Alef Khalid, Iglauer Stefan, Barifcani Ahmed
WA School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Bentley, W.A., 6102, Australia.
School of Engineering, Petroleum Engineering Discipline, Edith Cowan University, Joondalup, W.A., 6027, Australia.
MethodsX. 2018 Dec 4;6:6-14. doi: 10.1016/j.mex.2018.12.004. eCollection 2019.
Monoethylene glycol (MEG), a common chemical used for the inhibition of gas hydrate formation may undergo degradation in the regeneration/reclamation process. Limited research exists on the effect of degradation of MEG on hydrate formation, production facilities and equipment especially in the presence of other chemical additives. The proposed method allows for streamlining the process of preparing, degrading and analysis of MEG solutions for hydrate testing and degradation products. •Procedure to prepare accurate MEG solutions avoiding oxidative degradation of MEG (i.e., controlling oxygen ingress).•Two methods are suggested to mimic field-like degradation of MEG solutions (i.e., degradation by reclamation and autoclave).•Adoption of the isochoric hydrate testing method while using a high pressure cell with the aid of a computer script to accurately evaluate hydrate phase equilibria conditions.
单乙二醇（MEG）是一种用于抑制气体水合物形成的常见化学品，在再生/回收过程中可能会发生降解。关于MEG降解对水合物形成、生产设施和设备的影响，尤其是在存在其他化学添加剂的情况下，相关研究有限。所提出的方法可简化用于水合物测试和降解产物的MEG溶液的制备、降解和分析过程。•制备准确的MEG溶液的程序，避免MEG的氧化降解（即控制氧气进入）。•建议使用两种方法模拟MEG溶液的类似现场降解（即通过回收和高压釜进行降解）。•采用等容水合物测试方法，同时使用高压釜并借助计算机脚本准确评估水合物相平衡条件。
