Exploring alternative solvents for gas processing using the soft-SAFT EoS
authors Crespo, EA; Carvalho, PJ; Coutinho, JAP; Vega, LF
nationality International
journal SEG/AAPG/EAGE/SPE RESEARCH AND DEVELOPMENT PETROLEUM CONFERENCE AND EXHIBITION 2018, RDP 2018
keywords Dehydration; Gas producers; Gasoline; Phase equilibria; Polyethers; Solutions; Alternative solvents; Gas processing; Gas separations; Novel separation process; Oil industries; Physical solvent; Systematic study; Ethers
abstract Polyethers are a family of compounds of interest for the oil industry: glycols are known by their application as dehydration agents while glymes have gained the interest from both industry and academia as feasible candidates for gas separations. However, their characterization is still poor, hindering the development and optimization of novel separation processes. This work aims at demonstrating the soft-SAFT reliability that, when combined with a limited number of experiments, can provide a way for systematic studies on the performance of physical solvents for gas processing technologies. A recently developed, consistent, reliable and transferable molecular model for polyethers in the framework of soft-SAFT, is here applied for the first time to model the vapor-liquid equilibria (VLE) of glymes + CH4/CO2. Moreover, the same model is shown to be able to accurately describe the VLE of aqueous solutions of polyethers. © 2018 Society of Exploration Geophysicists.
publisher Society of Exploration Geophysicists
year published 2018
beginning page 156
ending page 160
digital object identifier (doi) 10.1190/RDP2018-41512825.1
unique article identifier 2-s2.0-85053685536

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