CAJ | 학술논문

乙二醇（MEG）再生回收装置首次应用于海上平台，其流程包括预处理、再生和脱盐3部分。预处理通过闪蒸脱除MEG富液中的轻烃并加入NaOH，利用化学反应脱除能生成沉淀物的二价盐。再生过程是在低压下利用精馏原理将轻组分（水）与重组分（MEG）分离，获取质量分数高于80％的MEG贫液。MEG贫液脱盐采用负压闪蒸的方法使可溶性一价盐（Na＋等）和MEG分离，最终获得合格的MEG贫液。装置性能稳定可靠，MEG损失量少，具有广阔的应用前景。
을이순（MEG）재생회수장치수차응용우해상평태，기류정포괄예처리、재생화탈염3부분。예처리통과섬증탈제MEG부액중적경경병가입NaOH，이용화학반응탈제능생성침정물적이개염。재생과정시재저압하이용정류원리장경조분（수）여중조분（MEG）분리，획취질량분수고우80％적MEG빈액。MEG빈액탈염채용부압섬증적방법사가용성일개염（Na＋등）화MEG분리，최종획득합격적MEG빈액。장치성능은정가고，MEG손실량소，구유엄활적응용전경。
The MEG regeneration and reclamation technology is successfully applied to off-shore platform .The process includes MEG pre-treatment ,regeneration and desalination .The pre-treatment section is designed to remove hydrocarbon from the rich MEG and divalent metal salts ,which can generate precipitation by reacting with sodium hydroxide .Adopting distillation column ,the MEG regeneration section operates at a pressure slightly above the atmospheric pres-sure ,and the mass concentration of lean MEG solubility should be more than 80% .The key technology of the process is desalination ,w hich uses a vacuum flash separator to crystallize and remove the high soluble one valence salts ,and primarily sodium salts from the lean MEG .The MEG regeneration and reclamation package has good performance and less MEG loss .Therefore , it has a variety of applications in prospect .