side to heat the shell side amine liquid,and flows into the condensate separator after exothermic condensation.Due to design defects,the height difference between the reboiler and the condensate separator is insufficient,and the condensate cannot flow smoothly.It is needed to manually control the inlet and outlet pressure difference to control the flow of condensed water,which causes large fluctuations in steam pressure and flow rate,and cannot stably heat the MDEA solution,which affects the operation of the decarburiza‐tion system.In order to solve the above-mentioned problems,it is necessary to optimize the operation process and make appropriate modifications to the process flow to ensure stable steam pressure and flow,so that the decarburi‐zation system can operate smoothly.

关 键 词：MDEA 脱碳系统 蒸汽 波动 稳定 

分 类 号：U664.141[交通运输工程—船舶及航道工程]