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南海某平台乙二醇回收装置(Mono-Ethylene Glycol Recovery Unit简称为MRU)用于接受来自海底管线的富乙二醇溶液,经过预处理、脱水再生、脱盐等阶段后可满足回注要求。MRU一般设计规模较大,入口流量的变化范围也较大,MRU的设计还没有完全实现国产化,在操作过程中也时常发生如换热器换热效率达不到等问题。本文介绍的是MRU系统在气田投产初期,再生阶段重沸器不能正常升温时等问题分析及解决办法,从而提出脱水再生单元的操作优化。
A platform for the South China Sea ethylene glycol recovery unit (Mono-Ethylene Glycol Recovery Unit referred to as MRU) for receiving ethylene glycol from submarine pipeline solution, after pretreatment, dehydration regeneration, desalination and other stages to meet the injection requirements. MRU generally has a large design scale and a large variation range of inlet flow rate. The design of the MRU has not yet been fully realized domestically. During the operation, heat exchangers such as heat exchangers can not reach their efficiency. This article describes the MRU system in the early gas production, regeneration stage can not be normal when the reboiler temperature rise and other issues analysis and solutions, thus proposed dehydration regeneration unit operation optimization.