Phase equilibria of glycols and hydrocarbons: experimental measurements and modeling with the GCA-EoS

MARIANA GONZÁLEZ PRIETO; MARK D. WILLIAMS-WYNN; I. BAHADUR; FRANCISCO A. SÁNCHEZ; SELVA PEREDA; AMIR H. MOHAMMADI; D. RAMJUGERNATH

Alicante

Congreso; X Iberoamerican Conference on Phase Equilibria and Fluid Properties for Process Design (equifase 2012); 2015

Universidad de Alicante

Physical absorption solvents are used for treating natural gas and fossil fuel streams in a number of ways. Glycols such as ethylene glycol (MEG), diethylene glycol (DEG) and triethylene glycol (TEG) are commonly used in natural gas and fossil fuel dehydration processes. Natural gas often contains some quantities of heavy hydrocarbons (HHCs). The presence of HHCs can cause many operational and economic problems. For instance, HHCs can cause foaming and flooding in glycol units which are used to separate water vapor from natural gases. Accurate design and optimization of these units normally require accurate knowledge of phase behavior in natural gas components + glycol aqueous solution systems. Therefore, it is necessary to rely on accurate and reliable experimental data and thermodynamic models. This work is part of a broader project for modeling the hydrocarbon solubility in glycol aqueous solutions applied in the design and optimization of natural gas and fossil fuel dehydration units.This work is part of a broader project for modeling the hydrocarbon solubility in glycol aqueous solutions applied in the design and optimization of natural gas and fossil fuel dehydration units.