Experimental Vapor–Liquid Equilibrium Data for Binary Mixtures of Methyldiethanolamine in Water and Ethylene Glycol under Vacuum,Journal of Chemical & Engineering Data

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Experimental Vapor–Liquid Equilibrium Data for Binary Mixtures of Methyldiethanolamine in Water and Ethylene Glycol under Vacuum
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2018-03-28 00:00:00 , DOI: 10.1021/acs.jced.8b00054
Adam Soames ₁ , Ammar Al Helal ₁ , Stefan Iglauer ₂ , Ahmed Barifcani ₁ , Rolf Gubner ₁

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Methyldiethanolamine (MDEA) is a widely used chemical in the natural gas processing industry as a solvent for CO₂ and H₂S capture and as a basic compound for pH stabilization corrosion control. During pH stabilization corrosion control, the removal of MDEA during the (mono)ethylene glycol (MEG) regeneration process may occur under vacuum conditions during reclamation in which the removal of salt cations is performed. Isobaric vapor–liquid equilibrium data for the binary MEG–MDEA system is presented at (20, 10 and 5) kPa and water–MDEA system at (40, 20, 10) kPa to simulate its behavior during MEG reclamation under vacuum. Vapor and liquid equilibrium concentrations of MDEA were measured using a combination of ion chromatography and refractive index. The generated experimental VLE data were correlated to the UNIQUAC, NRTL, and Wilson activity coefficient models, and the respective binary parameters were regressed.

中文翻译：

真空下水和乙二醇中甲基二乙醇胺的二元混合物的汽-液平衡实验数据

甲基二乙醇胺（MDEA）是天然气加工行业中广泛用作CO ₂和H ₂溶剂的化学物质S捕获物，作为pH稳定腐蚀控制的碱性化合物。在稳定pH值的腐蚀控制过程中，在（单）乙二醇（MEG）再生过程中MDEA的去除可能发生在进行盐阳离子去除的回收过程中的真空条件下。二元MEG-MDEA系统的等压气液平衡数据以（20、10和5）kPa表示，水-MDEA系统以（40、20、10）kPa表示，以模拟其在真空条件下MEG回收期间的行为。使用离子色谱法和折射率的组合测量MDEA的蒸汽和液体平衡浓度。将生成的实验性VLE数据与UNIQUAC，NRTL和Wilson活度系数模型相关联，并对各自的二元参数进行回归。

更新日期：2018-03-28

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